Engine caught fire but all was fine. Happens all the time, the dirt is watered down, emergency staff right off to the side. The derby goes on for 4 hours, I think? I left early but could hear it until 11pm from my house. Then my neighbor brought home the logs on the track at like 12am with his truck to store in his field until next year. He then stacked the logs up so my mom could reach some of the higher blackberry bushes on his property so she could pick more berries (and I'm going to be eating blackberry pies until New Year's now...)
Yep lots of safety measures. My few of my family help out at them and there was firetrucks, ambulances, the audience is seated above in the grandstand with a sizable gap between them and the arena, emergency crew already on the ground and eyes everywhere.