Best I've ever played was a 40 or 41 (can't remember unfortunatley) doing 9 holes, after my first day of school senior year (high school). As luck would have it, I was having surgery on my left arm about 5 or 6 hours later, as I absent mindedly braced my self against a window. I think I went out one more time that year and played one-handed, that was actually quite fun. Just used a PW every shot with my right arm...probably shot in the 70s through 9. Anyway, I haven't had much time to golf since, so I've never really gotten back to that level.