This is my go-to every year, then cancel after the bowl games. Lather, rinse, repeat annually, unless the B-Ball team is doing well, then I wait to cancel.
Here's an interview with Bo where he discusses the run he did before going to track practice, with Harvey Glance as the track coach, and says the 4.13 was electronically timed.
https://www.espn.com/video/clip/_/id/14869826
Bo was also in 5 events at the state meet (1981) and won 4 out of the five. The only reason he didn't win the last event was because it was a relay and it was a team effort rather than an individual event. Why was he in 5 events? That's all the AHSAA would allow anyone to compete in. Otherwise he would have participated in more.