Novak Đoković is the current World No. 1 and holds an all-time record for most weeks as World No. 1. Đoković began his professional career in 2003. He is the only player to win all of the nine Masters 1000 tournaments. Đoković holds many records, including a 43-match winning streak (2010-11), 31 matches at ATP Masters 1000s (2011) and 30 Grand Slam matches (2015-16). He also won a record-extending 10th Australian Open title 2023 by defeating Greek tennis player Stefanos Tsitsipas. With this victory, Đoković has claimed his 22nd Grand Slam title.
Birth Date 5/22/87