INDIANAPOLIS, Indiana, June 25. JEFF Commings reports on the first day of preliminary competition at the USA Swimming nationals and world championship trials in Indianapolis, where four events featured Olympians as top seeds and young swimmers shined at the IU Natatorium.

From Cammile Adams' impressive 200 fly to Nathan Adrian's easy speed in the 100 free, today's Streamlined News will get you ready for tonight's finals! Editor's note: Elizabeth Beisel has scratched from the 200 butterfly final.