Did a moonlight sailboat race friday night. Won it too.
Turns out, the acting race committee (which in this case is just another boat racing in the event) had made a poorly announced change to the course and as such we got disqualified.
I've been over the rules for the event, and as far as I can tell, the only power given to them is to choose one of two course options depending on the wind direction--it does not entitle them to add a section of course. They shouldn't be able to do that, because it is difficult to communicate changes to the other boats--literally half of the boats out that night went the same way we went and all were disqualified.
The guys who called for the course change took first among those that weren't disqualified.
It is too late to protest the result, and it doesn't actually matter in the scheme of things (we know we won against the half of the fleet that went our way), but it pisses me off that these jokers got away with it.