Yannick Hanfmann (born 13 November 1991) is a German professional tennis player. He has a career-high ATP singles ranking of world No. 92, first achieved in May 2021. He is known for his powerful serves (up to 143 mph) and groundstrokes.
Hanfmann played college tennis at the
University of Southern California.
He is hearing-impaired, having been so since birth.
2017: First career ATP final
Hanfmann made his ATP main draw debut at the
2017 BMW Open after defeating Arthur De Greef and Uladzimir Ignatik in the qualifying rounds. He, ranked world No. 273, then upset both  Gerald Melzer and Thomaz Bellucci to reach the quarterfinals, where he lost to second-seed  Roberto Bautista Agut.
2017 Swiss Open Gstaad, Hanfmann made a sensational run to the final after defeating Facundo Bagnis, third seed and defending champion Feliciano López, eighth seed João Sousa and sixth seed Robin Haase, again as a qualifier. In his semifinal victory over Haase he saved four match points. He lost to  Fabio Fognini in the final.
2018-2019: Grand Slam debut at US and French Open, top 100
He reached the top 100 at World No. 99 on 16 July 2018 following his Challenger title in Braunschweig, Germany.
2020-2021: Second ATP final, Australian Open & Wimbledon & Miami debuts, top-10 win
Hanfmann reached his second career
ATP Tour final at the 2020 Generali Open Kitzbühel in Austria, but lost that final in straight sets to Serbian Miomir Kecmanovi?.
He recorded his maiden top-10 win against
Gaël Monfils in the first round at the 2020 Hamburg European Open in Germany.
He made his debut at a Masters 1000 level at the
2021 Miami Open where he defeated Steve Johnson (tennis).
2022: First Major win, ATP semifinal , out of top 100
2022 Australian Open he won his first match at a Grand Slam defeating wildcard Thanasi Kokkinakis.
He skipped the clay season in Europe and was unable to qualify for the French Open and Wimbledon and as a result his ranking dropped to No. 152 on 18 July 2022.
Following Wimbledon he reached the round of 16 at the
2022 Swiss Open Gstaad as a qualifier.
Next at the 2022 Generali Open Kitzbühel he reached his fourth ATP semifinal overall and second at this tournament defeating Dominic Thiem for one of his biggest wins in his career. 
Singles performance timeline
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (P#) preliminary round; (DNQ) did not qualify; (A) absent; (Z#) Davis/Fed Cup Zonal Group (with number indication) or (PO) play-off; (G) gold, (S) silver or (B) bronze Olympic/Paralympic medal; (NMS) not a Masters tournament; (NTI) not a Tier I tournament; (P) postponed; (NH) not held; (SR) strike rate (events won / competed); (W-L) win-loss record.
To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player's participation has ended.
Current through the
2023 Australian Open.
ATP career finals
Singles: 2 (2 runners-up)
Grand Slam Tournaments (0-0)
ATP World Tour Finals (0-0)
ATP World Tour Masters 1000 (0-0)
ATP World Tour 500 Series (0-0)
ATP World Tour 250 Series (0-2)
Finals by surface
ATP Challenger and ITF Futures finals
Singles: 17 (11 titles, 6 runners-up)
ATP Challenger (6-3)
ITF Futures (5-3)
Finals by surface
Gavin van Peperzeel
6-7 (4-7), 6-3, 1-6
7-6 (7-5), 6-1
6-2, 1-6, 3-6
6-4, 3-6, 7-5
Roberto Cid Subervi
7-6 (7-3), 4-6, 6-2
6-2, 3-6, 6-3
2-6, 6-4, 7-5
Bernabé Zapata Miralles
Rio de Janeiro, Brazil
6-4, 4-6, 3-6
Doubles: 5 (4 titles, 1 runner-up)
ATP Challenger (2-0)
ITF Futures (2-1)
Finals by surface
Alejandro Moreno Figueroa José Pereira
6-7 (2-7), 7-6 (7-3), [10-8]
Sander Arends Adam Majchrowicz
USA F1, Los Angeles
Luke Bambridge Joe Salisbury
3-6, 6-4, [10-8]
Panama City, Panama
Nathan Pasha Roberto Quiroz
7-6 (7-4), 6-4
Mexico City, Mexico
Luke Bambridge Jonny O'Mara
6-2, 7-6 (7-3)
Record against top 10 players
Hanfmann's match record against players who have been ranked in the top 10, with those who have been No. 1 in boldface. Only ATP Tour main draw matches are considered.
* As of 29 July 2022.
Wins over top 10 players
He has a 1-3 (25.0%) record against players who were, at the time the match was played, ranked in the top 10.