By Darci Miller | Jan. 14, 2017, 9:46 p.m. (ET)
Jacob Pebley competes in the men's 200-meter backstroke at the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on Aug. 10, 2016 in Rio de Janeiro.


Six U.S. Olympians were in action on the second night of the Arena Pro Swim Series at Austin, two of them cruising to first-place finishes.

Jacob Pebley won the men's 200-meter backstroke, blowing away the rest of the field. He finished with a time of 1:55.95; Sean Lehane, the second-place finisher, came in at 2:00.33. Pebley made his Olympic debut in Rio and took fifth in the 200 back. In the same event, he earned wins at the 2015 World University Games and 2015 U.S. National Championships. He recently earned silver at the 2016 FINA World Swimming Championships for short course distances.

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Olympians Melanie Margalis and Hali Flickinger went 1-2 in the women's 400-meter freestyle, finishing in 1:58.78 and 1:59.20, while three-time Olympian Amanda Weir placed fourth in 2:01.11. Kayla Sanchez rounded out the top three in 1:59.81. Margalis earned the win after a huge late effort to overtake Flickinger in the last 50 meters. Margalis' win came after two top-three finishes the night before, a win in the 200-meter breaststroke and third place in the 400-meter freestyle, putting her atop the Arena Pro Swim Series leaderboard. Weir also competed in the women's 50-meter freestyle, finishing fifth with a time of 25.74.

Matt Grevers and Ryan Held finished fourth and fifth in the men's 50-meter freestyle, coming in at 22.66 and 22.69, respectively.