| Wimbledon | 06/28 10:00 | 15 | [169] Maximilian Marterer v Gauthier Onclin [214] | 6-2,6-2 | |
| Wimbledon | 06/26 11:10 | 14 | [214] Gauthier Onclin v Thiago Agustin Tirante [132] | 6-2,6-0 | |
| Challenger - Ilkley | 06/17 17:40 | 14 | [202] Gauthier Onclin v Sho Shimabukuro [177] | 3-6,7-6,5-7 | |
| Challenger - Troisdorf | 05/29 08:00 | 25 | Gauthier Onclin v Yu Hsiou Hsu | Cancelled | |
| French Open | 05/24 08:00 | 15 | [206] Gauthier Onclin v Thiago Agustin Tirante [153] | 1-6,6-3,4-6 | |
| French Open | 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 Guillermo Duran | 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 Andrea Arnaboldi [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 | |
| Challenger - Rovereto | 02/22 15:30 | 26 | [369] Marcello Serafini v Gauthier Onclin [258] | 4-6,6-2,5-7 | |
| Challenger - Rovereto | 02/20 15:35 | 25 | [258] Gauthier Onclin v Lukas Rosol [262] | 6-1,7-6 |
Wikipedia - Gauthier Onclin
Gauthier Onclin (* 26. Februar 2001 in Lüttich) ist ein belgischer Tennisspieler.