| Challenger - Ostrava | 04/24 08:00 | 26 | [205] Dennis Novak v Gauthier Onclin [276] | 7-6,6-2 | |
| Challenger - Ostrava | 04/23 09:45 | 25 | [265] Dimitar Kuzmanov v Gauthier Onclin [276] | 5-7,6-7 | |
| Challenger - Oeiras | 04/16 11:45 | 25 | [158] Jesper De Jong v Gauthier Onclin [269] | 6-3,6-2 | |
| Challenger - Oeiras | 04/15 09:30 | 19 | [245] Maks Kasnikowski v Gauthier Onclin [269] | 6-7,3-6 | |
| Challenger - Oeiras | 04/14 11:50 | 14 | [451] Miguel Damas v Gauthier Onclin [268] | 4-6,1-6 | |
| ITF M25 - Saint-Dizier | 03/31 13:00 | 29 | [262] Alibek Kachmazov v Gauthier Onclin [279] | 6-3,6-7,5-7 | |
| ITF M25 - Saint-Dizier | 03/30 15:10 | 28 | Buvaysar Gadamauri v Gauthier Onclin | 4-6,1-6 | |
| ITF M25 - Saint-Dizier | 03/29 14:00 | 27 | [423] Sascha Gueymard Wayenburg v Gauthier Onclin [279] | 6-3,3-6,2-6 | |
| ITF M25 - Saint-Dizier | 03/28 16:35 | 26 | Boris Fassbender v Gauthier Onclin | 3-6,3-6 | |
| ITF M25 - Saint-Dizier | 03/27 10:25 | 25 | Adan Freire Da Silva v Gauthier Onclin | 3-6,1-6 | |
| ITF M25 - Toulouse | 03/22 14:10 | 27 | [279] Gauthier Onclin v Raphael Collignon [436] | 4-6,5-7 | |
| ITF M25 - Toulouse | 03/21 15:40 | 26 | Gauthier Onclin v Alexey Vatutin | 6-3,4-6,6-2 | |
| ITF M25 - Toulouse | 03/20 15:30 | 25 | [279] Gauthier Onclin v Antoine Hoang [495] | 6-1,6-2 | |
| ITF - M25 Creteil | 03/15 10:55 | 27 | Alexey Vatutin v Gauthier Onclin | 6-3,6-1 | |
| ITF - M25 Creteil | 03/14 10:00 | 26 | [169] Neil Oberleitner v Gauthier Onclin [264] | 4-6,6-2,2-6 | |
| ITF - M25 Creteil | 03/12 18:05 | 25 | Adrien Gobat v Gauthier Onclin | 4-6,6-1,4-6 | |
| Challenger - New Delhi | 02/27 14:15 | 25 | [267] Gauthier Onclin v Adam Walton [145] | 4-6,0-6 | |
| Challenger - Pune | 02/19 13:00 | 25 | [235] Tung-Lin Wu v Gauthier Onclin [252] | 7-6,6-7,6-3 | |
| Challenger - Bengaluru | 02/15 06:30 | 26 | [153] Adam Walton v Gauthier Onclin [252] | 6-2,6-2 | |
| Challenger - Bengaluru | 02/12 10:30 | 25 | [277] Giovanni Fonio v Gauthier Onclin [252] | 4-6,6-1,6-7 | |
| Challenger - Ottignies | 01/25 15:30 | 26 | [250] Leandro Riedi v Gauthier Onclin [218] | 7-5,6-3 | |
| Challenger - Ottignies | 01/24 16:10 | 25 | [184] Denis Yevseyev v Gauthier Onclin [218] | 4-6,4-6 | |
| Challenger - Nonthaburi | 01/18 05:55 | 26 | [218] Gauthier Onclin v Matteo Gigante [171] | 2-6,7-6,2-6 | |
| Challenger - Nonthaburi | 01/16 07:00 | 25 | [218] Gauthier Onclin v Clement Tabur [233] | 6-4,6-3 | |
| Australian Open | 01/10 05:15 | 14 | [103] Aleksandar Kovacevic v Gauthier Onclin [220] | 6-3,6-7,7-6 | |
| Challenger - Nonthaburi | 01/04 03:30 | 27 | [231] Gauthier Onclin v Lucas Pouille [329] | 3-6,2-6 | |
| Challenger - Nonthaburi | 01/03 03:00 | 26 | [251] Evgeny Donskoy v Gauthier Onclin [231] | 3-6,3-6 | |
| Challenger - Nonthaburi | 01/01 08:45 | 25 | [231] Gauthier Onclin v Yasutaka Uchiyama [269] | 7-5,6-2 | |
| Challenger - Danderyd | 11/16 09:00 | 26 | Gauthier Onclin v Flavio Cobolli | Walkover | |
| Challenger - Danderyd | 11/14 17:15 | 25 | [380] Leo Borg v Gauthier Onclin [227] | 6-2,4-6,0-6 |
Wikipedia - Gauthier Onclin
Gauthier Onclin (born 26 February 2001) is a Belgian tennis player. He has a career high ranking of 184 achieved on September 18, 2023.
History
2023
In January 2023 Onclin reached the semifinals of the 2023 BW Open in Mons where he lost to eventual champion and compatriot David Goffin. In May 2023 he beat the higher-ranked Elias Ymer at a challenger event in Bordeaux. At the 2023 French Open he defeated Nicholas David Ionel in straight sets in the first round of qualifying before losing to Argentine Thiago Agustin Tirante in three sets. Onclin got his revenge over the Argentine in the qualifying at the 2023 Wimbledon Championships, winning in straight sets during his first ever grass-court summer, as his junior years coincided with the grass-court cancellation due to the COVID-19 pandemic.
In October 2023, he received a wildcard in doubles for the European Open in Antwerp, alongside compatriot Michael Geerts. At the same tournament, in the qualifying singles competition, he defeated higher-ranked American Maxime Cressy.