| Challenger - Rovereto | 02/20 15:35 | 25 | [258] Gauthier Onclin v Lukáš 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 Jeremy Jahn | 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 Ernests Gulbis [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 Philip Florig | 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 | |
| Challenger - Helsinki | 11/13 09:00 | 14 | [47] Alexander Erler v Gauthier Onclin [331] | 7-6,7-6 | |
| ITF - M25 Monastir | 11/04 11:10 | 27 | [338] Gauthier Onclin v Jurgen Briand [410] | 7-6,0-6,2-6 | |
| ITF - M25 Monastir | 11/03 12:10 | 26 | Gauthier Onclin v Adria S Barrera | 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.