| 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 | |
| Challenger Helsinki | 11/06 13:35 | 19 |
[228] Gauthier Onclin v
Maximilian Neuchrist
[258] |
5-7,4-6 |
Wikipedia - Gauthier Onclin
Gauthier Onclin (born 26 February 2001) is a Belgian tennis player who plays mainly on the ATP Challenger Tour. He has a career high ranking of world No. 194 achieved on 18 September 2023.
History
2023: ATP debut in doubles
In January, 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, he defeated the higher-ranked Elias Ymer at a Challenger event in Bordeaux in the first round. 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 portion of the Tour cancellation due to the COVID-19 pandemic.
In October, 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: Maiden Challenger final
In May, Onclin reached his first Challenger final at the Prague Open. He lost to the former world No. 35 Jiří Veselý.