How long did the longest ever match at Wimbledon go on?

Answer 1

The Isner–Mahut match at the 2010 Wimbledon Championships holds the record for the longest tennis match both in time and games played.
11 h 05 Wimbledon 2010, 1st Round: United States John Isner def. France Nicolas Mahut, 6–4, 3–6, 6–7(7–9), 7–6(7–3), 70–68 (3 days).