The 2019 TYR Pro Swim Series has entered the home stretch as the second to last stop of the series kicks off today in Bloomington, Indiana. Here are a few of the top races to watch as the meet kicks off this afternoon with the 1500m freestyle at 4 p.m. ET.

Men’s and Women’s 100m Free

The women’s race features some of the top sprinters in the world, with 2016 Olympic gold medalist Simone Manuel leading the way. She’ll have her hands full with Mallory Comerford, while Canadian teen Taylor Ruck enters with the third best seed time. All three swimmers have cleared 53 before and could challenge the U.S. Open record of 52.54 set by Manuel last year. Meanwhile in the men’s race, 2012 Olympic gold medalist Nathan Adrian will be back in action for the first time since being diagnosed with testicular cancer this winter. Adrian set the TYR Pro Swim Series record of 48.00 in 2016 and along with Indiana trio Zach Apple, Blake Pieroni and Bruno Blaskovic, will look to challenge that time.

Men’s 100m Breast

The top five swimmers – Cody Miller (59.08), Andrew Wilson (59.19), Michael Andrew (59.38), Nic Fink (59.40) and Devon Nowicki (59.48) – are separated by only four-tenths of a second and make up an intriguing group of veterans and newcomers. It will be a fight to the finish to see who can get their hand on the wall first in one of the most tightly seeded events of the entire meet.

Women’s 200m Free

The women’s 200m free should feature a great race between a couple of stars in their respective countries – Katie Ledecky for the U.S., and Taylor Ruck for Canada. Ruck enters as the top seed at 1:54.44, while Ledecky is second at 1:54.56. Both are just off Ledecky’s TYR Pro Swim Series record time of 1:54.43 from 2016. With Ruck coming from more of a sprint background and Ledecky distance, the two will collide in what should be another epic showdown. And, don’t count out third seed Allison Schmitt, the 2012 Olympic champ and American record holder in the event.

Men’s 100m Butterfly

A name better known in the collegiate and short course ranks, Indiana’s Vini Lanza enters the meet with the top time in the men’s 100m fly at 51.42. He’ll have to hold off Michael Andrew (51.53), Tom Shields (51.55) and Guatemala’s Luis Martinez (51.87) if he wants to win in Bloomington, however. It’s shaping up to be a fight to the very end with a fast and talented group of sprinters at the top of the psych sheet.

Women’s 200m Breast

The women’s 200m breast will have a lot of challengers to make the Olympic team next summer in Omaha, with a bunch of swimmers posting times under 2:25 in the event. Three of those swimmers will be in Bloomington, led by Olympic gold medalist Lilly King. King’s 2:21.83 is seeded first, while Annie Lazor (2:22.99) and Emily Escobedo (2:23.88) are close behind. Three others – Melissa Rodriguez, Madisyn Cox and Miranda Tucker – are all close behind with 2:25s. It could be a partial preview of next summer’s final in Omaha.

Live coverage from Bloomington begins with the 1500m freestyle on Thursday at 4 p.m. ET. Checkout the complete TV/Webcast schedule.

Make sure to follow USASwimming.org for all of the results, news and webcasts from Bloomington this weekend!