https://apnews.com/b9e92bd41a7dd218d942abccc2318079

TOKYO (AP) — The Jamaican sprinter and her Olympic-record time captured everyone's attention. What's under foot, though, might have been a factor when Elaine Thompson-Herah broke a 33-year-old Olympic record in the women's 100 meters.

It's shaping up as a fast track surface at Olympic Stadium. Runners are certainly on track to setting personal, Olympic and possibly even world-record times over the next week at the Tokyo Games.