2‑Dec‑2019 | M15 Cancun | Hard | QF | | 501 | (1)Gage Brymer [USA] d. Banthia | 6-1 6-1 | | | | | | | | | |
2‑Dec‑2019 | M15 Cancun | Hard | R16 | | 590 | Banthia d. (5)Tomas Lipovsek Puches [ARG] | 7-6(3) 6-2 | | | | | | | | | |
2‑Dec‑2019 | M15 Cancun | Hard | R32 | | 1307 | Banthia d. Conor Berg [USA] | 6-1 6-3 | | | | | | | | | |
21‑Oct‑2019 | M15 Cancun | Hard | R32 | | 567 | Cristian Rodriguez [COL] d. (Q)Banthia | 6-3 6-4 | | | | | | | | | |
15‑Jul‑2019 | M15 Tabarka | Clay | R32 | | | (8)Duje Ajdukovic [CRO] d. Banthia | 1-6 7-5 6-4 | | | | | | | | | |
8‑Jul‑2019 | M15 Tabarka | Clay | R16 | | | Fermin Tenti [ARG] d. Banthia | 2-6 7-6(8) 4-1 RET | | | | | | | | | |
8‑Jul‑2019 | M15 Tabarka | Clay | R32 | | | Banthia d. Alexis Musialek [FRA] | 6-4 4-6 7-5 | | | | | | | | | |
1‑Jul‑2019 | M15 Tabarka | Clay | R32 | | | Alexander Weis [ITA] d. Banthia | 6-4 6-2 | | | | | | | | | |
10‑Jun‑2019 | M15 Singapore | Hard | R32 | | | Aidan Mchugh [GBR] d. (JR )Banthia | 7-5 6-1 | | | | | | | | | |
3‑Jun‑2019 | M15 Singapore | Hard | R32 | | | (6)Ryota Tanuma [JPN] d. Banthia | 6-2 4-6 6-1 | | | | | | | | | |
27‑May‑2019 | M15 Singapore | Hard | R16 | | | (8)Alec Adamson [USA] d. Banthia | 6-3 6-0 | | | | | | | | | |
27‑May‑2019 | M15 Singapore | Hard | R32 | | | Banthia d. (Q)Digvijaypratap Singh [IND] | 6-7(5) 6-2 6-1 | | | | | | | | | |