History of Daniel Altmaier in Timeline

By Popular Timelines Editorial Team · Updated: May 6, 2026

Daniel Altmaier is a German professional tennis player. His career-high ATP singles ranking is world No. 44, achieved in January 2026. He is currently the No. 2 ranked German singles player.

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Full Timeline

September 1998: Daniel Altmaier Born

On September 1998, Daniel Altmaier was born. He is a German professional tennis player.

Others born on this day/year

2017: ATP Main Draw Debut

In 2017, Altmaier debuted in the ATP main draw as a qualifier at the Geneva Open, defeating Alexander Ward and Petr Michnev in qualifying rounds, but lost to Sam Querrey in the first round.

2017: First ATP Tour-Level Match Win

In 2017, Daniel Altmaier secured his first ATP tour-level match win as a lucky loser at the Antalya Open, defeating Víctor Estrella Burgos. He then defeated Marsel İlhan to reach the quarterfinals, where he lost to Yūichi Sugita, with both victories decided by a third set tiebreak.

2020: Grand Slam Debut at French Open

In 2020, Altmaier made his Grand Slam debut at the French Open, defeating Feliciano López, Jan-Lennard Struff, and Matteo Berrettini in straight sets before losing to Pablo Carreño Busta in the fourth round.

2020: Longest Match at French Open

In 2020, Lorenzo Giustino against Corentin Moutet had a six hours, 5 minutes win at the French Open. This was the longest match since then in the tournament.

November 2021: Enters Top 100 and Wins Challenger Title

On 15 November 2021, Altmaier made his debut in the top 100 at World No. 98 following the final at the Knoxville Challenger. He then won his third Challenger title for the year at the Puerto Vallarta Open.

2021: First Masters 1000 Win

In October 2021, Daniel Altmaier recorded his first win at a Masters 1000 level on his debut at the BNP Paribas Open, defeating Sam Querrey.

2022: Grand Slam Debuts

In 2022, Daniel Altmaier made his Grand Slam debut at both the Australian Open and Wimbledon Championships.

2023: Withdrawal from Halle Open

In 2023, Daniel Altmaier qualified for the Halle Open as a lucky loser but withdrew due to a hip injury.

2023: French Open Third Round

In 2023, Daniel Altmaier reached the third round of the French Open, defeating Jannik Sinner in a five-set match that lasted 5 hours and 26 minutes. This was the longest match at the tournament since 2020.

2023: US Open Main Draw Win and Paris Masters Third Round

In 2023, Daniel Altmaier won his first main draw match at the US Open. At the 2023 Paris Masters, he reached the third round after a walkover from Taylor Fritz.

2023: Seventh Challenger Title and Madrid Open Quarterfinal

In April 2023, Altmaier claimed his seventh Challenger title at the Sarasota Open. At the 2023 Mutua Madrid Open, he reached the quarterfinals and moved up in the rankings before losing to Borna Ćorić.