| Challenger Rome GA | 02/23 16:00 | 26 | [235] Seong Chan Hong v Gabriel Decamps [363] | 6-1,6-0 | |
| Challenger Rome GA | 02/21 15:00 | 25 | [363] Gabriel Decamps v Daniel Cukierman [366] | 6-1,6-2 | |
| Challenger - Tenerife | 01/15 11:50 | 14 | [322] Gabriel Decamps v Ernests Gulbis [311] | Retired | |
| Challenger - Oeiras | 01/10 14:20 | 25 | [322] Gabriel Decamps v Pol M Tiffon [292] | 6-7,7-6,4-6 | |
| Challenger - Oeiras | 01/09 13:25 | 19 | [322] Gabriel Decamps v Kenny de Schepper [345] | 3-6,6-3,7-5 | |
| Challenger - Oeiras - Calificari | 01/08 14:20 | 14 | Gabriel Decamps v Henrique Rocha | 7-5,6-3 | |
| Challenger - Oeiras | 01/03 17:50 | 25 | [323] Gabriel Decamps v Jay Clarke [240] | 6-7,1-6 | |
| Challenger - Temuco | 11/23 17:05 | 26 | [281] Gabriel Decamps v Juan Bautista Otegui [432] | 6-7,4-6 | |
| Challenger - Temuco | 11/21 20:35 | 25 | [281] Gabriel Decamps v Wilson Leite [417] | 6-3,6-0 | |
| Challenger Drummondville | 11/14 23:30 | 25 | [214] Alexis Galarneau v Gabriel Decamps [279] | 3-6,6-2,7-6 | |
| Challenger - Calgary | 11/09 17:00 | 26 | [280] Gabriel Decamps v Antoine Escoffier [216] | 5-7,3-6 | |
| Challenger - Calgary | 11/08 23:55 | 25 | Johannes Haerteis v Gabriel Decamps | 5-7,4-6 | |
| Challenger - Brest | 10/25 19:20 | 25 | [63] Benjamin Bonzi v Gabriel Decamps [277] | 7-5,7-5 | |
| Challenger - Vilnius | 10/18 10:00 | 25 | [277] Gabriel Decamps v Nerman Fatic [195] | 4-6,5-7 | |
| Challenger - Ismaning | 10/13 11:00 | 26 | [276] Gabriel Decamps v Kacper Zuk [269] | 1-6,4-6 | |
| Challenger - Ismaning | 10/11 19:10 | 25 | [436] Matthias Bachinger v Gabriel Decamps [276] | 0-6,6-1,4-6 | |
| Challenger 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 - Nonthaburi | 09/03 06:35 | 28 | [286] Gabriel Decamps v Omar Jasika [367] | Retired | |
| Challenger - Nonthaburi | 09/02 05:25 | 27 | [286] Gabriel Decamps v Federico Gaio [330] | 6-3,7-5 | |
| Challenger - Nonthaburi | 09/01 04:40 | 26 | Gabriel Decamps v Kasidit Samrej | 6-4,6-4 | |
| Challenger - Nonthaburi | 08/29 07:10 | 25 | [286] Gabriel Decamps v Sergey Fomin [353] | 6-2,6-2 | |
| Challenger - Nonthaburi | 08/24 05:15 | 26 | [341] Dane Sweeny v Gabriel Decamps [280] | 6-3,6-4 | |
| Challenger - Nonthaburi | 08/23 03:30 | 25 | [352] Sergey Fomin v Gabriel Decamps [280] | Retired | |
| Challenger - Grodzisk Mazowiecki | 08/19 12:00 | 27 | [295] Harold Mayot v Gabriel Decamps [302] | 6-4,7-6 | |
| Challenger - Grodzisk Mazowiecki | 08/18 08:30 | 26 | [302] Gabriel Decamps v Sebastian Ofner [224] | 7-6,6-4 | |
| Challenger - Grodzisk Mazowiecki | 08/16 12:25 | 25 | [302] Gabriel Decamps v Oleksii Krutykh [270] | 6-7,6-2,7-6 | |
| Challenger - Segovia | 07/26 11:40 | 25 | [307] Gabriel Decamps v Ugo Humbert [152] | 3-6,4-6 | |
| Challenger - Segovia | 07/25 09:00 | 19 | [307] Gabriel Decamps v Yan Bondarevskiy [448] | 6-2,6-4 | |
| Challenger - 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.