| Milan, Italy | 07/05 08:30 | 26 | [216] Gauthier Onclin v Alessandro Giannessi [241] | 6-4,6-1 | |
| Milan, Italy | 07/03 15:30 | 25 | [230] Edoardo Lavagno v Gauthier Onclin [216] | 6-1,3-6,4-6 | |
| Wimbledon, London, Great Britain | 06/28 10:00 | 15 | [169] Maximilian Marterer v Gauthier Onclin [214] | 6-2,6-2 | |
| Wimbledon, London, Great Britain | 06/26 11:10 | 14 | [214] Gauthier Onclin v Thiago Agustin Tirante [132] | 6-2,6-0 | |
| Ilkley, Great Britain | 06/17 17:40 | 14 | [202] Gauthier Onclin v Sho Shimabukuro [177] | 3-6,7-6,5-7 | |
| Troisdorf, Germany | 05/29 08:00 | 25 | Gauthier Onclin v Yu Hsiou Hsu | Cancelled | |
| Open de France | 05/24 08:00 | 15 | [206] Gauthier Onclin v Thiago Agustin Tirante [153] | 1-6,6-3,4-6 | |
| Open de France | 05/22 08:00 | 14 | [206] Gauthier Onclin v Nicholas D Ionel [196] | 6-2,6-3 | |
| Challenger - Bordeaux | 05/17 16:15 | 26 | [50] Ugo Humbert v Gauthier Onclin [209] | 6-3,6-7,7-5 | |
| Challenger - Bordeaux | 05/16 08:30 | 25 | [209] Gauthier Onclin v Elias Ymer [146] | 6-1,6-4 | |
| Challenger - Bordeaux | 05/15 09:00 | 19 | [209] Gauthier Onclin v Guido Andreozzi [298] | 6-3,1-6,7-5 | |
| Challenger - Bordeaux | 05/14 10:15 | 14 | Gauthier Onclin v Duran, Guillermo | 6-4,7-5 | |
| Challenger - Francavilla | 05/09 10:40 | 25 | [209] Gauthier Onclin v Stefano Travaglia [294] | 3-6,0-6 | |
| Challenger - Ostrava | 04/28 09:00 | 27 | [206] Zdenek Kolar v Gauthier Onclin [214] | 6-2,2-6,6-4 | |
| Challenger - Ostrava | 04/26 11:50 | 26 | [214] Gauthier Onclin v Dalibor Svrcina [219] | 6-0,6-3 | |
| Challenger - Ostrava | 04/25 11:25 | 25 | [214] Gauthier Onclin v Vitaliy Sachko [268] | 4-6,6-4,6-2 | |
| Challenger - Ostrava | 04/24 08:00 | 25 | Gauthier Onclin v Dalibor Svrcina | Cancelled | |
| Challenger Roseto | 04/21 11:10 | 27 | [224] Gauthier Onclin v Raphael Collignon [249] | 7-5,4-6,2-6 | |
| Challenger Roseto | 04/20 09:00 | 26 | [224] Gauthier Onclin v Francesco Forti [361] | 6-4,1-6,6-3 | |
| Challenger Roseto | 04/19 10:05 | 25 | [224] Gauthier Onclin v Nino Serdarusic [293] | 7-5,5-7,6-4 | |
| Challenger - Lille | 03/28 14:50 | 25 | [231] Cem Ilkel v Gauthier Onclin [224] | 6-3,6-2 | |
| Challenger - Lille | 03/28 14:00 | 25 | Pierre-Hugues Herbert v Gauthier Onclin | Cancelled | |
| Challenger St Brieuc | 03/22 20:30 | 26 | [224] Gauthier Onclin v Mark Lajal [388] | 6-7,5-7 | |
| Challenger St Brieuc | 03/20 16:00 | 25 | [224] Gauthier Onclin v Shintaro Mochizuki [271] | 6-2,6-4 | |
| Challenger - Lugano | 03/09 18:15 | 26 | [228] Gauthier Onclin v Dominic Stricker [126] | 3-6,3-6 | |
| Challenger - Lugano | 03/07 11:05 | 25 | [228] Gauthier Onclin v Dan Added [279] | 6-4,6-2 | |
| Challenger - Lugano | 03/06 09:00 | 19 | [228] Gauthier Onclin v Arnaboldi, Andrea [344] | 3-6,6-2,6-1 | |
| Challenger - Lugano | 03/05 09:00 | 14 | Gauthier Onclin v Dylan Dietrich | 6-4,6-2 | |
| Challenger Rovereto | 02/25 15:00 | 28 | [258] Gauthier Onclin v Dominic Stricker [153] | 3-6,6-7 | |
| Challenger Rovereto | 02/24 09:00 | 27 | [258] Gauthier Onclin v Zdenek Kolar [190] | 6-3,6-3 |
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.