Daniel Altmaier’s Biography
| Attribute | Detail |
| Name | Daniel Altmaier |
| Nickname | N/A |
| Date of Birth | September 12, 1998 |
| Age | 26 years |
| College | N/A |
| Nationality | German |
| Height | 6’2″ (188 cm) |
| Turned Pro | 2014 |
| Net Worth | $1 million |
| Prize Money | $2,215,864 |
| Girlfriend | Paula Nieto |
| Relationship Status | In a relationship |
| Children | N/A |
| Instagram Profile | @daniel.altmaier |
Daniel Altmaier is a German professional tennis player known for his powerful one-handed backhand and his resilience on the court. He has steadily climbed the ATP rankings since turning pro, earning respect for his work ethic and notable victories.
Early Career
Daniel Altmaier began playing tennis at the age of seven in his hometown of Kempen, Germany. He turned professional in 2014 and quickly made a name for himself on the junior and Challenger circuits. His first ATP main draw appearance came in 2017 at the Geneva Open, and he achieved his first main draw victory at the Antalya Open the same year.
Professional Career
Altmaier’s breakthrough came at the 2020 French Open, where he stunned the tennis world by reaching the fourth round on his Grand Slam debut, defeating top-30 and top-10 players along the way. Despite injuries that temporarily slowed his progress, he broke into the ATP top 100 in 2021 and reached his career-high ranking of No. 47 in October 2023.
In 2023, he made headlines by defeating Jannik Sinner at Roland Garros in a marathon five-set match and also notched wins over top players like Andrey Rublev and Alexander Zverev. Altmaier is recognized for his gritty performances, especially on clay, and continues to be a formidable presence on the ATP Tour.
Girlfriend
Daniel Altmaier is currently in a relationship with Paula Nieto. The couple has been together for several years, and Paula is often seen supporting him at matches. As of now, they do not have any children.
Daniel Altmaier’s Net Worth Details
As of 2025, Daniel Altmaier’s net worth is estimated to be around $1 million. His earnings come from prize money, endorsements, and sponsorships, reflecting his steady career growth and presence in professional tennis.
Prize Money
| Year | Prize Money (USD) | Win-Loss (Singles) | Titles |
| 2023 | $980,405 | 14-22 | 0 |
| 2022 | $531,922 | 5-21 | 0 |
| 2021 | $200,041 | 7-8 | 0 |
| 2020 | $264,671 | 3-3 | 0 |
| 2019 | $41,650 | 0-1 | 0 |
| 2018 | $7,893 | 0-0 | 0 |
| 2017 | $54,987 | 2-3 | 0 |
| Career Total | $2,215,864 | – | 0 |
Endorsements
- Yonex (racquets, apparel, shoes)
- Adidas (previously for apparel and shoes)
- Wilson (previously for racquets)
- Vitamin Well (beverage brand)
Career Records
| Opponent | Head-to-Head Record | Notable Match/Tournament |
| Jannik Sinner | 1-1 | 2023 French Open, Altmaier won in 5 sets |
| Andrey Rublev | 1-0 | 2023 Madrid Open, Altmaier won |
| Alexander Zverev | 1-2 | 2024 Acapulco, Altmaier won |
| Matteo Berrettini | 1-0 | 2020 French Open, Altmaier won |
| Daniil Medvedev | 0-1 | ATP Tour match, Medvedev won |
| Jaume Munar | 1-0 | 2023 Madrid Open, Altmaier won |
| Pablo Carreño Busta | 0-1 | 2020 French Open, Carreño Busta won |
| Borna Ćorić | 0-1 | 2023 Madrid Open, Ćorić won |
| Jan-Lennard Struff | 1-0 | 2020 French Open, Altmaier won |
| Oscar Otte | 1-0 | 2023 Madrid Open, Altmaier won |
FAQs
1. Who is Daniel Altmaier?
Daniel Altmaier is a professional German tennis player known for his aggressive baseline play and tactical intelligence. He has competed on the ATP Tour since 2014 and reached a career-high singles ranking of world No. 47.
2. When and where was Daniel Altmaier born?
Daniel Altmaier was born on September 12, 1998, in Kempen, Germany.
3. What is Daniel Altmaier’s playing style?
Altmaier is recognized for his aggressive baseline game, powerful serve, and one-handed backhand. He excels on clay courts and is known for his ability to dominate rallies and adapt tactically during matches.
4. What are Daniel Altmaier’s career highlights?
His major breakthroughs include reaching the fourth round at the 2020 French Open and the quarterfinals at the 2023 Madrid Open. He also achieved a notable five-set victory over Jannik Sinner at the 2023 French Open.
5. What is Daniel Altmaier’s highest ATP ranking?
His highest ATP singles ranking is No. 47, achieved in October 2023.
6. Has Daniel Altmaier won any ATP titles?
Daniel Altmaier has not won an ATP singles title but has claimed multiple ATP Challenger Tour titles and has several deep runs in ATP and Grand Slam tournaments.
7. What notable injuries has Daniel Altmaier faced?
Altmaier has dealt with shoulder and hip injuries that have interrupted his career. He suffered a significant hip injury during Wimbledon but managed to continue and win the match.
8. What are Daniel Altmaier’s best Grand Slam results?
His best Grand Slam result is reaching the fourth round at the 2020 French Open. He has also made the third round at the French Open in 2023 and has competed in all four Grand Slam tournaments.
9. Who are Daniel Altmaier’s tennis idols?
Growing up, Altmaier idolized Roger Federer and Stan Wawrinka, both known for their elegant playing styles and success on the ATP Tour.
10. What is Daniel Altmaier’s current ranking and recent form?
As of mid-2025, Altmaier is ranked inside the top 100 and continues to compete regularly on the ATP Tour, with recent victories and consistent performances in both ATP and Challenger events.