What was Serena Williams's longest winning streak?

Serena Williams’s longest winning streak was 34 matches, achieved during the 2013 season. It began after a loss to Victoria Azarenka in the final of the 2013 Qatar Total Open and continued through several major tournaments and hard-court events.

Williams opened the streak at the 2013 Miami tournament, defeating Flavia Pennetta in the second round. She then won matches against players including Ayumi Morita, Dominika Cibulková, Li Na, Agnieszka Radwańska, and Maria Sharapova. The run included titles at Miami, Charleston, Madrid, Rome, and the French Open before extending into Wimbledon and the US hard-court season.

The streak ended in the fourth round of the 2013 Wimbledon Championships, where Sabine Lisicki defeated Williams in three sets. That loss stopped a remarkable run but did not prevent Williams from finishing the year as the dominant player on tour.

A common confusion is with Williams’s 33-match major winning streak spanning the 2014 US Open through the 2015 French Open. That was a separate Grand Slam run; her longest overall match-winning streak was 34.