Christian Coleman set a championship record as he claimed gold in the 60m race at the World Indoor Athletics Championships in Birmingham.
Coleman, 21, ran the race in just 6.37 seconds in the final on Saturday, a time which is just 0.03 seconds slower than the world record he set in February.
China's Su Bingtian finished second to Coleman clocking in at 6.42 seconds while U.S. sprinter Ronnie Baker came in third with a time of 6.44.
"You're never used to that feeling of winning," Coleman told ESPN after the race. "This year I didn't really come in trying to chase a world record.
"I'm excited for outdoor. I don't really like to put a limit on it but we will see what happens.
"I think I have a pretty good chance to [lead the sport now Bolt's retired] but there's so many guys that have a lot of talent so I need to keep working and stay on top of my game."
Elsewhere on Saturday, the men's 800 metres saw controversy as USA's Drew Windle was eventually awarded silver after being disqualified and then reinstated. Confirmation came a full 85 minutes after the end of the race, with Great Britain's Elliot Giles momentarily elevated to bronze, only to then be moved back to fourth.
It was a confusing episode following Windle's remarkable charge to silver having made up the ground from fifth in the straight. His late surge saw Great Britain's Giles drop out of the medals on his home turf with Poland's Adam Kszczot taking gold and Spain's Saul Ordonez bronze.
But then confusion kicked in as Windle was shown as having been disqualified on the stadium information system, with Giles elevated to bronze. Clarification later came that it was for a violation of rule 162.3(b) for 'jostling or obstruction', seemingly with Windle obstructing Giles. The USATF appealed the decision and while officials from both nations were with the officials, both Giles and Windle had walked to the presentation. And then, over an hour later, the original result stood.
The controversy and clarifications continued in the men's 400 final with original winner Oscar Husillos and second-placed Luguelin Santos both disqualified. Pavel Maslak, from Czech Republic, was elevated to gold.
Maslak claimed the top prize with a time of 45.47 seconds. Michel Cherry secured the silver medal with a time of 45.84. Courtney Okolo won gold in the women's version with a personal best time of 50.55 seconds.
In the women's 1500 metres, Ethiopia's Genzebe Dibaba won gold while Great Britain's Laura Muir took silver.
Muir, who claimed 3000m bronze on Thursday, finished behind Dibaba who claimed a double after also winning the 3,000m.
Muir said trackside: "I just got a taste of it after the 3,000. I just ran my socks off. I just thought 'stay with them, be controlled' and I came off with silver this time."
The British athlete will miss next month's Commonwealth Games as she focuses on her final exams but will now be a marked woman at the European Championships in Berlin in August.
Will Claye claimed gold in the men's triple jump with a score of 17.43 with Brazil's Almir Dos Santos finishing second with a personal best 17.41 and Nelson Evora in third with a score of 17.40.
U.S. claimed a 1-2 in the women's 60m hurdles with Kendra Harrison pipping Christina Manning to the gold with a time of 7.70 seconds. Manning ran the race in 7.79.
PA Sport contributed to this report.