We are underway at the track and currently in the midst of almost four hours of heats of the high school boys 4×400. As they aim to qualify for the championship later today, you can track the ranked list here.

The weather forecast is excellent so it’s not too late to get out to Franklin Field. Usain Bolt—perhaps you’ve heard of him?—runs in the USA vs The World 4×100 at 2:30pm. (Tentative line-ups for all of the USA vs The World races can be found here.)

Can’t make it to the meet? Watch live streaming video of the races courtesy of Flotrack or tune in Saturday night to ESPN2 at 8pm/ET for two hours of USA vs The World coverage.