Santiago Pesino leads 3 to 2 over 5 singles meetings since 2025. Last meeting on 12/10/2026 at M15 Maringa.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 12/10/2026 | M15 Maringa | Qualifying 2 | clay | Vertberger | |
| 31/08/2026 | M15 Trelew | Qualifiers | indoor hard | Vertberger | 6-7 3-5 |
| 24/08/2026 | M15 Mar Del Plata | Qualifying 2 | clay | Pesino | |
| 24/03/2026 | M15 Punta del Este | Qualifiers | clay | Pesino | 6-1 6-0 |
| 07/07/2025 | M15 Salta | Qualifiers | clay | Pesino |
| clay | Vertberger 1 - 3 Pesino |
| indoor hard | Vertberger 1 - 0 Pesino |
| 2026 | Vertberger 2 - 2 Pesino |
| 2025 | Vertberger 0 - 1 Pesino |
20 wins, 22 losses since 2021 (47.6%).
Last matches: D V V V V
24 wins, 20 losses since 2021 (54.5%).
Last matches: D V D D D
Santiago Pesino leads 3 to 2 over 5 singles meetings since 2025.
On 12/10/2026, at M15 Maringa (Qualifying 2): Ian Vertberger won.