“We’re not done yet,” exclaimed Sha'Carri Richardson, speaking trackside after the second of her sub-10.80 100m runs at the USATF Golden Games on Sunday (9). Seeing the path the 21-year-old has blazed so far, it’s easy to believe her.

Continuing her comeback in style, Jasmine Camacho-Quinn stormed to a 100m hurdles win in 12.32 (1.7m/s) to move to equal seventh on the world all-time list at the Tom Jones Memorial Invitational in Gainesville, Florida, on Saturday (17).

World leaders Christian Coleman and Shelly-Ann Fraser-Pryce form part of two strong 100m fields at the Prefontaine Classic, part of the IAAF Diamond League, which will take place in Stanford on Sunday (30).

These are the women who have had a better one-day double than Sha’Carri Richardson in the 100m and 200m: Merlene Ottey. That’s it.

A flurry of speedy sprint performances headlined both NCAA Preliminaries as US collegiate athletes attempted to book their spots at next month’s NCAA Championships by placing among the top 12 in their events.