Stadium: Pista 1 Round: 19 Ground: Hardcourt outdoor
| Challenger Mallorca | 2021/08/30 09:15 | Thomaz Bellucci v Rafael Giotis | 6-7,2-6 |
| ITF M15 Huy | 2021/08/22 08:55 | Alexandre Aubriot v Rafael Giotis | 6-3,6-4 |
| ITF M15 Monastir | 2021/06/13 08:00 | Rafael Giotis v Keenan Mayo | 4-6,0-6 |
| ITF M25 Vic | 2021/05/16 07:00 | Vicente O Moratalla v Rafael Giotis | 6-3,6-4 |
| ITF M15 Valldoreix | 2021/05/09 13:00 | Francisco Cabral v Rafael Giotis | 7-5,6-0 |
| ITF M15 Las Palmas | 2021/04/26 10:30 | Inaki Cabrera Bello v Rafael Giotis | 6-3,6-4 |
| ITF M15 Las Palmas | 2021/04/25 14:30 | Rafael Giotis v Martin Breysach | 5-7,6-2,10-4 |
| ITF M25 Reus | 2021/04/11 07:00 | Kenny de Schepper v Rafael Giotis | 6-3,6-4 |
| Challenger Mallorca | 2021/08/30 08:00 | Joan Nadal v Nick Chappell | 1-6,2-6 |
| Challenger Prague | 2021/08/23 10:00 | Kaichi Uchida v Nick Chappell | 6-4,3-6,6-1 |
| ITF M25 Prostejov | 2021/08/19 08:15 | Alex Rybakov v Nick Chappell | 6-2,7-6 |
| ITF M25 Prostejov | 2021/08/18 10:30 | Daniel Paty v Nick Chappell | 4-6,3-6 |
| ITF M25 Prostejov | 2021/08/17 07:55 | Robert Rumler v Nick Chappell | 0-6,4-6 |
| Challenger Segovia | 2021/07/25 14:00 | Luca Vanni v Nick Chappell | 6-1,6-2 |
| Challenger Nur-Sultan | 2021/07/23 05:00 | Oleksii Krutykh v Nick Chappell | 3-6,6-3,7-5 |
| Challenger Nur-Sultan | 2021/07/21 06:30 | Nick Chappell v Sergiy Stakhovsky | 7-6,6-4 |