Stadium: Hard 20 Round: 26 Ground: Hardcourt outdoor
| ITF - M15 Heraklion | 2021/06/02 10:55 | Marvin Moeller v Antonio Cayetano March | 3-6,6-7 |
| ITF - M15 Valldoreix | 2021/05/11 09:00 | Antonio Cayetano March v Rishab Agarwal | 7-5,4-6,10-12 |
| ITF - M15 Valldoreix | 2021/05/10 10:00 | Jaume Pla Malfeito v Antonio Cayetano March | 3-6,3-6 |
| ITF - M15 Valldoreix | 2021/05/09 14:00 | Antonio Cayetano March v Lluc Mir Anglada | 6-4,6-3 |
| Challenger Salinas 2 | 2021/04/28 15:00 | Nicolas Mejia v Antonio Cayetano March | 6-1,6-2 |
| Challenger - Salinas | 2021/04/19 18:55 | Jelle Sels v Antonio Cayetano March | 6-4,6-3 |
| ITF - M15 - Antalya | 2021/03/30 11:00 | Benjamin Hassan v Antonio Cayetano March | 1-6,6-3,6-1 |
| ITF - M15 Monastir | 2021/03/09 08:30 | Juan Bautista Torres v Antonio Cayetano March | 6-1,6-0 |
| ITF - M15 Heraklion | 2021/06/02 11:20 | William Griffith v Federico Arnaboldi | 3-6,7-6,3-6 |
| ITF - M15 Heraklion | 2021/06/01 06:30 | Federico Arnaboldi v Sahar Simon | 7-6,6-2 |
| ITF - M15 Heraklion | 2021/05/31 06:30 | Federico Arnaboldi v Lior Goldenberg | 6-3,6-1 |
| ITF - M15 Heraklion | 2021/05/30 08:00 | Federico Arnaboldi v George Houghton | 7-6,6-3 |
| ITF - M15 Heraklion | 2021/05/29 06:55 | Ze Zhang v Federico Arnaboldi | 6-2,6-1 |
| ITF - M15 Heraklion | 2021/05/28 06:30 | Yshai Oliel v Federico Arnaboldi | 6-7,6-2,3-6 |
| ITF - M15 Heraklion | 2021/05/26 10:40 | Takuto Niki v Federico Arnaboldi | 3-6,4-6 |
| ITF - M15 Heraklion | 2021/05/25 06:30 | Federico Arnaboldi v Matthew Dellavedova | 6-2,6-3 |