Longest Winning Streak at Grand Slams

The longest Grand Slam winning streak in the Open Era belongs to Novak Djokovic, with 30 consecutive wins at majors between Wimbledon 2015 and Wimbledon 2016. The run began in the first round of Wimbledon 2015, where Djokovic beat Philipp Kohlschreiber 6-4, 6-4, 6-4, and ended in the third round of Wimbledon 2016, where Sam Querrey defeated him 7-6(6), 6-1, 3-6, 7-6(5). During the streak, Djokovic won Wimbledon 2015, the US Open 2015, the Australian Open 2016 and Roland Garros 2016, completing the non-calendar-year Grand Slam.

Second is Rod Laver, with 29 straight Grand Slam wins from the 1969 Australian Open to Wimbledon 1970. His streak began at the 1969 Australian Open, where he opened with a win over Massimo Di Domenico 6-2, 6-3, 6-3, and ended in the fourth round of Wimbledon 1970, when Roger Taylor beat him 4-6, 6-4, 6-2, 6-1. The run included Laver's 1969 calendar-year Grand Slam.