{"id":621145,"date":"2025-08-19T09:11:34","date_gmt":"2025-08-19T16:11:34","guid":{"rendered":"https:\/\/www.swimmingworldmagazine.com\/news\/?p=621145"},"modified":"2025-08-19T16:41:40","modified_gmt":"2025-08-19T23:41:40","slug":"world-junior-championships-day-1-agostina-hein-sets-argentina-record-in-400-im","status":"publish","type":"post","link":"https:\/\/www.swimmingworldmagazine.com\/news\/world-junior-championships-day-1-agostina-hein-sets-argentina-record-in-400-im\/","title":{"rendered":"World Junior Championships, Day One Finals: Agostina Hein Sets South American Record in 400 IM; Russia Breaks WJR"},"content":{"rendered":"<p><strong>World Junior Championships, Day 1: Agostina Hein Sets South American Record in 400 IM<\/strong><\/p>\n<p><strong>Agostina Hein<\/strong> of Argentina set the meet, Argentine senior and South American records in the women\u2019s 400-meter individual medley to win gold at the World Junior Championships Tuesday.<\/p>\n<p>Hein went 4:34.34 to win the race by more than a second. It downs the amazingly long-lived mark set at the 2004 Olympics by <strong>Georgina Bardach.<\/strong> That time was a South American record and it earned her bronze in one of the biggest swimming accomplishments in the nation\u2019s history.<\/p>\n<p>Hein looks poised to be the next star for an Argentina program long dormant, coming off a strong Junior Pan Am Games this summer.<\/p>\n<p>All the action from the first finals session in Otopeni, Romania (all finals except where noted):<\/p>\n<ul>\n<li><a href=\"https:\/\/vmrw8k5h.tinifycdn.com\/results\/pdf\/world-junior-championships-international-elite-2025-08-19.pdf\" target=\"_blank\" rel=\"noopener\">Psych Sheets<\/a><\/li>\n<li><a href=\"https:\/\/www.omegatiming.com\/2025\/world-aquatics-junior-swimming-championships-live-results\" target=\"_blank\" rel=\"noopener\">Meet Results<\/a><\/li>\n<li><a href=\"https:\/\/www.swimmingworldmagazine.com\/meet\/2024-world-junior-championships\" target=\"_blank\" rel=\"noopener\">Swimming World Coverage<\/a><\/li>\n<li><a href=\"https:\/\/www.omegatiming.com\/File\/0001190005FFFFFFFFFFFFFFFFFFFF1E.pdf\" target=\"_blank\" rel=\"noopener\">Daily Timelines<\/a><\/li>\n<li><a href=\"https:\/\/www.worldaquatics.com\/where-to-watch\/live&amp;ondemand\" target=\"_blank\" rel=\"noopener\">Livestream\/On-Demand<\/a><\/li>\n<\/ul>\n<h3>Men\u2019s 400 Freestyle<\/h3>\n<p>The first event of the finals turned into a Russian battle. Swimming as Neutral Athletes, <strong>Grigorii Vekovishchev<\/strong> bested teammate <strong>Egor Babinich<\/strong> by 0.93 seconds to win in 3:46.64. It put a scare into the meet record of 3:46.06 set by <strong>Gabor Zombori<\/strong> in 2019.<\/p>\n<p>Vekovishchev was first at every wall from 150 on. Babinich ran third until surging in the fifth 50. He went 3:47.57, holding off by .16 seconds the charge of China\u2019s <strong>Xu Haibo,<\/strong> who got bronze. Swimming from Lane 8, Xu was sixth at 350 meters before coming back in 26.93.<\/p>\n<p>The lone American in the field, <strong>Aiden Hammer,<\/strong> finished fifth in 3:48.20. He had been second at prelims. He was a spot behind the American-named, but Aussie-Born <strong>Tex Cross,<\/strong> who went 3:48.17 for fourth. Eighth in the final was Turkey\u2019s <strong>Kuzey Tuncelli.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"621151\" data-permalink=\"https:\/\/www.swimmingworldmagazine.com\/news\/world-junior-championships-day-1-agostina-hein-sets-argentina-record-in-400-im\/m400free-6\/\" data-orig-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400free.jpg\" data-orig-size=\"1150,741\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"M400free\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400free-700x500.jpg\" data-large-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400free-1024x660.jpg\" class=\"aligncenter wp-image-621151\" src=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400free.jpg\" alt=\"\" width=\"650\" height=\"419\" srcset=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400free.jpg 1150w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400free-1024x660.jpg 1024w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400free-280x180.jpg 280w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400free-300x193.jpg 300w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400free-450x290.jpg 450w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400free-533x343.jpg 533w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/p>\n<h3>Women\u2019s 50 Breaststroke Semifinals<\/h3>\n<p>American <strong>Rachel McAlpin<\/strong> led the way with a time of 30.78. She was .19 seconds ahead of <strong>Ralina Giliazova<\/strong> of the Neutral Athletes, with fellow American <strong>Elle Scott<\/strong> third in 31.13. <strong>Irene Burato<\/strong> of Italy finished fourth.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"621150\" data-permalink=\"https:\/\/www.swimmingworldmagazine.com\/news\/world-junior-championships-day-1-agostina-hein-sets-argentina-record-in-400-im\/w50breast-6\/\" data-orig-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W50breast.jpg\" data-orig-size=\"1139,726\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"W50breast\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W50breast-700x500.jpg\" data-large-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W50breast-1024x653.jpg\" class=\"aligncenter wp-image-621150\" src=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W50breast.jpg\" alt=\"\" width=\"650\" height=\"414\" srcset=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W50breast.jpg 1139w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W50breast-1024x653.jpg 1024w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W50breast-280x178.jpg 280w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W50breast-300x191.jpg 300w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W50breast-450x287.jpg 450w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W50breast-533x340.jpg 533w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/p>\n<h3>Men\u2019s 100 Backstroke Semifinals<\/h3>\n<p>An American was on top here, too, with <strong>Gavin Keogh<\/strong> going 53.52 to lead a crowded final eight. His fellow American, <strong>Collin Holgerson,<\/strong> missed out in 10th.<\/p>\n<p><strong>John Shortt<\/strong> of Ireland finished second in 53.80. He\u2019ll be joined in the final by swimmers from eight different nations. <strong>Georgii Iakovlev<\/strong> of the Neutral Athletes was third, followed by Aussie <strong>Henry Allan.<\/strong> The final eight includes Israeli <strong>Aukan Goldin,<\/strong> Trinidadian <strong>Liam Carrington<\/strong> and Canadian <strong>Parker Deshayes.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"621149\" data-permalink=\"https:\/\/www.swimmingworldmagazine.com\/news\/world-junior-championships-day-1-agostina-hein-sets-argentina-record-in-400-im\/m100backsf-3\/\" data-orig-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100backsf.jpg\" data-orig-size=\"1020,863\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"M100backsf\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100backsf-700x500.jpg\" data-large-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100backsf.jpg\" class=\"aligncenter wp-image-621149\" src=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100backsf.jpg\" alt=\"\" width=\"650\" height=\"550\" srcset=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100backsf.jpg 1020w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100backsf-236x200.jpg 236w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100backsf-300x254.jpg 300w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100backsf-450x381.jpg 450w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100backsf-533x451.jpg 533w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/p>\n<h3>Women\u2019s 400 Individual Medley<\/h3>\n<p><strong>Agostina Hein<\/strong> made history, and emphatically so. The Argentine teen went 4:34.34 in the final. That\u2019s exactly 2.5 seconds quicker than the time that <strong>Leah Hayes<\/strong> used to set the meet record in 2023, and it put her 1.15 seconds ahead of Great Britain\u2019s <strong>Amalie Smith.<\/strong> (Not to be confused with Australia\u2019s <strong>Amelie Smith<\/strong> \u2013 second \u201ca\u201d vs. second \u201ce\u201d \u2013 who finished eighth.)<\/p>\n<p><strong>Georgina Bardach\u2019s<\/strong> record is one that Hein has been circling. She was three tenths off in prelims at 4:37.87. She won Junior Pan Ams in 4:38.41, a meet where she took down <strong>Virginia Bardach\u2019s<\/strong> national record in the 200 IM.<\/p>\n<p>Smith went 4:35.49. <strong>Shuna Sasaki<\/strong> of Japan was third in 4:38.94, keeping the Americans off the podium.<\/p>\n<p><strong>Audrey Derivaux,<\/strong> who was second in prelims, dipped to fourth, undone by a slow first 50 of breaststroke that was two full seconds slower than Sasaki and nearly four slower than Smith. <strong>Kayla Han<\/strong> finished fifth in 4:41.18, just outtouching <strong>Misuzu Nagaoka<\/strong> of Japan. <strong>Vivien Jackl<\/strong> of Hungary was seventh.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"621148\" data-permalink=\"https:\/\/www.swimmingworldmagazine.com\/news\/world-junior-championships-day-1-agostina-hein-sets-argentina-record-in-400-im\/w400im-14\/\" data-orig-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W400IM-1.jpg\" data-orig-size=\"1155,732\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"W400IM\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W400IM-1-700x500.jpg\" data-large-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W400IM-1-1024x649.jpg\" class=\"aligncenter wp-image-621148\" src=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W400IM-1.jpg\" alt=\"\" width=\"650\" height=\"412\" srcset=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W400IM-1.jpg 1155w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W400IM-1-1024x649.jpg 1024w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W400IM-1-280x177.jpg 280w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W400IM-1-300x190.jpg 300w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W400IM-1-450x285.jpg 450w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W400IM-1-533x338.jpg 533w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/p>\n<h3>Men\u2019s 100 Breaststroke Semifinals<\/h3>\n<p>The showdown between <strong>Filip Nowacki<\/strong> and <strong>Shin Ohashi<\/strong> in the final is set, though it might not be exclusively a two-man race.<\/p>\n<p>Nowacki set the semis pace in 59.24. Ohashi was second in 59.72, the two leaders swimming out of different heats. Third was <strong>Evangelos Ntoumas<\/strong> of Greece in 59.77, while Nowacki has a fellow British swimmer under a minute in <strong>Max Morgan<\/strong> &#8211; fourth in 59.93. <strong>Oliver Dawson<\/strong> of Canada was fifth.<\/p>\n<p>Only one American made the final, and just barely, with <strong>Gabe Nunziata<\/strong> eighth in 1:00.68. <strong>Andrew Eubanks<\/strong> finished 14th to miss out.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"621153\" data-permalink=\"https:\/\/www.swimmingworldmagazine.com\/news\/world-junior-championships-day-1-agostina-hein-sets-argentina-record-in-400-im\/m100breastsf-5\/\" data-orig-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100breastsf.jpg\" data-orig-size=\"1029,876\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"M100breastsf\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100breastsf-700x500.jpg\" data-large-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100breastsf-1024x872.jpg\" class=\"aligncenter wp-image-621153\" src=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100breastsf.jpg\" alt=\"\" width=\"650\" height=\"553\" srcset=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100breastsf.jpg 1029w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100breastsf-1024x872.jpg 1024w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100breastsf-235x200.jpg 235w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100breastsf-300x255.jpg 300w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100breastsf-450x383.jpg 450w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M100breastsf-533x454.jpg 533w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/p>\n<h3>Women\u2019s 100 Backstroke Semifinals<\/h3>\n<p><strong>Charlotte Crush<\/strong> leads the way into finals by a wide margin, her time of 59.21 just a tenth off the meet record set in 2017 by one <strong>Regan Smith.<\/strong> She was 1.1 seconds ahead of the field and the only one under a minute. Second was home-nation hope <strong>Daria-Mariuca Silisteanu<\/strong> in 1:00.31, .07 seconds up on Canadian <strong>Madison Kryger.<\/strong><\/p>\n<p>Romania has two in the final, with <strong>Aissia Claudia Prisecariu<\/strong> sixth. It comes at the expense of both Chinese swimmers and the second American, with <strong>Julia Mischler<\/strong> going 1:00.65 to miss out. Places two through 10 were separated by .46 seconds.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"621154\" data-permalink=\"https:\/\/www.swimmingworldmagazine.com\/news\/world-junior-championships-day-1-agostina-hein-sets-argentina-record-in-400-im\/w100backsf-4\/\" data-orig-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W100backsf.jpg\" data-orig-size=\"1053,896\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"W100backsf\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W100backsf-700x500.jpg\" data-large-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W100backsf-1024x871.jpg\" class=\"aligncenter wp-image-621154\" src=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W100backsf.jpg\" alt=\"\" width=\"650\" height=\"553\" srcset=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W100backsf.jpg 1053w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W100backsf-1024x871.jpg 1024w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W100backsf-235x200.jpg 235w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W100backsf-300x255.jpg 300w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W100backsf-450x383.jpg 450w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W100backsf-533x454.jpg 533w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/p>\n<h3>Men\u2019s 400 Freestyle Relay<\/h3>\n<p>There\u2019s a bronze medal in the race for the U.S., and barely that, needing to surge on the final leg to get in podium position for the first time in the race.<\/p>\n<p>The gold went to the Neutral Athletes B, in a meet and world junior record of 3:15.38, clipping a tenth off the American mark from 2023. <strong>Mikhail Shcherbakov, Roman Zhidkov, Egor Proshin<\/strong> and <strong>Georgii Zlotnikov<\/strong> comprised the squad.<\/p>\n<p>Second was Italy in a wild race. The Italians were eighth after one leg and seventh at the midway point. But <strong>Carlos D\u2019Ambrosio<\/strong> split 47.20 on the end to drag them from fifth to silver.<\/p>\n<p>The U.S. needed a similar rally. They were seventh after one leg and fifth at the midway point. <strong>Michael Rice\u2019s<\/strong> 48.85 rose the U.S. from fourth to bronze, .01 ahead of Brazil. <strong>Austin Carpenter, Rowan Cox<\/strong> and <strong>Kenneth Barnicle<\/strong> made up the squad.<\/p>\n<p>Great Britain was first in prelims and in third at the final handoff before slipping to fifth. <strong>Jacob Mills<\/strong> led off in 48.27.<\/p>\n<h4><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"621158\" data-permalink=\"https:\/\/www.swimmingworldmagazine.com\/news\/world-junior-championships-day-1-agostina-hein-sets-argentina-record-in-400-im\/m400freerelay\/\" data-orig-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400freerelay.jpg\" data-orig-size=\"925,909\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"M400freerelay\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400freerelay-700x500.jpg\" data-large-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400freerelay.jpg\" class=\"aligncenter wp-image-621158\" src=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400freerelay.jpg\" alt=\"\" width=\"650\" height=\"639\" srcset=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400freerelay.jpg 925w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400freerelay-204x200.jpg 204w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400freerelay-300x295.jpg 300w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400freerelay-450x442.jpg 450w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400freerelay-916x900.jpg 916w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/M400freerelay-533x524.jpg 533w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/h4>\n<h3>Women\u2019s 800 Freestyle Relay<\/h3>\n<p>There are no gold medals in the first day of relays for the United States. China made sure of that.<\/p>\n<p>China won the race in 7:51.59, just .12 off the meet and world junior record set in 2017 by Canada. The U.S. couldn\u2019t keep pace, second most of the way to silver in 7:52.82.<\/p>\n<p>China started with a pair of 1:57s from <strong>Yan Tiaoshan<\/strong> and <strong>Gong Zhengqi.<\/strong> The third leg was a weak spot for both China and the U.S., but <strong>Yang Peiqi<\/strong> brought it home in 1:55.53 to take a .08-second lead to more than a second.<\/p>\n<p>The U.S. was second via <strong>Kennedi Dobson<\/strong> (1:57.53), <strong>Lily King<\/strong> (not that one, this is one \u201cl\u201d), <strong>Kayla Han<\/strong> and <strong>Rylee Erisman.<\/strong> Erisman came home in 1:56.69.<\/p>\n<p>Italy was the only team with four sub-2-minute legs to win bronze in 7:56.86. Canada was fourth, led by <strong>Ella Cosgrove\u2019s<\/strong> 1:57.61.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"621159\" data-permalink=\"https:\/\/www.swimmingworldmagazine.com\/news\/world-junior-championships-day-1-agostina-hein-sets-argentina-record-in-400-im\/w800fr-4\/\" data-orig-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W800FR.jpg\" data-orig-size=\"913,902\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"W800FR\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W800FR-700x500.jpg\" data-large-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W800FR.jpg\" class=\"aligncenter wp-image-621159\" src=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W800FR.jpg\" alt=\"\" width=\"650\" height=\"642\" srcset=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W800FR.jpg 913w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W800FR-202x200.jpg 202w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W800FR-300x296.jpg 300w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W800FR-450x445.jpg 450w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W800FR-911x900.jpg 911w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W800FR-533x527.jpg 533w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2025\/08\/W800FR-100x100.jpg 100w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>World Junior Championships, Day 1: Agostina Hein Sets South American Record in 400 IM Agostina Hein of Argentina set the meet, Argentine senior and South American records in the women\u2019s<\/p>\n","protected":false},"author":8367,"featured_media":524001,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"dois","enabled":false},"version":2}},"categories":[3,10],"tags":[136721,136301,133037,134785,135892,134264,2190,129777,135300,133600,136729,88258,136730,134778,134272],"class_list":["post-621145","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-featured","category-world","tag-2024-world-junior-championships","tag-2025-world-junior-championships","tag-agostina-hein","tag-aiden-hammer","tag-amalie-smith","tag-amelie-smith","tag-argentina","tag-audrey-derivaux","tag-filip-nowacki","tag-gavin-keogh","tag-grigorii-vekovishchev","tag-kayla-han","tag-rachel-mcaplin","tag-shin-ohashi","tag-tex-cross"],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.3 (Yoast SEO v24.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\r\n<title>Agostina Hein Sets South America Mark in 400 IM at World Juniors<\/title>\r\n<meta name=\"description\" content=\"Agostina Hein of Argentina set the meet, Argentine senior and South American records in the women\u2019s 400 IM at World Junior Championships.\" \/>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/www.swimmingworldmagazine.com\/news\/world-junior-championships-day-1-agostina-hein-sets-argentina-record-in-400-im\/\" \/>\r\n<meta property=\"og:locale\" content=\"en_US\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"World Junior Championships, Day One Finals: Agostina Hein Sets South American Record in 400 IM; 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