Solved

Game Change Final Race Position (stole points)

Sorry to hear this. I think I know why this is happening and we are taking action now as a precaution to prevent this from happening to anyone else. Once we know it has stopped we can investigate your race results and see if we can recover what you saw, although I can't guarantee it.

Basically, we launched a lot of new servers into the system tonight, and it seems like maybe some races have run "twice", once on a new server and once on the old one. You've watched one race on one server, then results for one on another server have overwritten what you saw. That is the theory - so we are taking the old servers out of circulation now and only keeping the new ones to prevent this.