By Darci Miller | Jan. 15, 2017, 9:05 p.m. (ET)
Matt Grevers competes in the men's 200-meter backstroke at the Mutual of Omaha Duel in the Pool at Indiana University Natatorium on Dec. 11, 2015 in Indianapolis.

At the 2016 U.S. Olympic Team Trials, Matt Grevers found his bid for a third Olympic team thwarted when he finished third in his signature event, the 100-meter backstroke. The Arena Pro Swim Series at Austin was his return to the pool after this stunning upset.

If Grevers felt any pressure, no one would be able to tell. It was business as usual as he won the 100 back in 53.31 seconds, 2016 Olympian Jacob Pebley taking second in 54.05 for his second top-three finish of the meet. Winning the 100 back is nothing new for Grevers: he won Olympic gold in 2012 and silver in 2008. Though he missed his chance to defend his title when he missed the 2016 Olympic team, Grevers plans to compete through at least the 2017 season.

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Also on Sunday night, Melanie Margalis picked up her third win of the event, taking the top spot in the 200-meter individual medley in 2:11.06. Earlier in the session, she finished second in the women's 100-meter breaststroke with a time of 1:07.88; 2012 Olympian Breeja Larson finished just ahead in 1:07.17. Margalis already had wins in the 400 freestyle and 200 breaststroke, as well as a third-place finish in the 400-meter freestyle. Her huge weekend gives her the lead atop the Arena Pro Swim Series leaderboard.

Hali Flickinger rounded things out in the women's 200-meter butterfly. Her time of 2:08.77 was over two seconds ahead of the rest of the field. Flickinger made her Olympic debut at the Rio 2016 Olympic Games, finishing seventh in the 200 fly. 

The Arena Pro Swim Series next heads to Indianapolis on March 2-4.