| Challenger Series TT | 09/11 11:50 | - | Oliver Both v Guillaume Alcayde | W | 1-3 | |
| Challenger Series TT | 09/11 09:50 | - | Guillaume Alcayde v Jeromy Loffler | L | 0-3 | |
| Challenger Series TT | 09/11 07:50 | - | Guillaume Alcayde v Yannick Vostes | L | 0-3 | |
| Challenger Series TT | 07/28 09:50 | - | Daniel Rinderer v Guillaume Alcayde | L | 3-2 | |
| Challenger Series TT | 07/28 06:30 | - | Marius Henninger v Guillaume Alcayde | L | 3-1 | |
| Challenger Series TT | 07/27 17:10 | - | Guillaume Alcayde v Antonin Gavlas | W | 3-2 | |
| Challenger Series TT | 07/27 14:30 | - | Guillaume Alcayde v Damian Zech | W | 3-0 | |
| Challenger Series TT | 07/27 13:10 | - | Dauud Cheaib v Guillaume Alcayde | L | 3-0 | |
| Challenger Series TT | 07/27 10:30 | - | Yoan Rebetez v Guillaume Alcayde | L | 3-2 | |
| Challenger Series TT | 07/27 07:50 | - | Dennis Klein v Guillaume Alcayde | L | 3-1 | |
| Challenger Series TT | 07/25 12:50 | 50 | Marius Henninger v Guillaume Alcayde | W | 1-3 | |
| Challenger Series TT | 07/25 12:05 | 2 | Yannick Vostes v Guillaume Alcayde | L | 3-0 | |
| Challenger Series TT | 07/25 10:30 | - | Marius Henninger v Guillaume Alcayde | W | 1-3 | |
| Challenger Series TT | 07/25 06:30 | - | Igor Zavadskij v Guillaume Alcayde | W | 1-3 | |
| Challenger Series TT | 07/25 06:30 | - | Ihor Zavadskyi v Guillaume Alcayde | W | 1-3 | |
| Challenger Series TT | 07/24 18:30 | - | Guillaume Alcayde v Hannes Hormann | W | 3-1 | |
| Challenger Series TT | 07/24 15:10 | - | Guillaume Alcayde v Bohdan Sinkevych | W | 3-0 | |
| Challenger Series TT | 07/24 13:10 | - | Armin Alicic v Guillaume Alcayde | W | 0-3 | |
| Challenger Series TT | 07/24 10:30 | - | Yannick Vostes v Guillaume Alcayde | L | 3-2 | |
| Challenger Series TT | 07/24 07:50 | - | Antonin Gavlas v Guillaume Alcayde | L | 3-0 | |
| Challenger - Ochsenhausen | 03/11 09:30 | - | Alexander Valuch v Guillaume Alcayde | W | 0-3 | |
| Challenger - Ochsenhausen | 03/11 08:10 | - | Jordy Piccolin v Guillaume Alcayde | W | 2-3 | |
| Challenger - Ochsenhausen | 03/10 18:10 | - | Gaston Alto v Guillaume Alcayde | L | 3-1 | |
| Challenger - Ochsenhausen | 03/10 16:10 | - | Amirreza Abbasi v Guillaume Alcayde | L | 3-0 | |
| Challenger - Ochsenhausen | 03/10 13:30 | - | Lucas Moland v Guillaume Alcayde | L | 3-2 | |
| Challenger - Ochsenhausen | 03/10 12:10 | - | Michael Trink v Guillaume Alcayde | W | 2-3 | |
| Challenger - Ochsenhausen | 03/10 07:30 | - | Florian Bourrassaud v Guillaume Alcayde | L | 3-2 | |
| Challenger - Ochsenhausen | 03/08 13:50 | - | Guillaume Alcayde v Dillon Chambers | L | 1-3 | |
| Challenger - Ochsenhausen | 03/08 12:25 | - | Guilherme Teodoro v Guillaume Alcayde | L | 3-0 | |
| Challenger - Ochsenhausen | 03/08 11:30 | - | Guillaume Alcayde v Ryu Hiruta | W | 3-1 |