A lot of it has to do with timing the start.
His main rival was junior sailor Joey Gale and they had some great one on one competition.
During the last race Dave got caught on the windward mark's anchor line, fouling it, so he had to do a 360 circle to exonerate himself, before heading to the next mark. He caught up to everyone and still finished third. Congratulations Dave!
And no, I didn't manipulate the scores, even though I am the Sunfish score keeper. ;-)