Alvaro Guillen Meza leads 2 to 1 over 3 singles meetings since 2023. Last meeting on 27/09/2025 at Buenos Aires Challenger.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 27/09/2025 | Buenos Aires Challenger | Semi-final | clay | Barrena | 6-1 6-1 |
| 13/02/2025 | M25 Punta del Este | Round 1 | clay | Meza | 6-3 2-6 6-3 |
| 05/11/2023 | Lima 2 Challenger | Qualifying 1 | clay | Meza | 7-5 6-1 |
| clay | Meza 2 - 1 Barrena |
| 2025 | Meza 1 - 1 Barrena |
| 2023 | Meza 1 - 0 Barrena |
171 wins, 134 losses since 2021 (56.1%).
Last matches: D D D D D
192 wins, 142 losses since 2021 (57.5%).
Last matches: V D D V D
Alvaro Guillen Meza leads 2 to 1 over 3 singles meetings since 2023.
On 27/09/2025, at Buenos Aires Challenger (Semi-final): Alex Barrena won 6-1 6-1.