Daniel Masur

Daniel Masur (; born 6 November 1994 in Bückeburg) is a German professional tennis player. He has a career-high ATP singles ranking of world No. 176, achieved in March 2022 and in doubles of No. 149 achieved in September 2022.

Juniors On the junior tour, Masur has a career high ITF junior ranking of No. 13 achieved in September 2012. Masur was a semifinalist at the 2012 US Open boys' doubles event, partnering Maximilian Marterer.

Professional career 2016–2020: ATP debut and first ATP match win Masur made his ATP main draw debut as a lucky loser at the 2016 German Open in Hamburg in the doubles draw, partnering Cedrik-Marcel Stebe.

He won his first singles match on ATP-level as a qualifier at the 2018 German Open, defeating Maximilian Marterer in the first round.

2021–2025: Major, top 200 and United Cup debuts, Challenger title In March 2021, he won his first ATP Challenger singles title in Biella.

Masur qualified for the first time in his career for a Grand Slam main draw at the 2021 Wimbledon Championships. In November, he won the second 2021 Challenger Eckental title defeating Maxime Cressy. Following a third Challenger final in Bari, Italy he reached the top 200 at No. 183 on 29 November 2021.

Ranked No. 254, Masur was selected as the No. 2 singles player for team Germany at the 2025 United Cup. He replaced Alexander Zverev in the quarterfinals stage, after the world No. 2 pulled out due to injury.

Singles performance timeline

Current through the 2025 Davis Cup Qualifiers first round.

ATP Challenger finals

Singles: 4 (2–2)

Doubles: 14 (11–3)

ITF Futures/World Tennis Tour finals

Singles: 18 (14–4)

Doubles: 29 (21–8)