Ah but sorry I forgot an important part here, the course was a 4 sided course with only one mark and to tack away I would have been going in totally the wrong direction. Would it have been better to do a 360 and hopefully force him to then tack around the mark, either way I was screwed by a slower boat and really not much that I could do about it, is there any point outside of the mark zone where sportsmanship comes into play ?