Thanks guys!
I didn't mention it because I didn't want to jinx myself, but it was the first day of the Captain's weekend. I had an 8 shot lead over the following pack.
Playing off the same handicap I managed to play as well again until the last few holes when I kind of over-relaxed because I knew nobody could catch me. Plus it was hot and I was knackered after concentrating so hard to get the job done.
23-15-38. Won by 10 points.
Not classed as a major, but will get my name on another board.