# Niels Desein

Niels Desein (born 9 June 1987) is a Belgian tennis player playing on the ATP Challenger Tour. He was born in Ghent, Belgium, and currently resides in Wondelgem, Belgium.

## Juniors

Desein reached as high as No. 4 in the combined junior world rankings in May 2005.
Junior Slam results:
Australian Open: - French Open: 1R (2005) Wimbledon: 3R (2004, 2005) US Open: 2R (2004)

## Professional tour

His career-high ATP rankings are world No. 154 in singles in March 2015 and World No. 182 in doubles in August 2009. His favourite surface is clay.
He made his main draw debut on the ATP World Tour at the 2013 Portugal Open as a qualifier. He represented the Belgium Davis Cup team on one occasion in 2015.

### Singles: 47 (27–20)

* Legend
* ATP Challenger (1–0)
* ITF Futures (26–20)
* Finals by surface
* Hard (16–11)
* Clay (10–4)
* Grass (0–1)
* Carpet (1–4)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Jul 2005 | Great Britain F8, Felixstowe | Futures | Grass | Nicolas Tourte | 7–6$^{(7–5)}$, 5–7, 3–6 |
| Win | 1–1 | Jul 2006 | Germany F8, Trier | Futures | Clay | Lukáš Rosol | 2–6, 7–6$^{(7–1)}$, 6–4 |
| Loss | 1–2 | Mar 2007 | Portugal F3, Albufeira | Futures | Hard | Ričardas Berankis | 5–7, 4–6 |
| Win | 2–2 | May 2007 | Romania F1, Bucharest | Futures | Clay | Martin Kližan | 7–6$^{(7–3)}$, 7–6$^{(9–7)}$ |
| Loss | 2–3 | Aug 2007 | Germany F11, Wetzlar | Futures | Clay | Alexander Flock | 4–6, 2–6 |
| Loss | 2–4 | Nov 2007 | Israel F4, Ramat HaSharon | Futures | Hard | Ruben Bemelmans | 3–6, 3–6 |
| Win | 3–4 | Jan 2008 | France F1, Deauville | Futures | Clay | Cătălin-Ionuț Gârd | 6–2, 4–6, 6–0 |
| Loss | 3–5 | Aug 2008 | Senegal F1, Dakar | Futures | Hard | Pierre-Ludovic Duclos | 3–6, 5–7 |
| Win | 4–5 | Aug 2008 | Senegal F2, Dakar | Futures | Hard | Pierre-Ludovic Duclos | 3–3 ret. |
| Loss | 4–6 | Sep 2008 | France F14, Mulhouse | Futures | Hard | Michael Lammer | 7–6$^{(7–4)}$, 5–7, 3–6 |
| Win | 5–6 | Oct 2008 | France F18, Saint-Dizier | Futures | Hard | Vincent Millot | 6–7$^{(1–7)}$, 6–3, 6–1 |
| Win | 6–6 | Oct 2008 | France F19, La Roche-sur-Yon | Futures | Hard | Pavol Červenák | 6–4, 6–1 |
| Win | 7–6 | Jul 2009 | Italy F20, Modena | Futures | Clay | Francesco Aldi | 2–6, 7–5, 6–3 |
| Win | 8–6 | Sep 2009 | France F14, Mulhouse | Futures | Hard | Yannick Mertens | 7–6$^{(7–1)}$, 6–4 |
| Win | 9–6 | Oct 2009 | France F19, La Roche-sur-Yon | Futures | Hard | Baptiste Dupuy | 3–6, 6–4, 7–6$^{(7–2)}$ |
| Win | 10–6 | Nov 2009 | Senegal F1, Dakar | Futures | Hard | Valentin Sanon | 7–6$^{(7–2)}$, 6–3 |
| Win | 11–6 | Nov 2009 | Senegal F2, Dakar | Futures | Hard | Claudio Grassi | 6–2, 6–0 |
| Win | 12–6 | Feb 2010 | Germany F4, Nussloch | Futures | Carpet | Thomas Schoorel | 6–7$^{(2–7)}$, 7–6$^{(7–3)}$, 7–6$^{(8–6)}$ |
| Loss | 12–7 | Mar 2010 | France F4, Lille | Futures | Hard | Ruben Bemelmans | 4–6, 2–6 |
| Loss | 12–8 | Jul 2010 | Spain F23, Palma del Río | Futures | Hard | Ruben Bemelmans | 6–4, 4–6, 6–7$^{(1–7)}$ |
| Loss | 12–9 | Sep 2010 | Netherlands F6, Middelburg | Futures | Clay | Matwé Middelkoop | 6–7$^{(2–7)}$, 2–6 |
| Loss | 12–10 | Feb 2012 | Turkey F5, Antalya | Futures | Hard | Riccardo Ghedin | 6–1, 4–6, 6–7$^{(5–7)}$ |
| Loss | 12–11 | Mar 2012 | Portugal F3, Loulé | Futures | Hard | Dénes Lukács | 4–6, 1–6 |
| Loss | 12–12 | Mar 2012 | France F6, Saint-Raphaël | Futures | Hard | Laurent Rochette | 4–6, 1–6 |
| Loss | 12–13 | Apr 2012 | Greece F1, Heraklion | Futures | Carpet | Yannick Jankovits | 3–6, 5–7 |
| Loss | 12–14 | Apr 2012 | Greece F2, Heraklion | Futures | Carpet | Alexandros Jakupovic | 7–6$^{(11–9)}$, 3–6, 4–6 |
| Win | 13–14 | Jul 2012 | Belgium F1, De Haan | Futures | Clay | Arthur De Greef | 6–2, 4–6, 6–3 |
| Loss | 13–15 | Jul 2012 | Netherlands F4, Middelburg | Futures | Clay | Matwé Middelkoop | 6–4, 2–6, 3–6 |
| Win | 14–15 | Aug 2012 | Belgium F8, Koksijde | Futures | Clay | Juan Sebastián Vivanco | 6–2, 6–0 |
| Win | 15–15 | Sep 2012 | Belgium F10, Damme | Futures | Clay | Joris de Loore | 3–6, 6–2, 7–6$^{(7–4)}$ |
| Loss | 15–16 | Sep 2012 | France F15, Bagnères-de-Bigorre | Futures | Hard | Julien Obry | 4–6, 3–6 |
| Win | 16–16 | Feb 2013 | Portugal F1, Vale do Lobo | Futures | Hard | Pedro Sousa | 7–6$^{(7–3)}$, 6–2 |
| Win | 17–16 | Apr 2013 | France F7, Angers | Futures | Clay | Calvin Hemery | 6–3, 6–2 |
| Loss | 17–17 | Jul 2013 | Netherlands F4, Middelburg | Futures | Clay | Thomas Schoorel | 3–6, 4–6 |
| Win | 18–17 | Sep 2013 | France F16, Plaisir | Futures | Hard | Maxime Authom | 6–4, 6–4 |
| Win | 19–17 | Oct 2013 | Hungary F1, Budapest | Futures | Clay | Gerard Granollers Pujol | 5–7, 6–3, 6–2 |
| Loss | 19–18 | Oct 2013 | Portugal F11, Guimarães | Futures | Hard | Rui Machado | 6–7$^{(4–7)}$, 3–6 |
| Win | 20–18 | Jul 2014 | Belgium F7, Middelkerke | Futures | Hard | Steve Darcis | 6–3, 3–6, 7–6$^{(8–6)}$ |
| Win | 21–18 | Sep 2014 | France F19, Plaisir | Futures | Hard | Josselin Ouanna | 6–1, 7–6$^{(7–4)}$ |
| Win | 22–18 | Oct 2014 | France F21, Nevers | Futures | Hard | Enzo Couacaud | 6–1, 6–7$^{(7–9)}$, 6–2 |
| Win | 23–18 | Feb 2015 | Glasgow, United Kingdom | Challenger | Hard | Ruben Bemelmans | 7–6$^{(7–4)}$, 2–6, 7–6$^{(7–4)}$ |
| Win | 24–18 | Sep 2015 | France F17, Bagnères-de-Bigorre | Futures | Hard | Grégoire Barrère | 7–5, 6–3 |
| Win | 25–18 | Oct 2015 | France F22, Saint-Dizier | Futures | Hard | Peter Kobelt | 4–6, 6–3, 6–4 |
| Loss | 25–19 | Jan 2016 | Germany F3, Nussloch | Futures | Carpet | Nils Langer | 3–6, 4–6 |
| Win | 26–19 | Jun 2016 | Belgium F1, Binche | Futures | Clay | Arthur Rinderknech | 6–2, 6–7$^{(3–7)}$, 6–1 |
| Win | 27–19 | Sep 2017 | France F19, Mulhouse | Futures | Hard | Edward Corrie | 6–3, 4–6, 6–3 |
| Loss | 27–20 | Feb 2018 | Switzerland F2, Bellevue | Futures | Carpet | Ugo Humbert | 7–6$^{(7–2)}$, 6–7$^{(5–7)}$, 3–6 |

### Doubles: 51 (32–19)

* Legend
* ATP Challenger (1–4)
* ITF Futures (31–15)
* Finals by surface
* Hard (14–8)
* Clay (14–9)
* Grass (0–0)
* Carpet (4–2)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Feb 2006 | Israel F1, Ramat HaSharon | Futures | Hard | Dušan Lojda | Antoine Benneteau Frederic Jeanclaude | 6–7$^{(2–7)}$, 6–7$^{(4–7)}$ |
| Loss | 0–2 | Jun 2006 | Tunisia F1, Sousse | Futures | Clay | Dušan Lojda | Mounir El Aarej Walid Jallali | 4–6, 3–6 |
| Win | 1–2 | Aug 2006 | Germany F11, Essen | Futures | Clay | Ruben Bemelmans | Antal van der Duim Boy Westerhof | 1–6, 7–5, 7–5 |
| Win | 2–2 | Jan 2007 | Germany F3, Kaarst | Futures | Carpet | Jeroen Masson | Daniel Brands Ralph Grambow | 6–4, 7–6$^{(7–3)}$ |
| Win | 3–2 | Mar 2007 | Portugal F2, Lagos | Futures | Hard | Pierre-Ludovic Duclos | Murad Inoyatov Dmitri Sitak | 6–3, 6–4 |
| Win | 4–2 | May 2007 | Romania F1, Bucharest | Futures | Clay | Jeroen Masson | Thomas Kromann Martin Pedersen | 6–4, 6–1 |
| Win | 5–2 | Jul 2007 | Netherlands F2, Breda | Futures | Clay | Jeroen Masson | Vladimir Karusevich Nicolás Todero | 6–4, 3–6, 7–6$^{(7–5)}$ |
| Loss | 5–3 | Nov 2007 | Great Britain F21, Redbridge | Futures | Hard | Ruben Bemelmans | Josh Goodall Ken Skupski | 7–5, 6–7$^{(3–7)}$, [5–10] |
| Win | 6–3 | Jan 2008 | France F1, Deauville | Futures | Clay | Alexandre Renard | Philippe de Bonnevie Petar Popović | 6–3, 6–2 |
| Win | 7–3 | Mar 2008 | Morocco F1, Oujda | Futures | Clay | Jeroen Masson | M-A López Jaén J-M Such-Perez | 6–2, 6–4 |
| Win | 8–3 | Jun 2008 | Netherlands F2, Alkmaar | Futures | Clay | Jeroen Masson | Dušan Karol Yannick Mertens | 6–4, 6–7$^{(4–7)}$, [10–6] |
| Loss | 8–4 | Jun 2008 | Netherlands F3, Breda | Futures | Clay | Jeroen Masson | Jesse Huta Galung Matwé Middelkoop | 6–3, 3–6, [8–10] |
| Win | 9–4 | Aug 2008 | Senegal F1, Dakar | Futures | Hard | Pierre-Ludovic Duclos | Benjamin Balleret Philippe de Bonnevie | 7–5, 6–7$^{(3–7)}$, [10–5] |
| Win | 10–4 | Aug 2008 | Senegal F2, Dakar | Futures | Hard | Pierre-Ludovic Duclos | Benjamin Balleret Philippe de Bonnevie | 6–4, 6–4 |
| Win | 11–4 | Aug 2008 | Belgium F2, Koksijde | Futures | Clay | Ruben Bemelmans | Alexandre Folie David Goffin | 7–5, 7–5 |
| Win | 12–4 | Aug 2008 | Italy F28, Piombino | Futures | Hard | Pierre-Ludovic Duclos | Bai Yan Jun-Chao Xu | 6–3, 6–3 |
| Win | 13–4 | Sep 2008 | France F14, Mulhouse | Futures | Hard | Ruben Bemelmans | Dustin Brown Stefan Seifert | 7–6$^{(13–11)}$, 6–3 |
| Loss | 13–5 | Sep 2008 | Grenoble, France | Challenger | Hard | Dick Norman | Martin Fischer Philipp Oswald | 7–6$^{(7–5)}$, 5–7, [7–10] |
| Win | 14–5 | Oct 2008 | France F18, Saint-Dizier | Futures | Hard | Ruben Bemelmans | Guillermo Alcaide Nikolai Nesterov | 6–4, 3–6, [10–6] |
| Loss | 14–6 | Jul 2009 | San Benedetto, Italy | Challenger | Clay | Stéphane Robert | Stefano Ianni Cristian Villagrán | 6–7$^{(3–7)}$, 6–1, [6–10] |
| Win | 15–6 | Jul 2009 | Italy F20, Modena | Futures | Clay | Yannick Mertens | Alessandro Giannessi Filippo Leonardi | 6–2, 6–1 |
| Loss | 15–7 | Sep 2009 | St. Remy, France | Challenger | Hard | Ruben Bemelmans | Jiří Krkoška Lukáš Lacko | 1–6, 6–3, [3–10] |
| Win | 16–7 | Oct 2009 | France F19, La Roche-sur-Yon | Futures | Hard | Pierre-Ludovic Duclos | Fabrice Martin Adil Shamasdin | 7–6$^{(10–8)}$, 1–6, [10–5] |
| Win | 17–7 | Nov 2009 | Senegal F2, Dakar | Futures | Hard | John Paul Fruttero | Philip Barlow Tony Holzinger | 6–3, 6–2 |
| Win | 18–7 | Mar 2010 | France F4, Lille | Futures | Hard | Ruben Bemelmans | Izak van der Merwe Raven Klaasen | 7–6$^{(7–4)}$, 6–3 |
| Loss | 18–8 | Oct 2010 | Nigeria F1, Lagos | Futures | Hard | Laurent Rochette | Amir Weintraub Boy Westerhof | walkover |
| Win | 19–8 | Mar 2012 | Portugal F3, Loulé | Futures | Hard | Jeroen Masson | G Gomez-Diaz A Vivanco-Guzman | 7–6$^{(7–3)}$, 6–3 |
| Win | 20–8 | Jun 2012 | Morocco F2, Rabat | Futures | Clay | Alexandre Penaud | Kalle Averfalk Robin Olin | 6–1, 2–6, [13–11] |
| Loss | 20–9 | Jul 2012 | Tampere, Finland | Challenger | Clay | André Ghem | Michael Linzer Gerald Melzer | 1–6, 6–7$^{(3–7)}$ |
| Loss | 20–10 | Aug 2012 | Belgium F6, Ostend | Futures | Clay | James Junior Storme | Joris de Loore Juan Carlos Sáez | 0–6, 4–6 |
| Win | 21–10 | Sep 2012 | Belgium F10, Damme | Futures | Clay | James Junior Storme | Joris de Loore Yannis Baltogiannis | 3–6, 6–2, [10–3] |
| Loss | 21–11 | Apr 2013 | France F7, Angers | Futures | Clay | Tim Pütz | Ivan Bjelica Miljan Zekić | 3–6, 4–6 |
| Win | 22–11 | Apr 2013 | France F8, Ajaccio | Futures | Clay | Yannick Mertens | Daniel Smethurst Alexander Ward | 6–2, 6–2 |
| Win | 23–11 | Aug 2013 | Belgium F7, Ostend | Futures | Clay | Kimmer Coppejans | Sander Gillé Roger Ordeig | 6–2, 6–3 |
| Loss | 23–12 | Oct 2013 | Hungary F1, Budapest | Futures | Clay | Peter Torebko | Piotr Gadomski Błażej Koniusz | 3–6, 3–6 |
| Loss | 23–13 | Mar 2014 | France F6, Poitiers | Futures | Hard | Yannick Mertens | Isak Arvidsson Markus Eriksson | walkover |
| Win | 24–13 | Nov 2014 | Eckental, Germany | Challenger | Carpet | Ruben Bemelmans | Andreas Beck Philipp Petzschner | 6–3, 4–6, [10–8] |
| Loss | 24–14 | Nov 2015 | Czech Republic F7, Jablonec nad Nisou | Futures | Carpet | Libor Salaba | Sander Arends Adam Majchrowicz | 3–6, 4–6 |
| Loss | 24–15 | Jan 2016 | Germany F3, Nussloch | Futures | Carpet | Uladzimir Ignatik | Johannes Härteis Kevin Krawietz | 7–6$^{(7–5)}$, 4–6, [8–10] |
| Win | 25–15 | Feb 2016 | Switzerland F1, Nussloch | Futures | Carpet | Denis Matsukevich | Sebastien Boltz Grégoire Jacq | 6–0, 6–4 |
| Loss | 25–16 | Jun 2016 | Spain F16, Huelva | Futures | Clay | Lamine Ouahab | Ivan Arenas-Gualda David Vega Hernández | 4–6, 2–6 |
| Win | 26–16 | Feb 2017 | Great Britain F1, Glasgow | Futures | Hard | Mick Lescure | Farris Fathi Gosea Tim Kopinski | 4–6, 6–4, [10–7] |
| Win | 27–16 | Mar 2017 | France F4, Lille | Futures | Hard | David Guez | Samuel Bensoussan Yanais Laurent | 6–1, 6–2 |
| Loss | 27–17 | Mar 2017 | France F5, Toulouse | Futures | Hard | Yannick Jankovits | Fabien Reboul Thai-Son Kwiatkowski | 3–6, 6–7$^{(4–7)}$ |
| Loss | 27–18 | Oct 2017 | Portugal F20, Oliveira de Azeméis | Futures | Hard | Yannick Jankovits | Francisco Cabral Nuno Deus | 6–3, 3–6, [8–10] |
| Win | 28–18 | Jan 2018 | France F1, Bagnoles-de-l'Orne | Futures | Clay | Boy Westerhof | Romain Arneodo Grégoire Jacq | 4–6, 6–3, [10–8] |
| Win | 29–18 | Feb 2018 | Switzerland F2, Bellevue | Futures | Carpet | Albano Olivetti | Charlie Emhardt Josh Hagar | 6–3, 6–1 |
| Win | 30–18 | Apr 2018 | Portugal F8, Cascais | Futures | Clay | Boy Westerhof | Germain Gigounon Tristan Lamasine | 7–6$^{(7–4)}$, 6–2 |
| Loss | 30–19 | Aug 2018 | Belgium F8, Koksijde | Futures | Clay | Germain Gigounon | Michael Geerts Matias Zukas | 1–6, 1–6 |
| Win | 31–19 | Sep 2018 | France F16, Bagnères-de-Bigorre | Futures | Hard | Yannick Mertens | Albano Olivetti Dan Added | 6–7$^{(7–9)}$, 7–5, [10–5] |
| Win | 32–19 | Feb 2019 | M15 Grenoble, France | World Tennis Tour | Hard | Yannick Mertens | Hugo Voljacques Dan Added | 7–6$^{(9–7)}$, 6–3 |

## Performance timeline

Key :
| W | F | SF | QF | #R | RR | Q# | DNQ | A | NH |

### Singles

| Tournament | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | SR | W–L | Win % |
| Grand Slam tournaments ||||||||||||
| Australian Open | Q2 | A | A | A | Q1 | Q2 | Q1 | Q3 | 0 / 0 | 0–0 | – |
| French Open | Q1 | Q1 | A | A | Q1 | Q2 | Q1 | A | 0 / 0 | 0–0 | – |
| Wimbledon | A | Q1 | A | A | Q1 | Q1 | Q1 | A | 0 / 0 | 0–0 | 0% |
| US Open | Q1 | Q1 | A | A | Q1 | 1R | Q1 | A | 0 / 1 | 0–1 | 0% |
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–1 | 0–0 | 0–0 | 0 / 1 | 0–1 | 0% |
| ATP Tour Masters 1000 ||||||||||||
| Monte Carlo | A | A | A | A | A | A | Q1 | A | 0 / 0 | 0–0 | – |
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0 / 0 | 0–0 | – |

## Personal life

Desein is married to Belgian lawyer Charlotte Verkeyn who was elected as a member of parliament in 2024. They have a son.