Isner and Mahut have finally completed their match!
http://en.wikipedia.org/wiki/2010_Wimble…

1) If one assumes the server wins 80% of the points ( http://www.wimbledon.org/en_GB/scores/st… ), what is the probability that the server wins the game? Note, in tennis, a game is won when a player manages to score four points before the other, winning by two.

2) Given the probability of winning a service game from 1 and service alternates between games, how long is a set expected to last given that you must win by two games?

3) Given this naive probability computation, how unlikely was it that the set reached 70-68?