
Runners compete in the first heat of the prelims for the men’s 800 meter run. Windle and White qualified for the finals on Thursday with 1:48.66 and 1:48.68. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Georgia Bulldog Christian Harrison, Brooks/Beasts TC Drew Windle, Saucony Duane Solomon, and Georgetown Bulldog Joseph White compete in the first heat of the prelims for the men’s 800 meter run. Windle and White qualified for the finals on Thursday with 1:48.66 and 1:48.68. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Hoka’s Mike Rutt, Clayton Murphy, Nike’s Brandon Johnson, and Donovan Brazier compete in the fourth heat of the prelims for the men’s 800 meter run. Murphy and Johnson qualified for the finals on Thursday with 1:47.61 and 1:47.62. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Ole Miss Rebel Craig Engels, Chris Low, Brooks/Beasts TC Casimir Loxsom, and Brooks’ Shaquille Walker compete in the third heat of the prelims for the men’s 800 meter run. Loxsom and Walker both qualified for the finals on Thursday with the same time of 1:47.76. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Runners compete in the second heat of the prelims for the men’s 800 meter run. Berian and Sowinksi qualified for the finals on Thursday with 1:46.03 and 1:46.17. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Nick Hartle, Edose Ibadin, Nike’s Erik Sowinski and Boris Berian compete in the second heat of the prelims for the men’s 800 meter run. Berian and Sowinski qualified for the finals on Thursday with 1:46.03 and 1:46.17. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Nike’s Michael Berry competes in the second heat of the prelims for the men’s 400 meter dash. Berry finished third with a 45.79 second run, however he did not qualify for the finals. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Runners compete in the second heat of the prelims for the men’s 400 meter dash. Florida Gator Geno Hall qualified for the finals after placing first with a 45.61 second run. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Runners compete in the third heat of the prelims for the men’s 400 meter dash. Nike’s LaShawn Merritt and Adidas’ Tony McQuay qualified for the finals with 45.54 and 45.94 respectively. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Oregon Duck Marcus Chambers acknowledges the crowd as he warms up for the prelims in the men’s 400 meter dash. Chambers qualified for the finals after finishing second in his heat with a 45.87. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Oregon Duck Marcus Chambers throws up an “O” to the crowd as he’s announced for the prelims in the men’s 400 meter dash. Chambers qualified for the finals after finishing second in his heat with a 45.87. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Texas Tech’s Kyle Collins, James Harris, Adidas’ David Verburg, and Oregon Duck Marcus Chambers race to the finish during the prelilms of the men’s 400 meter dash. Verburg and Chambers qualified for the finals after finishing in 45.31 and 45.87 respectively. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Former Oregon Duck and current runner for Nike, Phyllis Francis warms up for the prelims of the women’s 400 meter dash. Francis finished first with 50.81, qualifying her for the finals. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Ebony Eutsy, Nike’s Phyllis Francis, and Iowa’s Elexis Guster race to the finish line of the women’s 400 meter dash prelims. Francis placed first in 50.81. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Sanya Richards-Ross breaks away from the starter blocks after the gun. However, Richards-Ross did not finish the race due to an injury prior to the trials. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

A member of the crowd embraces Sanya Richards-Ross as she makes her way around Hayward Field after stepping out of the women’s 400 meter dash. Richards-Ross had been struggling with an injury prior to the trials and was unable to complete the race. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Sanya Richards-Ross waves to the crowd as she makes her way around Hayward Field after stepping out of the women’s 400 meter dash. Richards-Ross had been struggling with an injury prior to the trials and was unable to complete the race. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold

Allyson Felix, 2012 London Olympic’s gold medalist and runner for Nike, prepares for the women’s preliminary 400 meter dash. Felix will compete in the semi-finals on Saturday after qualifying with a 51.96. Day One of the U.S. Olympic Trials Track and Field began on Friday at Hayward Field in Eugene, Ore. and will continue through July 10. Photo by Katie Pietzold
