Rising star Christian Coleman's weekend of disappointment continued on Sunday as he lost the 200m at the US nationals and world championships trials to Ameer Webb.
Coleman, beaten by Olympic silver medallist Justin Gatlin in the 100m Friday, was pipped by one hundredth of a second by Webb who closed quickly to win in 20.09 seconds.
"It's been a long weekend," said Coleman, the year's fastest man at 9.82 seconds in the 100m.
"I felt my legs tighten up near the end, but no excuses.
"It was a pretty successful week, qualifying for the team in two events."
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Co-favorite Noah Lyles's world championship hopes ended when he withdrew from the semi-finals with a hamstring strain.
Upsets also struck in the men's 110m hurdles and women's 200m on the final day of the selection meet for August's world championships in London.
Former American indoor champion Aleec Harris surprised world record holder Aries Merritt in the hurdles, running 13.24 to Merritt's 13.31.
Collegian Deajah Stevens took down Olympic bronze medallist Tori Bowie in the women's 200m, run into a headwind.
Stevens won in 22.30, followed by Kimberlyn Duncan (22.59) and Bowie (22.60), all making the U.S. team.
Olympic gold medallists Dalilah Muhammad and Ryan Crouser provided the brightest moments for established athletes, both claiming 2017's bests.
Muhammad won perhaps the most impressive women's 400m hurdles race ever, blazing 52.64 as three women dipped under 53 seconds in the same race for the first time in history.
"I am feeling amazing," said Muhammad.
Only five women have run faster.
Shamier Little (52.75 and Kori Carter (52.95) trailed Muhammad as six women ran 53.82 or faster, another first.
Crouser delivered the longest shot put in 14 years, 22.65 metres, on his last attempt.
