| Challenger Calgary | 11/08 04:30 | 25 |
[133] Gabriel Diallo v
Andrew Paulson
[302] |
4-6,7-6,6-4 | |
| Challenger Brest | 10/24 11:15 | 25 |
[132] Radu Albot
v
Gabriel Diallo [133]
|
6-7,6-2,6-3 | |
| Challenger Brest | 10/23 09:00 | 19 |
[133] Gabriel Diallo v
Geoffrey Blancaneaux
[244] |
6-4,4-6,7-6 | |
| Challenger Brest | 10/22 08:00 | 14 |
Gabriel Diallo v
Niels Villard
|
7-6,6-1 | |
| Challenger Bratislava | 10/15 13:00 | 29 |
[164] Gabriel Diallo v
Joris De Loore
[188] |
6-0,7-5 | |
| Challenger Bratislava | 10/14 14:10 | 28 |
[164] Gabriel Diallo v
Martin Damm
[330] |
7-6,6-2 | |
| Challenger Bratislava | 10/13 15:15 | 27 |
[164] Gabriel Diallo v
Lukas Klein
[149] 
|
3-6,7-6,6-2 | |
| Challenger Bratislava | 10/12 16:30 | 26 |
[72] Dominic Thiem
v
Gabriel Diallo [164]
|
1-6,6-4,6-7 | |
| Challenger Bratislava | 10/11 09:00 | 25 |
[164] Gabriel Diallo v
Arthur Fery
[319] |
7-5,6-1 | |
| Challenger Mouilleron le Captif | 10/02 14:20 | 25 |
[166] Gabriel Diallo v
Vitaliy Sachko
[163] |
6-3,4-6,4-6 | |
| Challenger Orleans | 09/25 21:55 | 25 |
[161] Gabriel Diallo v
Giulio Zeppieri
[139] 
|
2-6,6-2,4-6 | |
| Challenger Orleans | 09/24 08:00 | 14 |
Gabriel Diallo v
Tristan Lamasine
|
Cancelled | |
| Davis Cup | 09/16 15:15 | 2 |
[158] Gabriel Diallo v
Nicolas Jarry
[22] 
|
4-6,4-6 | |
| Davis Cup | 09/14 15:50 | 2 |
[158] Gabriel Diallo v
Elias Ymer
[175] 
|
6-4,6-3 | |
| Davis Cup | 09/13 15:50 | 2 |
[158] Gabriel Diallo v
Lorenzo Musetti
[18] 
|
7-5,6-4 | |
| US Open | 08/23 18:40 | 14 |
[148] Kimmer Coppejans
v
Gabriel Diallo [132]
|
6-4,5-7,7-6 | |
| Challenger Winnipeg | 08/16 23:00 | 26 |
[134] Gabriel Diallo v
Mattia Bellucci
[198] 
|
2-6,3-6 | |
| Challenger Winnipeg | 08/15 16:00 | 25 |
[134] Gabriel Diallo v
Enzo Couacaud
[180] 
|
4-6,6-2,7-6 | |
| ATP Toronto | 08/09 19:00 | 25 |
[141] Gabriel Diallo v
Alex De Minaur
[18] 
|
4-6,5-7 | |
| ATP Toronto | 08/08 21:45 | 24 |
[141] Gabriel Diallo v
Daniel Evans
[21] 
|
7-6,7-5 | |
| ATP Los Cabos | 08/01 02:35 | 25 |
[140] Gabriel Diallo v
Gijs Brouwer
[144] 
|
2-6,6-4,2-6 | |
| ATP Atlanta | 07/23 15:00 | 19 |
[141] Gabriel Diallo v
Jason Jung
[277] |
6-4,5-7,6-7 | |
| ATP Atlanta | 07/22 14:00 | 14 |
[141] Gabriel Diallo v
Bradley Klahn
[500] |
6-3,6-2 | |
| ATP Newport | 07/18 20:10 | 25 |
Gabriel Diallo v
Kevin Anderson
|
3-6,2-6 | |
| Wimbledon | 06/28 10:00 | 15 |
[254] Matteo Gigante
v
Gabriel Diallo [140]
|
6-4,6-4 | |
| Wimbledon | 06/26 10:00 | 14 |
[226] Cem Ilkel
v
Gabriel Diallo [140]
|
3-6,6-4,1-6 | |
| Challenger Ilkley | 06/20 15:15 | 25 |
[139] Gabriel Diallo v
Arthur Cazaux
[147] 
|
3-6,6-7 | |
| Challenger Nottingham | 06/16 12:50 | 27 |
[181] Arthur Cazaux
v
Gabriel Diallo [139]
|
7-6,7-5 | |
| Challenger Nottingham | 06/15 12:05 | 26 |
[139] Gabriel Diallo v
Alex Michelsen
[257] 
|
3-6,7-5,6-3 | |
| Challenger Nottingham | 06/13 16:15 | 25 |
[139] Gabriel Diallo v
Enzo Couacaud
[159]
|
6-3,6-3 |