Even in racing, S trumps P. Crossing during a race will be less than 2-3' as long as both boats do not change course. Don't know why the race boat headed up, but you were the stand on vessel. That being said, racers don't like it when the gun goes off and a flying scot is 15' past the startline drifting at 2 knts. If its obvious they're racing, avoid the course, if not, I'd stay on stbd.
Merit 25 # 764 "Audrey"