# Arthur De Greef (tennis)

Arthur De Greef (Dutch pronunciation:; born 27 March 1992) is a former Belgian tennis player. De Greef has a career-high ATP singles ranking of No. 113, achieved on 19 June 2017 and has a career high ATP doubles ranking of No. 597 achieved on 4 March 2013. De Greef made his ATP main draw singles debut at the 2015 Grand Prix Hassan II where he qualified for the main draw and defeated the 8th seed Diego Schwartzman in the first round.
In May 2021, De Greef was provisionally suspended for match-fixing by ITIA. De Greef was criminally convicted of fraud and working for a criminal organization by the Belgian courts in 2023, refusing to cooperate with interviews. The ITIA subsequently banned him from professional tennis for three years and 9 months, and he was also fined $45,000 ($31,500 suspended).

## Challenger and Futures finals
### Singles: 25 (12–13)

* Legend (singles)
* ATP Challenger Tour (2–5)
* ITF Futures Tour (10–8)
* Titles by surface
* Hard (0–2)
* Clay (12–10)
* Grass (0–0)
* Carpet (0–1)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Oct 2009 | Greece F2, Paros | Futures | Carpet | Claudio Grassi | 5–7, 4–6 |
| Loss | 0–2 | Apr 2011 | Great Britain F5, Bournemouth | Futures | Clay | Enrico Burzi | 6–7$^{(2–7)}$, 5–7 |
| Loss | 0–3 | Jul 2012 | Belgium F1, De Haan | Futures | Clay | Niels Desein | 2–6, 6–4, 3–6 |
| Win | 1–3 | Jul 2012 | Armenia F1, Yerevan | Futures | Clay | Nikoloz Basilashvili | 6–0, 6–1 |
| Win | 2–3 | Aug 2012 | Latvia F1, Jūrmala | Futures | Clay | Andis Juška | 6–3, 1–0 ret. |
| Loss | 2–4 | Nov 2012 | Turkey F45, Antalya | Futures | Hard | Aldin Šetkić | 2–6, 0–1 ret. |
| Loss | 2–5 | Jan 2013 | USA F3, Weston | Futures | Clay | Bjorn Fratangelo | 4–6, 6–3, 0–6 |
| Win | 3–5 | Feb 2013 | USA F4, Palm Coast | Futures | Clay | Bjorn Fratangelo | 6–2, 6–3 |
| Loss | 3–6 | Mar 2014 | Italy F5, Santa Margherita di Pula | Futures | Clay | Adam Pavlásek | 3–6, 3–6 |
| Win | 4–6 | Apr 2014 | Colombia F1, Pereira | Futures | Clay | Fabiano de Paula | 6–2, 6–3 |
| Loss | 4–7 | Apr 2014 | Colombia F2, Pereira | Futures | Clay | Nicolás Barrientos | 6–4, 3–6, 2–6 |
| Win | 5–7 | May 2014 | Spain F9, Valldoreix | Futures | Clay | Juan-Samuel Arauzo-Martínez | 7–6$^{(7–2)}$, 6–3 |
| Win | 6–7 | Jul 2014 | Spain F18, Gandia | Futures | Clay | Ramkumar Ramanathan | 6–4, 4–6, 6–3 |
| Loss | 6–8 | Feb 2015 | Tunisia F5, El Kantaoui | Futures | Hard | Mathias Bourgue | 6–2, 4–6, 6–7$^{(6–8)}$ |
| Win | 7–8 | Sep 2015 | Spain F30, Sevilla | Futures | Clay | Rafael Camilo | 7–6$^{(7–4)}$, 7–6$^{(7–5)}$ |
| Win | 8–8 | Oct 2015 | Italy F29, Santa Margherita di Pula | Futures | Clay | Antonio Massara | 6–4, 6–4 |
| Win | 9–8 | Oct 2015 | Portugal F13, Porto | Futures | Clay | João Domingues | 6–4, 6–0 |
| Loss | 9–9 | Jan 2016 | Buenos Aires, Argentina | Challenger | Clay | Facundo Bagnis | 3–6, 2–6 |
| Win | 10–9 | Mar 2016 | Tunisia F10, Hammamet | Futures | Clay | Pedro Sousa | 1–6, 6–1, 6–2 |
| Loss | 10–10 | Apr 2016 | Napoli, Italy | Challenger | Clay | Jozef Kovalík | 3–6, 2–6 |
| Win | 11–10 | Aug 2016 | Liberec, Czech Republic | Challenger | Clay | Steve Darcis | 7–6$^{(7–4)}$, 6–3 |
| Loss | 11–11 | Nov 2016 | Guayaquil, Ecuador | Challenger | Clay | Nicolás Kicker | 3–6, 2–6 |
| Win | 12–11 | May 2018 | Ostrava, Czech Republic | Challenger | Clay | Nino Serdarušić | 4–6, 6–4, 6–2 |
| Loss | 12–12 | Jun 2018 | Poprad-Tatry, Slovakia | Challenger | Clay | Jozef Kovalík | 4–6, 0–6 |
| Loss | 12–13 | May 2019 | Heilbronn, Germany | Challenger | Clay | Filip Krajinović | 3–6, 1–6 |

### Doubles: 4 (3–1)

* Legend (doubles)
* ATP Challenger Tour (0–0)
* ITF Futures Tour (3–1)
* Titles by surface
* Hard (1–0)
* Clay (2–0)
* Grass (0–0)
* Carpet (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Mar 2012 | Great Britain F5, Bath | Futures | Hard (i) | Yannik Reuter | Lewis Burton Edward Corrie | 3–6, 4–6 |
| Win | 1–1 | Apr 2012 | Great Britain F6, Bournemouth | Futures | Clay | Jérôme Inzerillo | Keelan Oakley Matthew Short | 3–6, 6–1, [10–8] |
| Win | 2–1 | May 2012 | Great Britain F7, Edinburgh | Futures | Clay | Jérôme Inzerillo | Gleb Sakharov Alexandre Sidorenko | 7–6$^{(7–5)}$, 3–6, [10–8] |
| Win | 3–1 | Nov 2012 | Turkey F44, Antalya | Futures | Hard | Julien Cagnina | Michael Linzer Marc Sieber | 6–1, 6–7$^{(3–7)}$, [10–5] |