running meets

So  i just came back from my brother and sister's running meets and it was mostly fun when they were running, not the other people. I saw a few of my friends there and i saw 2 of them run. but there was this run where i think it as a 100meter or something but the guy had to shoot the gun about 3 sets of 2 times because the second means to stop. So then they went off and later on they had to do it again. It was crazy but the same people won i think. So it was pretty weir and it was boring waiting for my brother and sister to run. But i got through it.