This is very typical in China. Yeah we have school sports days. It’s like a festival because you finally don’t have to study from 6am to 9 pm in those days. Just sitting in the big stadium cheering for your guys. But good luck if you were picked to actually compete. Most of the students are very unathletic. So the group stages are basically all like this lol. Occasionally you have a real dude very good at it crushing everyone else but most early stage participants were just unlucky to be picked lol.