Wow
The longest professional tennis match, in terms of both time and total games, was the Wimbledon 2010 first-round match between Nicolas Mahut and John Isner on June 22, 23, and 24, 2010. It lasted 183 games and required 11 hours and 5 minutes of playing time. The match also set duration records for:
Longest set by time and games: The fifth set of the match required 138 games played over 8 hours and 11 minutes.
Longest play in a single day: The first 118 games of the fifth set, played on 23 June 2010, lasted 7 hours and 6 minutes. This time is longer than the entire Nelson-Hepner match (below) and all other matches in tennis history.
Most games in a single day: 118, on the 23 June.
http://en.wikipedia.org/wiki/Longest_tennis_match_records
