Nethaneel Mitchell-Blake ran a superb 9.99/20.09 100m and 200m double, finishing second each time to NCAA indoor 60m and 200m champion Christian Coleman’s 9.97 and 19.98.
After setting a 10.07 100m PB in his heat, Mitchell-Blake’s 100m time in the final made him the eighth Briton to legally break the 10-second barrier and both his performances were easily world qualifying standards.
He becomes the second Brit after Adam Gemili to achieve sub-10 second 100m and sub-20 second 200m PBs.
He also contributed a leg to LSU’s 38.71 sprint relay victory.
With his performances, Coleman became the eighth athlete to have ever achieved a one-day sub-10/20 double.
Fred Kerley won the 400m in 44.30 after an earlier world-leading 44.09 in his heat.