31‑May‑2021 | M15 Heraklion | Hard | F | 797 | 586 | (5)Ben Patael [ISR] d. (Q)Arnaboldi | 6-1 6-4 | | | | | | | | | |
31‑May‑2021 | M15 Heraklion | Hard | SF | 797 | 687 | (Q)Arnaboldi d. Yuki Mochizuki [JPN] | 6-2 6-0 | | | | | | | | | |
31‑May‑2021 | M15 Heraklion | Hard | QF | 797 | 503 | (Q)Arnaboldi d. (2)Ze Zhang [CHN] | 6-3 2-6 6-4 | | | | | | | | | |
31‑May‑2021 | M15 Heraklion | Hard | R16 | 797 | 764 | (Q)Arnaboldi d. Cayetano March [ECU] | 6-3 6-4 | | | | | | | | | |
31‑May‑2021 | M15 Heraklion | Hard | R32 | 797 | 1362 | (Q)Arnaboldi d. (Q)William Griffith [USA] | 6-3 6-7(4) 6-3 | | | | | | | | | |
24‑May‑2021 | M15 Heraklion | Hard | SF | 795 | 509 | (7)Ze Zhang [CHN] d. (Q)Arnaboldi | 6-2 6-1 | | | | | | | | | |
24‑May‑2021 | M15 Heraklion | Hard | QF | 795 | 428 | (Q)Arnaboldi d. (5)Yshai Oliel [ISR] | 7-6(2) 2-6 6-3 | | | | | | | | | |
24‑May‑2021 | M15 Heraklion | Hard | R16 | 795 | 369 | (Q)Arnaboldi d. (2)Petros Chrysochos [CYP] | W/O | | | | | | | | | |
24‑May‑2021 | M15 Heraklion | Hard | R32 | 795 | 676 | (Q)Arnaboldi d. Takuto Niki [JPN] | 6-3 6-4 | | | | | | | | | |
16‑Nov‑2020 | M15 Heraklion | Hard | R32 | 896 | 344 | (4)Tim Van Rijthoven [NED] d. (Q)Arnaboldi | 6-4 3-6 6-3 | | | | | | | | | |
9‑Nov‑2020 | M15 Heraklion | Hard | R32 | 890 | 450 | (SE)Lucas Catarina [MON] d. (Q)Arnaboldi | 6-2 6-2 | | | | | | | | | |