| Challenger Rovereto | 02/20 15:35 | 25 | [258] Gauthier Onclin v Lukas Rosol [262] | 6-1,7-6 | |
| Challenger - Cherbourg | 02/14 11:55 | 25 | [266] Kacper Zuk v Gauthier Onclin [263] | 5-7,6-3,6-4 | |
| Challenger - Cherbourg | 02/13 12:50 | 19 | [263] Gauthier Onclin v Matteo Martineau [373] | 6-4,6-3 | |
| Challenger - Cherbourg | 02/12 20:20 | 14 | [263] Gauthier Onclin v Charles Broom [376] | 6-2,6-4 | |
| Challenger - Koblenz | 01/29 10:20 | 14 | Gauthier Onclin v Jahn, Jeremy | Cancelled | |
| Challenger - Ottignies | 01/28 16:45 | 28 | [50] David Goffin v Gauthier Onclin [338] | 7-6,6-2 | |
| Challenger - Ottignies | 01/27 19:30 | 27 | [338] Gauthier Onclin v Kaichi Uchida [198] | 6-3,6-3 | |
| Challenger - Ottignies | 01/26 15:00 | 26 | [338] Gauthier Onclin v Gulbis, Ernests [314] | 6-7,6-2,6-3 | |
| Challenger - Ottignies | 01/25 18:30 | 25 | [106] Ugo Humbert v Gauthier Onclin [338] | 5-7,1-6 | |
| Challenger - Ottignies | 01/24 12:15 | 19 | [381] Ergi Kirkin v Gauthier Onclin [338] | 1-6,6-7 | |
| Challenger - Ottignies | 01/23 19:00 | 14 | Sumit Nagal v Gauthier Onclin | 2-6,6-2,5-7 | |
| ITF - M15 Bressuire | 01/22 14:30 | 29 | Gauthier Onclin v Lucas Poullain | 7-5,6-3 | |
| ITF - M15 Bressuire | 01/21 16:15 | 28 | Gauthier Onclin v Antoine Ghibaudo | 6-2,6-2 | |
| ITF - M15 Bressuire | 01/20 14:25 | 27 | Gauthier Onclin v Adrien Gobat | 7-6,6-1 | |
| ITF - M15 Bressuire | 01/19 13:00 | 26 | Gauthier Onclin v Florig, Philip | 6-3,6-2 | |
| ITF - M15 Bressuire | 01/18 09:00 | 25 | Gauthier Onclin v Maik Steiner | 7-5,7-5 | |
| Challenger Maia | 11/29 12:30 | 25 | [339] Gauthier Onclin v Evgeny Karlovskiy [331] | 2-6,0-6 | |
| Challenger Maia | 11/28 13:10 | 19 | [339] Gauthier Onclin v Jaime Faria [364] | 6-0,2-6,6-2 | |
| Challenger Maia | 11/27 14:10 | 14 | Gauthier Onclin v Francisco Rocha | 6-0,6-3 | |
| Helsinki, Finland | 11/13 09:00 | 14 | [47] Erler, Alexander v Gauthier Onclin [331] | 7-6,7-6 | |
| ITF M25 Monastir | 11/04 11:10 | 27 | [338] Gauthier Onclin v Briand, Jurgen [410] | 7-6,0-6,2-6 | |
| ITF M25 Monastir | 11/03 12:10 | 26 | Gauthier Onclin v Soriano Barrera, Adria | 6-4,6-1 | |
| ITF M25 Monastir | 11/02 11:40 | 25 | Gauthier Onclin v Jules Marie | 3-6,6-3,6-4 | |
| ITF M25 Monastir | 10/30 11:25 | 29 | [342] Gauthier Onclin v Mathys Erhard [403] | 6-7,6-7 | |
| ITF M25 Monastir | 10/29 09:30 | 28 | [342] Gauthier Onclin v Ugo Blanchet [340] | 6-4,6-2 | |
| ITF M25 Monastir | 10/28 09:30 | 27 | [249] Skander Mansouri v Gauthier Onclin [342] | 7-5,1-6,5-7 | |
| ITF M25 Monastir | 10/27 09:40 | 26 | [485] Eliakim Coulibaly v Gauthier Onclin [342] | 4-6,2-6 | |
| ITF M25 Monastir | 10/25 09:50 | 25 | Andrej Krajcik v Gauthier Onclin | 1-6,1-6 | |
| ITF M25 Rodez | 10/15 13:30 | 28 | Gauthier Onclin v Alexis Gautier | 2-6,4-6 | |
| ITF M25 Rodez | 10/14 09:30 | 27 | [437] Sascha Gueymard Wayenburg v Gauthier Onclin [401] | 3-6,3-6 |
Wikipedia - Gauthier Onclin
Gauthier Onclin (born 26 February 2001) is a Belgian tennis player. He has a career high ranking of 194 achieved on September 18, 2023.
History
2023
In January 2023 Onclin reached the semifinals of the 2023 BW Open in Ottignies-Louvain-la-Neuve 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.
2024
In May 2024 Onclin reaches his first final in a Challenger tournament at the Prague Open. He loses to the former world number 35 Jiří Veselý.