"In my heart of hearts, I just feel like I earned the third spot. I almost feel like I was kind of robbed," Tarmoh said.
"Once this is over, I'll be happy about it," Felix said.
Originally, Tarmoh was declared the third-place finisher behind winner Carmelita Jeter and runner-up Tianna Madison. The official scoring said she had edged training partner Felix by 0.0001 seconds, but a dead heat was declared after a photo finish review.
Bobby Kersee, who coaches both women, said soon thereafter that he did not want to distract his runners from Saturday's 200-meter final, which Felix handily won. Tarmoh failed to qualify for London in the 200, finishing fifth.
The decision for a runoff was made at a meeting among the athletes, their agents, and USATF representatives Sunday morning before the track and field finals at Hayward Field.
Women's 400-meter hurdles. Defending outdoor champion Lashinda Demus won in 53.98 seconds to earn a place on the Olympic team. Georganne Moline was second in 54.33, and T'Erea Brown was third in 54.81 for the other spots.
Dominique Darden, daughter of legendary ex-Norristown High star Tony Darden and a former standout in her own right at Harrisburg High and the University of Miami, finished eighth in 55.89.
Darden, who ripped open her right knee in a motor scooter accident in Florida last year, was happy just to compete.
"This was the first big meet I've run all year," she said. "I had no idea how I'd do. So making finals, I guess, that's pretty good."
Women's 20K race walk. Maria Michta won the race walk in 1 hour, 34 minutes, 53.33 seconds. Miranda Melville was second in 1:34:56.92, and Erin Gray was third in 1:35:40.05.
Because none of the athletes had the Olympic "A" standard of 1:33:30, only Michta earned a spot on the team for the London Games. Michta has the "B" standard of 1:38:00.
Solomiya Login, a former La Salle steeplechase star now competing for the Southeast Pennsylvania Athletic Club, had a tough morning. She finished in 10th place, with a time of 1:50:41.65, after taking a mid-race stop to work out muscle tightness.
Men's 400 hurdles. Michael Tinsley won in 48.33 seconds, and Angelo Taylor was second in 48.57 for a chance to defend his Olympic gold medal at the London Games. Defending Olympic silver medalist Kerron Clement was third in 48.89 for the team's final spot.
Bershawn Jackson, the defending Olympic bronze medalist, finished fourth.
Women's javelin. Brittany Borman won the event with a throw of 201 feet, 9 inches, putting her on the Olympic team. Kara Patterson was second at 196-2, and Kimberly Hamilton finished third with a throw of 190-5.
Hamilton does not have the Olympic "A" standard of 200-1 this season to make the U.S. team for the London Games, so the third spot on the team went to fourth-place finisher, Rachel Yurkovich.
Women's 1,500 meters. Morgan Uceny won her second straight U.S. title with a time of 4 minutes, 4.59 seconds. She will be joined on the U.S. team by Shannon Rowbury, who finished second in 4:05.11, and third-place finisher Jenny Simpson, 4:05.17.
Former Villanova star Nicole Schappert ran 4:13.61 for 10th place.
Women's long jump. Brittney Reese, a two-time world champion, won her fifth straight U.S. title with a leap of 23 feet, 51/2 inches. Chelsea Hayes was at 23-31/2, and Janay DeLoach won the third spot on the U.S. team with a jump of 23-23/4.
Temple assistant coach Shameka Marshall placed eighth with a jump of 21-9.
Men's 1,500 meters. Leo Manzano earned a spot on the U.S. team with a winning time of 3:35.75.
Former University of Oregon Matthew Centrowitz was second in 3:24.84, and college teammate Andrew Wheating was third in 3:36.68 for the final two spots.
Men's 200 meters. Wallace Spearmon won with a time of 19.82 seconds, Maurice Mitchel was second in 20:14, and Isiah Young third in 20:16.
Sprinters Justin Gatlin and Tyson Gay were missing from the field because they decided to pass on the 200 after securing spots on the Olympic team in the 100.
Reigning Olympic 200 bronze medalist Walter Dix didn't run because of a lingering hamstring injury that was apparent in the 100.
Elliott Denman contributed to this article for The Inquirer.