| Australian Open | 01/16 01:20 | 24 |
[86] Gabriel Diallo v
Karen Khachanov
[19] 
|
6-7,6-4,3-6,3-6 | |
| Australian Open | 01/14 00:00 | 23 |
[86] Gabriel Diallo v
Luca Nardi
[83] 
|
6-7,7-6,5-7,6-1,6-2 | |
| ATP Auckland | 01/06 22:30 | 25 |
[87] Gabriel Diallo v
Lorenzo Sonego
[54] 
|
6-7,6-2,6-7 | |
| ATP Hong Kong | 01/02 05:00 | 26 |
[87] Gabriel Diallo v
Lorenzo Musetti
[17] 
|
4-6,3-6 | |
| ATP Hong Kong | 12/31 08:35 | 25 |
[87] Gabriel Diallo v
Roberto Carballes Baena
[57] 
|
4-6,7-6,7-5 | |
| ATP Hong Kong | 12/30 04:45 | 19 |
[87] Gabriel Diallo v
Hugo Grenier
[155] 
|
4-6,6-1,7-5 | |
| ATP Hong Kong | 12/29 08:00 | 46 |
Gabriel Diallo v
Ki Lung NG
|
7-6,6-2 | |
| Davis Cup | 11/20 11:00 | 27 |
[88] Daniel Altmaier
v
Gabriel Diallo [86]
|
7-6,6-4 | |
| Challenger Helsinki | 11/05 11:00 | 25 |
Gabriel Diallo v
Henri Squire
|
Cancelled | |
| Challenger Bratislava | 11/01 20:45 | 27 |
Raphael Collignon
v
Gabriel Diallo
|
3-6,7-6,7-5 | |
| Challenger Bratislava | 10/30 11:35 | 26 |
[124] Pierre-Hugues Herbert
v
Gabriel Diallo [89]
|
2-6,4-6 | |
| Challenger Bratislava | 10/29 12:05 | 25 |
[248] Zsombor Piros
v
Gabriel Diallo [89]
|
1-6,5-7 | |
| ATP Almaty | 10/20 10:00 | 29 |
[26] Karen Khachanov
v
Gabriel Diallo [118]
|
6-2,5-7,6-3 | |
| ATP Almaty | 10/19 10:00 | 28 |
[31] Francisco Cerundolo
v
Gabriel Diallo [118]
|
4-6,2-6 | |
| ATP Almaty | 10/18 06:00 | 27 |
[118] Gabriel Diallo v
Alejandro Tabilo
[23] 
|
3-6,6-3,6-4 | |
| ATP Almaty | 10/16 07:40 | 26 |
[96] Borna Coric
v
Gabriel Diallo [118]
|
6-7,4-6 | |
| ATP Almaty | 10/15 06:00 | 25 |
[72] Christopher O'Connell
v
Gabriel Diallo [118]
|
6-7,2-6 | |
| Challenger Hangzhou | 10/12 04:30 | 28 |
[105] Gabriel Diallo v
Mackenzie McDonald
[151] 
|
6-7,3-6 | |
| Challenger Hangzhou | 10/11 04:30 | 27 |
[105] Gabriel Diallo v
Arthur Cazaux
[92] 
|
2-6,6-4,6-4 | |
| Challenger Hangzhou | 10/10 03:00 | 26 |
Gabriel Diallo v
Kasidit Samrej
|
6-3,6-2 | |
| Challenger Hangzhou | 10/09 02:30 | 25 |
[105] Gabriel Diallo v
James McCabe
[272] 
|
6-4,6-2 | |
| ATP Shanghai | 10/02 10:55 | 23 |
[64] Alejandro Davidovich Fokina
v
Gabriel Diallo [105]
|
7-5,7-6 | |
| ATP Shanghai | 10/01 09:10 | 15 |
[105] Gabriel Diallo v
Marco Trungelliti
[137] 
|
6-3,7-5 | |
| ATP Shanghai | 09/30 10:15 | 14 |
[105] Gabriel Diallo v
Benjamin Hassan
[192] 
|
6-0,7-6 | |
| Challenger Nonthaburi | 09/27 06:25 | 27 |
[172] Mackenzie McDonald
v
Gabriel Diallo [105]
|
7-6,6-3 | |
| Challenger Nonthaburi | 09/26 04:00 | 26 |
[282] Gonzalo Oliveira
v
Gabriel Diallo [105]
|
Retired | |
| Challenger Nonthaburi | 09/25 03:00 | 25 |
[122] Jisung Nam
v
Gabriel Diallo [105]
|
6-7,0-6 | |
| US Open | 08/31 18:40 | 25 |
[143] Gabriel Diallo v
Tommy Paul
[14] 
|
7-6,3-6,1-6,6-7 | |
| US Open | 08/29 19:30 | 24 |
[24] Arthur Fils
v
Gabriel Diallo [143]
|
5-7,7-6,4-6,4-6 | |
| US Open | 08/27 21:50 | 23 |
[84] Jaume Munar
v
Gabriel Diallo [143]
|
4-6,6-3,3-6,5-7 |