# Sam Weissborn

Tristan-Samuel Weissborn (born 24 October 1991) is an Austrian professional tennis player who specializes in doubles.
Weissborn has been ranked by the Association of Tennis Professionals (ATP) as high as world No. 50 in doubles, which he achieved in July 2023. He also reached his career-high singles ranking of world No. 503, attained in July 2013. Since turning professional, Weissborn has won 20 doubles titles on the ATP Challenger Tour as well as one singles and 23 doubles titles on the ITF Men's World Tennis Tour.

## Professional career
### 2015–2016: ATP debut

Weissborn won his first ATP Challenger title at the 2015 Sparkassen ATP Challenger, partnering Maximilian Neuchrist.
Weissborn made his ATP World Tour doubles debut at the 2016 Swiss Open Gstaad, where he reached with partner Sander Arends the semifinals.

### 2022: Maiden ATP final

He reached his maiden ATP doubles final at the 2022 Córdoba Open with Andrej Martin.

### 2023: Masters debut and first final, Top 50

On his debut at an ATP Masters 1000 tournament, he reached his first semifinal at the 2023 Monte-Carlo Masters with partner Romain Arneodo after upsetting the second-seeded defending champions Rajeev Ram and Joe Salisbury as well as sixth-seeded Lloyd Glasspool and Harri Heliövaara. They reached their first Masters final defeating German duo Kevin Krawietz and Tim Pütz. As a result he moved into the top 60 in the doubles rankings at world No. 59 on 24 April 2023.

## Significant finals
### Masters 1000 finals
#### Doubles: 1 (1 runner-up)

| Outcome | Year | Tournament | Surface | Partner | Opponents | Score |
| Loss | 2023 | Monte-Carlo Masters | Clay | Romain Arneodo | Ivan Dodig Austin Krajicek | 0–6, 6–4, [12–14] |

## ATP career finals
### Doubles: 3 (3 runners-up)

* Legend
* Grand Slam Tournaments (0–0)
* ATP World Tour Finals (0–0)
* ATP World Tour Masters 1000 (0–1)
* ATP World Tour 500 Series (0–0)
* ATP World Tour 250 Series (0–2)
* Titles by surface
* Hard (0–1)
* Clay (0–2)
* Grass (0–0)
* Carpet (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Feb 2022 | Córdoba Open, Argentina | 250 Series | Clay | Andrej Martin | Santiago González Andrés Molteni | 5–7, 3–6 |
| Loss | 0–2 | Apr 2023 | Monte-Carlo Masters, Monaco | Masters 1000 | Clay | Romain Arneodo | Ivan Dodig Austin Krajicek | 0–6, 6–4, [12–14] |
| Loss | 0–3 | Feb 2024 | Open Sud de France, France | 250 Series | Hard (i) | Albano Olivetti | Sadio Doumbia Fabien Reboul | 7–6$^{(7–5)}$, 4–6, [6–10] |

## Challenger and Futures finals
### Singles: 2 (1–1)

* Legend (singles)
* ATP Challenger Tour (0–0)
* ITF Futures Tour (1–1)
* Titles by surface
* Hard (0–0)
* Clay (1–1)
* Grass (0–0)
* Carpet (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Jul 2012 | Austria F2, Kramsach | Futures | Clay | Nicolas Reissig | 3–6, 0–6 |
| Win | 1–1 | May 2013 | Egypt F8, Sharm El Sheikh | Futures | Clay | Karim Hossam | 7–6$^{(7–5)}$, 6–4 |

### Doubles: 75 (43–32)

* Legend (doubles)
* ATP Challenger Tour (20–14)
* ITF Futures Tour (23–18)
* Titles by surface
* Hard (17–13)
* Clay (26–19)
* Grass (0–0)
* Carpet (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Win | 1–0 | Dec 2009 | Dominican Republic F3, Santo Domingo | Futures | Hard | Maximilian Neuchrist | Luis David Martínez Nikolaus Moser | 0–6, 7–6$^{(7–4)}$, [10–8] |
| Loss | 1–1 | Jul 2010 | Austria F2, Kramsach | Futures | Clay | Maximilian Neuchrist | Petr Kovačka Marek Michalička | 1–6, 3–6 |
| Win | 2–1 | Aug 2010 | Austria F3, Bad Waltersdorf | Futures | Clay | Nicolas Reissig | Michal Konečný Radim Urbánek | 6–2, 6–3 |
| Loss | 2–2 | Sep 2010 | Morocco F6, Casablanca | Futures | Clay | Nicolas Reissig | Florian Reynet Maxime Teixeira | 6–1, 5–7, [6–10] |
| Win | 3–2 | Jul 2011 | Austria F2, Kramsach | Futures | Clay | Maximilian Neuchrist | Roman Jebavý Roman Vögeli | 6–3, 6–3 |
| Win | 4–2 | Aug 2011 | Austria F5, Innsbruck | Futures | Clay | Mate Pavić | Paris Gemouchidis Michal Konečný | 7–6$^{(7–3)}$, 6–4 |
| Win | 5–2 | Sep 2011 | Austria F8, St. Pölten | Futures | Clay | Maximilian Neuchrist | Roman Jebavý Michal Pažický | 7–5, 5–7, [11–9] |
| Win | 6–2 | Feb 2012 | Spain F1, Mallorca | Futures | Clay | Kevin Krawietz | Agustín Boje-Ordóñez Pablo Martín-Adalia | 6–2, 6–4 |
| Win | 7–2 | Apr 2012 | Croatia F6, Vrsar | Futures | Clay | Lukas Jastraunig | Krešimir Ritz Joško Topić | 6–4, 4–6, [10–8] |
| Win | 8–2 | Jun 2012 | Slovenia F1, Bled | Futures | Clay | Mislav Hižak | Aljaž Bedene Grega Žemlja | w/o |
| Loss | 8–3 | Aug 2012 | Austria F6, Innsbruck | Futures | Clay | Lukas Jastraunig | Maximilian Neuchrist Mate Pavić | 4–6, 3–6 |
| Win | 9–3 | Aug 2012 | Austria F7, Pörtschach | Futures | Clay | Lukas Jastraunig | Maximilian Neuchrist Mate Pavić | 7–6$^{(7–5)}$, 6–3 |
| Win | 10–3 | Sep 2012 | Austria F8, St. Pölten | Futures | Clay | Lukas Jastraunig | Radoslav Novodomec Michal Pažický | 6–2, 6–2 |
| Loss | 10–4 | Sep 2012 | Austria F9, Vogau | Futures | Clay | Lukas Jastraunig | Ruben Gonzales Blaž Rola | 2–6, 2–6 |
| Loss | 10–5 | Mar 2013 | Croatia F5, Rovinj | Futures | Clay | Nikolaus Moser | Tomislav Brkić Steven Diez | 2–6, 2–6 |
| Win | 11–5 | Apr 2013 | Egypt F3, Sharm El Sheikh | Futures | Clay | Gibril Diarra | Vladimir Ivanov Ivan Nedelko | 7–6$^{(9–7)}$, 3–6, [13–11] |
| Win | 12–5 | Apr 2013 | Egypt F4, Sharm El Sheikh | Futures | Clay | Thomas Statzberger | Lukas Jastraunig David Pamminger | 4–6, 6–4, [10–6] |
| Win | 13–5 | Jul 2013 | Austria F2, Seefeld | Futures | Clay | Lukas Jastraunig | Michal Franek Jan Kunčík | 7–6$^{(7–5)}$, 6–3 |
| Loss | 13–6 | Jul 2013 | Austria F3, Telfs | Futures | Clay | Lukas Jastraunig | Marc Rath Bastian Trinker | 5–7, 6–7$^{(9–11)}$ |
| Win | 14–6 | Jul 2013 | Austria F4, Kramsach | Futures | Clay | Lukas Jastraunig | Or Ram-Harel Igor Smilansky | 2–6, 6–4, [10–5] |
| Loss | 14–7 | Aug 2013 | Austria F8, Pörtschach | Futures | Clay | Lukas Jastraunig | Jaroslav Pospíšil Sebastian Wagner | 2–6, 6–7$^{(4–7)}$ |
| Loss | 14–8 | Oct 2013 | Kuwait F3, Mishref | Futures | Hard | Thomas Statzberger | Lewis Burton Marcus Willis | 2–6, 2–6 |
| Loss | 14–9 | Jun 2014 | Hungary F3, Siófok | Futures | Clay | Viktor Filipenkó | Cristóbal Saavedra Corvalán Ricardo Urzúa Rivera | 1–6, 1–6 |
| Loss | 14–10 | Aug 2014 | Austria F8, Vogau | Futures | Clay | Dmitry Popko | Pascal Brunner Thomas Statzberger | 6–2, 1–6, [10–12] |
| Win | 15–10 | Aug 2014 | Austria F9, Pörtschach | Futures | Clay | Sebastian Bader | Gonçalo Oliveira Daniel Uhlig | 6–4, 7–6$^{(7–3)}$ |
| Loss | 15–11 | Sep 2014 | Austria F10, St. Pölten | Futures | Clay | Sebastian Bader | Filip Doležel Petr Michnev | 7–6$^{(7–4)}$, 4–6, [5–10] |
| Loss | 15–12 | Sep 2014 | Croatia F19, Bol | Futures | Clay | Kirill Dmitriev | Libor Salaba Jan Šátral | 4–6, 1–6 |
| Win | 16–12 | Oct 2014 | Turkey F37, Antalya | Futures | Hard | Janez Semrajc | Kirill Dmitriev Dennis Novak | 6–3, 5–7, [10–2] |
| Loss | 16–13 | Nov 2014 | Turkey F38, Antalya | Futures | Hard | Janez Semrajc | Adrian Obert Paul Woerner | 3–6, 6–1, [8–10] |
| Loss | 16–14 | Nov 2014 | Turkey F40, Antalya | Futures | Hard | Janez Semrajc | Kevin Krawietz Maximilian Marterer | 3–6, 2–6 |
| Win | 17–14 | Nov 2014 | Turkey F41, Antalya | Futures | Hard | Janez Semrajc | Matthias Wunner Lennart Zynga | 6–3, 6–3 |
| Win | 18–14 | Nov 2014 | Turkey F42, Antalya | Futures | Hard | Lucas Miedler | Antoine Bellier Adrian Bodmer | 7–5, 6–1 |
| Loss | 18–15 | Feb 2015 | Turkey F6, Antalya | Futures | Hard | Gleb Sakharov | Ruan Roelofse Tucker Vorster | 3–6, 6–2, [7–10] |
| Win | 19–15 | Feb 2015 | Turkey F7, Antalya | Futures | Hard | Marat Deviatiarov | Ruan Roelofse Tucker Vorster | 7–6$^{(7–5)}$, 6–2 |
| Loss | 19–16 | Mar 2015 | Turkey F8, Antalya | Futures | Hard | Marat Deviatiarov | Ruan Roelofse Tucker Vorster | 7–6$^{(7–5)}$, 6–7$^{(4–7)}$, [10–12] |
| Loss | 19–17 | Apr 2015 | France F8, Angers | Futures | Clay (i) | Sebastian Bader | Jonathan Eysseric Tom Jomby | 3–6, 4–6 |
| Loss | 19–18 | May 2015 | Romania F1, Galați | Futures | Clay | Luca Margaroli | Alexandru-Daniel Carpen Luca George Tatomir | 5–7, 3–6 |
| Win | 20–18 | Jul 2015 | Italy F17, Sassuolo | Futures | Clay | Mohamed Safwat | Alessandro Giannessi Matteo Volante | 4–6, 7–5, [10–8] |
| Win | 21–18 | Aug 2015 | Italy F22, Appiano | Futures | Clay | Maximilian Neuchrist | Wilson Leite Bruno Sant'Anna | 7–5, 4–6, [10–3] |
| Win | 22–18 | Aug 2015 | Italy F23, Este | Futures | Clay | Maximilian Neuchrist | Rafael Matos Marcelo Zormann | 2–6, 6–3, [10–8] |
| Win | 23–18 | Sep 2015 | Austria F10, St. Pölten | Futures | Clay | Lucas Miedler | Pascal Brunner Dennis Novak | 6–3, 6–3 |
| Win | 24–18 | Nov 2015 | Ortisei, Italy | Challenger | Hard (i) | Maximilian Neuchrist | Nikola Mektić Antonio Šančić | 7–6$^{(9–7)}$, 6–3 |
| Win | 25–18 | May 2016 | Ostrava, Czech Republic | Challenger | Clay | Sander Arends | Lukáš Dlouhý Hans Podlipnik Castillo | 7–6$^{(10–8)}$, 6–7$^{(4–7)}$, [10–5] |
| Loss | 25–19 | May 2016 | Rome, Italy | Challenger | Clay | Sander Arends | Bai Yan Li Zhe | 3–6, 6–3, [9–11] |
| Win | 26–19 | May 2016 | Heilbronn, Germany | Challenger | Clay | Sander Arends | Nikola Mektić Antonio Šančić | 6–3, 6–4 |
| Loss | 26–20 | Jun 2016 | Fürth, Germany | Challenger | Clay | Andrej Martin | Facundo Argüello Roberto Maytín | 3–6, 4–6 |
| Win | 27–20 | Feb 2017 | Budapest, Hungary | Challenger | Hard (i) | Dino Marcan | Blaž Kavčič Franko Škugor | 6–3, 3–6, [16–14] |
| Loss | 27–21 | Feb 2017 | Cherbourg, France | Challenger | Hard (i) | Dino Marcan | Roman Jebavý Igor Zelenay | 6–7$^{(4–7)}$, 7–6$^{(7–4)}$, [6–10] |
| Loss | 27–22 | Feb 2017 | Bergamo, Italy | Challenger | Hard (i) | Dino Marcan | Julian Knowle Adil Shamasdin | 3–6, 3–6 |
| Win | 28–22 | Apr 2017 | Anning, China | Challenger | Clay | Dino Marcan | Steven de Waard Blaž Kavčič | 5–7, 6–3, [10–7] |
| Loss | 28–23 | Jun 2017 | Vicenza, Italy | Challenger | Clay | Sekou Bangoura | Gero Kretschmer Alexander Satschko | 4–6, 6–7$^{(4–7)}$ |
| Loss | 28–24 | Jun 2017 | Poprad-Tatry, Slovakia | Challenger | Clay | Luca Margaroli | Mateusz Kowalczyk Andreas Mies | 3–6, 6–7$^{(3–7)}$ |
| Win | 29–24 | Jul 2017 | Prague, Czech Republic | Challenger | Clay | Jan Šátral | Gero Kretschmer Andreas Mies | 3–6, 7–5, [10–3] |
| Loss | 29–25 | Nov 2017 | Brescia, Italy | Challenger | Hard (i) | Luca Margaroli | Sander Arends Sander Gillé | 2–6, 3–6 |
| Win | 30–25 | Jan 2018 | Koblenz, Germany | Challenger | Hard (i) | Romain Arneodo | Sander Arends Antonio Šančić | 6–7$^{(4–7)}$, 7–5, [10–6] |
| Win | 31–25 | Feb 2018 | Cherbourg, France | Challenger | Hard (i) | Romain Arneodo | Antonio Šančić Ken Skupski | 6–3, 1–6, [10–4] |
| Win | 32–25 | Mar 2018 | Saint Brieuc, France | Challenger | Hard (i) | Sander Arends | Luke Bambridge Joe Salisbury | 4–6, 6–1, [10–7] |
| Loss | 32–26 | Sep 2018 | Orléans, France | Challenger | Hard (i) | Yannick Maden | Luke Bambridge Jonny O'Mara | 2–6, 4–6 |
| Win | 33–26 | Jan 2019 | Rennes, France | Challenger | Hard (i) | Sander Arends | David Pel Antonio Šančić | 6–4, 6–4 |
| Loss | 33–27 | Mar 2019 | Pau, France | Challenger | Hard (i) | Sander Arends | Scott Clayton Adil Shamasdin | 6–7$^{(4–7)}$, 7–5, [8–10] |
| Loss | 33–28 | Apr 2019 | Taipei, Taiwan | Challenger | Hard (i) | Sander Arends | Sriram Balaji Jonathan Erlich | 3–6, 2–6 |
| Win | 34–28 | Apr 2019 | Nanchang, China | Challenger | Clay (i) | Sander Arends | Alex Bolt Akira Santillan | 6–2, 6–4 |
| Win | 35–28 | Jan 2020 | Rennes, France | Challenger | Hard (i) | Antonio Sancic | Teymuraz Gabashvili Lukáš Lacko | 7–5, 6–7$^{(5–7)}$, [10–7] |
| Loss | 35–29 | Jan 2020 | Newport Beach, USA | Challenger | Hard | Antonio Sancic | Gonzalo Escobar Ariel Behar | 2–6, 4–6 |
| Win | 36–29 | Oct 2020 | Barcelona, Spain | Challenger | Clay | Szymon Walków | Harri Heliövaara Alex Lawson | 6–1, 4–6, [10–8] |
| Loss | 36–30 | Jun 2021 | Milan, Italy | Challenger | Clay | Dustin Brown | Vít Kopřiva Jiří Lehečka | 4–6, 0–6 |
| Win | 37–30 | Oct 2021 | Lošinj, Croatia | Challenger | Clay | Andrej Martin | Victor Vlad Cornea Ergi Kırkın | 6–1, 7–6$^{(7–5)}$ |
| Win | 38–30 | Nov 2021 | Ortisei, Italy | Challenger | Hard (i) | Antonio Šančić | Alexander Erler Lucas Miedler | 7–6$^{(10–8)}$, 4–6, [10–8] |
| Win | 39–30 | Nov 2021 | Pau, France | Challenger | Hard (i) | Romain Arneodo | Aisam-ul-Haq Qureshi David Vega Hernández | 6–4, 6–2 |
| Win | 40–30 | Dec 2021 | Forli, Italy | Challenger | Hard (i) | Antonio Šančić | Lukáš Rosol Vitaliy Sachko | 7–6$^{(7–4)}$, 4–6, [10–7] |
| Loss | 40–31 | Jan 2022 | Santa Cruz de la Sierra, Bolivia | Challenger | Clay | Andrej Martin | Diego Hidalgo Cristian Rodríguez | 6–4, 3–6, [8–10] |
| Loss | 40–32 | Oct 2022 | Saint-Tropez, France | Challenger | Hard | Romain Arneodo | Dan Added Albano Olivetti | 3–6, 6–3, [10–12] |
| Win | 41–32 | Oct 2022 | Vilnius, Lithuania | Challenger | Hard (i) | Romain Arneodo | Dan Added Théo Arribagé | 6–4, 5–7, [10–5] |
| Win | 42–32 | Jan 2023 | Ottignies-Louvain-la-Neuve, Belgium | Challenger | Hard (i) | Romain Arneodo | Roman Jebavý Adam Pavlásek | 6–4, 6–3 |
| Win | 43–32 | May 2023 | Upper Austria Open, Austria | Challenger | Clay | Romain Arneodo | Constantin Frantzen Hendrik Jebens | 6–4, 6–2 |

## Doubles performance timeline

Key :
| W | F | SF | QF | #R | RR | Q# | DNQ | A | NH |
| Tournament | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | SR | W–L |
| Grand Slam tournaments |||||||||||||||||||
| Australian Open | A | A | A | A | A | A | A | A | A | A | A | A | 1R | A | A | 1R | 0 / 2 | 0–2 |
| French Open | A | A | A | A | A | A | A | A | A | A | A | A | A | | 2R | | 0 / 1 | 1–1 |
| Wimbledon | A | A | A | A | A | A | A | Q1 | 1R | Q1 | A | NH | A | | 2R | | 0 / 2 | 1–2 |
| US Open | A | A | A | A | A | A | A | 2R | A | A | A | A | A | | 1R | | 0 / 2 | 1–2 |
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 1–1 | 0–1 | 0–0 | 0–0 | 0–0 | 0–1 | 0–0 | 2–3 | 0–1 | 0 / 7 | 3–7 |
| Career statistics |||||||||||||||||||
| Titles / Finals | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 1 | 0 / 1 | | 0 / 2 | 0 / 2 |
| Overall win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 3–2 | 0–4 | 1–3 | 2–4 | 0–0 | 1–6 | 3–1 | 14–15 | | 24–35 | 24–35 |
| Year-end ranking | 906 | 611 | 498 | 449 | 400 | 370 | 182 | 95 | 112 | 118 | 103 | 109 | 118 | 110 | 54 | | | |