I was just wondering how any of you guys would handle this situation. I was playing in the semis of a local tournament on clay and in the 2nd set when the other guy was serving I called his ace out. He challenged the call and I couldn't find the spot on the clay. He was so adament about it I gave him the point since I had a tiny bit of doubt that I was 100% correct. On the very next serve I say that he hit the ball wide and again he challenged the point, once again I showed him the spot but wasn't sure whether that was the actual spot the ball landed. After arguing about it for 3-4 minutes we agreed to replay the point. Anyhow, i'm very discuraged because after winning the 1st set I was up 4-1 in the 2nd and this totally blew my concentration and I lost 4-6! Anyone on here had a similar experience?? This is the 1st time something like this has happend to me since college. Let me take that back the last time I played this same guy I had match point and I called his 2nd serve out to win and he challenged the spot and it had landed half out so we played the point over and he won it and the match!! I can't believe this has happend to me twice and ironically to the same guy, what should I do just play it safe and not call balls that I see out in??????