The longest tennis rally lasted how long?

The longest tennis rally lasted over 12 hours. On June 11, 2017, Italians Simone Frediani and Daniele Pecci kept the ball in play for 51,283 strokes in Grosseto, Italy, setting the Guinness World Records mark for the longest tennis rally.

This was a continuous rally challenge rather than a point played in a professional tournament. The players were recreational tennis partners attempting an endurance record, so the feat is very different from the longest rally seen during an elite match. Keeping a ball in play for that long required extraordinary consistency, patience, and concentration rather than simply hitting powerful shots.

A common mix-up is confusing the longest rally with the longest tennis match. John Isner and Nicolas Mahut’s 2010 Wimbledon match lasted 11 hours and 5 minutes across three days, but it contained many separate points. Another related record concerns the longest professional-tennis rally, often listed as a 643-shot exchange lasting about 29 minutes. The overall rally record, however, is measured in hours and exceeds 12 hours.