20‑Dec‑2021 | M15 Monastir | Hard | R32 | 923 | 578 | (4)Omni Kumar [USA] d. Bertrand | 6-4 6-4 | | | | | | | | | |
15‑Nov‑2021 | Pau CH | Hard | Q1 | 911 | 402 | (6)Sebastian Fanselow [GER] d. (WC)Bertrand | 6-4 6-3 | | 0.85 | 1.9% | 1.9% | 64.8% | 62.9% | 36.8% | 2/6 | 1:31 |
8‑Nov‑2021 | M15 Monastir | Hard | R32 | 944 | | (Q)Jarno Jans [NED] d. Bertrand | 6-3 7-5 | | | | | | | | | |
1‑Nov‑2021 | M15 Monastir | Hard | R16 | 960 | 675 | Ugo Blanchet [FRA] d. (Q)Bertrand | 6-1 6-3 | | | | | | | | | |
1‑Nov‑2021 | M15 Monastir | Hard | R32 | 960 | 525 | (Q)Bertrand d. (2)Gage Brymer [USA] | 7-6(2) 6-2 | | | | | | | | | |
25‑Oct‑2021 | M15 Monastir | Hard | R16 | 960 | 1222 | (WC)Viktor Jovic [SRB] d. Bertrand | 0-6 7-6(5) 7-5 | | | | | | | | | |
25‑Oct‑2021 | M15 Monastir | Hard | R32 | 960 | 666 | Bertrand d. (5)Christoph Negritu [GER] | 6-2 3-6 6-2 | | | | | | | | | |
18‑Oct‑2021 | M25 Toulouse | Hard | R32 | 1016 | 731 | Lukas Neumayer [AUT] d. (WC)Bertrand | 6-3 6-2 | | | | | | | | | |
11‑Oct‑2021 | M15 Monastir | Hard | QF | 1012 | 1130 | Mateo Nicolas Martinez [ARG] d. (WC)Bertrand | 6-4 7-6(3) | | | | | | | | | |
11‑Oct‑2021 | M15 Monastir | Hard | R16 | 1012 | | (WC)Bertrand d. Martin Katz [BEL] | 6-4 6-3 | | | | | | | | | |
11‑Oct‑2021 | M15 Monastir | Hard | R32 | 1012 | | (WC)Bertrand d. (Q)Josef Southcombe [GBR] | 7-5 6-4 | | | | | | | | | |
4‑Oct‑2021 | M15 Monastir | Hard | R32 | 1012 | 952 | Kazuki Nishiwaki [JPN] d. Bertrand | 6-3 6-4 | | | | | | | | | |
13‑Sep‑2021 | M25+H Plaisir | Hard | R16 | 1045 | 622 | Alexander Donski [CAN] d. (WC)Bertrand | 6-3 6-3 | | | | | | | | | |
13‑Sep‑2021 | M25+H Plaisir | Hard | R32 | 1045 | 427 | (WC)Bertrand d. (7)Nicolas Alvarez Varona [ESP] | 7-5 6-3 | | | | | | | | | |
30‑Aug‑2021 | M25 Bagneres-De-Bigorre | Hard | R16 | 1277 | 1439 | (Q)Millen Hurrion [GBR] d. (WC)Bertrand | 6-4 6-1 | | | | | | | | | |
30‑Aug‑2021 | M25 Bagneres-De-Bigorre | Hard | R32 | 1277 | 1148 | (WC)Bertrand d. (Q)Martin Breysach [FRA] | 6-3 6-2 | | | | | | | | | |
23‑Aug‑2021 | M15 Monastir | Hard | SF | 1264 | | (Q)Li Tu [AUS] d. (Q)Bertrand | 6-2 7-6(2) | | | | | | | | | |
23‑Aug‑2021 | M15 Monastir | Hard | QF | 1264 | 506 | (Q)Bertrand d. (1)Felix Corwin [USA] | 6-4 6-4 | | | | | | | | | |
23‑Aug‑2021 | M15 Monastir | Hard | R16 | 1264 | 1761 | (Q)Bertrand d. Mehdi Sadaoui [FRA] | 6-4 6-2 | | | | | | | | | |
23‑Aug‑2021 | M15 Monastir | Hard | R32 | 1264 | 597 | (Q)Bertrand d. (5)Thomas Fancutt [AUS] | 1-6 6-4 7-6(5) | | | | | | | | | |
16‑Aug‑2021 | M15 Monastir | Hard | R32 | 1268 | 796 | Hady Habib [LBN] d. Bertrand | 6-2 6-3 | | | | | | | | | |
26‑Jul‑2021 | M15 Castelo Branco | Hard | R16 | 1987 | 969 | Francisco Cabral [POR] d. (Q)Bertrand | 6-1 6-2 | | | | | | | | | |
26‑Jul‑2021 | M15 Castelo Branco | Hard | R32 | 1987 | 852 | (Q)Bertrand d. Mehluli Don Ayanda Sibanda [ZIM] | 6-2 6-1 | | | | | | | | | |
19‑Jul‑2021 | M25 Idanha-a-Nova | Hard | QF | 1982 | | (Q)Clement Chidekh [FRA] d. (Q)Bertrand | 6-0 6-0 | | | | | | | | | |
19‑Jul‑2021 | M25 Idanha-a-Nova | Hard | R16 | 1982 | 1453 | (Q)Bertrand d. (Q)Daniel Little [GBR] | 3-6 6-1 6-3 | | | | | | | | | |
19‑Jul‑2021 | M25 Idanha-a-Nova | Hard | R32 | 1982 | 531 | (Q)Bertrand d. (7)Ben Patael [ISR] | 6-1 6-3 | | | | | | | | | |
8‑Feb‑2021 | M15 Grenoble | Hard | R32 | 1813 | 494 | (8)Thomas Laurent [FRA] d. (WC)Bertrand | 6-3 6-4 | | | | | | | | | |
4‑Jan‑2021 | M15 Monastir | Hard | R16 | | 664 | (7)Wojciech Marek [POL] d. (WC)Bertrand | 6-4 6-4 | | | | | | | | | |
4‑Jan‑2021 | M15 Monastir | Hard | R32 | | 784 | (WC)Bertrand d. Simon Yitbarek [SWE] | 7-6(5) 6-1 | | | | | | | | | |