| Challenger de Rome GA | 02/23 16:00 | 26 | [235] Seong Chan Hong v Gabriel Decamps [363] | 6-1,6-0 | |
| Challenger de Rome GA | 02/21 15:00 | 25 | [363] Gabriel Decamps v Daniel Cukierman [366] | 6-1,6-2 | |
| Challenger de Tenerife | 01/15 11:50 | 14 | [322] Gabriel Decamps v Ernests Gulbis [311] | Retired | |
| Challenger de Oeiras | 01/10 14:20 | 25 | [322] Gabriel Decamps v Pol M Tiffon [292] | 6-7,7-6,4-6 | |
| Challenger de Oeiras | 01/09 13:25 | 19 | [322] Gabriel Decamps v Kenny de Schepper [345] | 3-6,6-3,7-5 | |
| Challenger Oeiras Qual | 01/08 14:20 | 14 | Gabriel Decamps v Henrique Rocha | 7-5,6-3 | |
| Challenger de Oeiras | 01/03 17:50 | 25 | [323] Gabriel Decamps v Jay Clarke [240] | 6-7,1-6 | |
| Challenger de Temuco | 11/23 17:05 | 26 | [281] Gabriel Decamps v Juan Bautista Otegui [432] | 6-7,4-6 | |
| Challenger de Temuco | 11/21 20:35 | 25 | [281] Gabriel Decamps v Wilson Leite [417] | 6-3,6-0 | |
| Challenger de Drummondville | 11/14 23:30 | 25 | [214] Alexis Galarneau v Gabriel Decamps [279] | 3-6,6-2,7-6 | |
| Challenger de Calgary | 11/09 17:00 | 26 | [280] Gabriel Decamps v Antoine Escoffier [216] | 5-7,3-6 | |
| Challenger de Calgary | 11/08 23:55 | 25 | Johannes Haerteis v Gabriel Decamps | 5-7,4-6 | |
| Challenger de Brest | 10/25 19:20 | 25 | [63] Benjamin Bonzi v Gabriel Decamps [277] | 7-5,7-5 | |
| Challenger de Vilna | 10/18 10:00 | 25 | [277] Gabriel Decamps v Nerman Fatic [195] | 4-6,5-7 | |
| Challenger de Ismaning | 10/13 11:00 | 26 | [276] Gabriel Decamps v Kacper Zuk [269] | 1-6,4-6 | |
| Challenger de Ismaning | 10/11 19:10 | 25 | [436] Matthias Bachinger v Gabriel Decamps [276] | 0-6,6-1,4-6 | |
| Challenger de Alicante | 10/03 13:45 | 25 | [228] Nicolas Alvarez Varona v Gabriel Decamps [264] | 6-2,7-5 | |
| Challenger Rennes | 09/12 15:35 | 25 | Clement Chidekh v Gabriel Decamps | 6-2,5-7,6-1 | |
| Challenger de Nonthaburi | 09/03 06:35 | 28 | [286] Gabriel Decamps v Omar Jasika [367] | Retired | |
| Challenger de Nonthaburi | 09/02 05:25 | 27 | [286] Gabriel Decamps v Federico Gaio [330] | 6-3,7-5 | |
| Challenger de Nonthaburi | 09/01 04:40 | 26 | Gabriel Decamps v Kasidit Samrej | 6-4,6-4 | |
| Challenger de Nonthaburi | 08/29 07:10 | 25 | [286] Gabriel Decamps v Sergey Fomin [353] | 6-2,6-2 | |
| Challenger de Nonthaburi | 08/24 05:15 | 26 | [341] Dane Sweeny v Gabriel Decamps [280] | 6-3,6-4 | |
| Challenger de Nonthaburi | 08/23 03:30 | 25 | [352] Sergey Fomin v Gabriel Decamps [280] | Retired | |
| Challenger de Grodzisk Mazowiecki | 08/19 12:00 | 27 | [295] Harold Mayot v Gabriel Decamps [302] | 6-4,7-6 | |
| Challenger de Grodzisk Mazowiecki | 08/18 08:30 | 26 | [302] Gabriel Decamps v Sebastian Ofner [224] | 7-6,6-4 | |
| Challenger de Grodzisk Mazowiecki | 08/16 12:25 | 25 | [302] Gabriel Decamps v Oleksii Krutykh [270] | 6-7,6-2,7-6 | |
| Challenger de Segovia | 07/26 11:40 | 25 | [307] Gabriel Decamps v Ugo Humbert [152] | 3-6,4-6 | |
| Challenger de Segovia | 07/25 09:00 | 19 | [307] Gabriel Decamps v Yan Bondarevskiy [448] | 6-2,6-4 | |
| Challenger de Segovia | 07/24 08:00 | 14 | [328] Gabriel Decamps v Inigo Cervantes [304] | 7-5,6-2 |
Gabriel Décamps (born 7 August 1999) is a Brazilian tennis player.
Décamps has a career high ATP singles ranking of 262 achieved on 19 September 2022. He also has a career high doubles ranking of 406 achieved on 6 March 2023.
Décamps has won 1 ATP Challenger doubles title at the 2022 Shymkent Challenger with Antoine Bellier.
Décamps played college tennis at Central Florida.
In April 2023, Décamps announced his temporary withdrawal of professional tennis due mental health issues.
In September 2023, Décamps returned his tennis activities after a five months temporary withdrawal.