Nick Thoman
Courtesy of: Rob Schumacher - USA Today Sports
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KNOXVILLE, Tennessee, December 6. FRESHoff an American record in the 200 medley relay this evening as well as the fastest 50-yard backstroke time ever to start the night at the USA Winter Nationals, SwimMAC's Nick Thoman made history with a blazing backhalf to nearly break 44 seconds in the finale of the 100-yard back.

Thoman, out under 21.60 behind Grevers at the 50-yard mark, hit the nitrous down the stretch as he turned in a blistering 22.47 backhalf en route to an American and U.S. Open record of 44.07. There's little doubt he'll find a way to become the first man under 44-seconds with that type of speed. He had nearly broken Grevers' American record of 44.55 last night with a 44.56 leadoff in SwimMAC's 400 medley relay, but saved his best for the individual swim.

Grevers, meanwhile, went from a 21.48 at the 50 to a 44.49 (23.01) to close the night with a personal best as the now second-fastest swimmer ever in the event.

California's Ryan Murphy completed what was truly a remarkable podium with a third-place time of 45.77.

NYAC's Arkady Vyatchanin (45.88), Club Wolverine's Junya Koga (46.34), California's Jacob Pebley (46.76), Louisville's Grigory Tarasevich (47.10) and Indiana's James Wells (47.77) also competed in the finale. Indiana's Eric Ress topped the B final in a 47.53.