But Hooker was fourth and Felix was only fifth in the final. Instead, the three roster spots in that event went to Muna Lee in 10.85, and Torri Edwards and Lauryn Williams, two past world champions who both finished in 10.90.
"I'm definitely disappointed," Felix said. "The whole reason for running the 100 is to make the team. But I can't get too down. I still have the 200 to go."
LSU's Juanita Broaddus, a William Penn graduate, was eliminated Friday in the preliminaries.
Gay tied the fourth-fastest time in the history of the men's dash, despite clearly easing up a tad over his final few strides. Still, that was nothing compared what he did in his opening heat earlier in the day, when Gay came awfully close to a monumental blunder.
After building a big lead, the reigning world champion eased up with about 30 meters left - so much that the rest of the field began to catch him. Gay was forced to accelerate again and he lunged across the finish line in fourth place, good enough to advance.
"The first round I was scared. I almost started crying. I didn't know if I made it," Gay said after bettering the record of 9.79 seconds Greene set in 1999. "This round I felt good."
The performance had to be a big boost of confidence for Gay, who was a distant second in New York on May 31, when Jamaica's Usain Bolt broke the world record by clocking 9.72.
Gay's had to answer plenty of questions about how much of a challenge he'll present at the Beijing Olympics to Bolt and another Jamaican, Asafa Powell. (Bolt beat Powell yesterday at their trials.)
Could Gay challenge Bolt's mark in today's semifinal or final?
"Anything's possible," said Wallace Spearmon, who reached the semifinals by running 10.07. "Tyson's fast."