Which female player holds the record for the longest winning streak in Open Era tennis?

Martina Navratilova holds the record for the longest winning streak in Open Era women’s singles tennis.

Navratilova won 74 consecutive singles matches during 1984. The streak began in February and included victories at major events such as the French Open, Wimbledon and the US Open. She also defeated longtime rival Chris Evert in several finals during the run.

The streak ended in the 1984 Australian Open semifinals, when Helena Suková defeated Navratilova. Navratilova still won the Australian Open title that year’s tournament was held late in 1984, but her semifinal loss stopped the unbeaten sequence at 74 matches.

The statistic refers to women’s singles in the Open Era, which began in 1968. It should not be confused with a player’s longest streak on one surface, a season win total or a combined singles-and-doubles record. Navratilova’s 74-match mark is the standard answer for this wording.