Juan Manuel La Serna leads 3 to 0 over 3 singles meetings since 2025. Last meeting on 25/03/2026 at Bucaramanga Challenger.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 25/03/2026 | Bucaramanga Challenger | Round 2 | clay | Serna | 3-6 7-6(5) 1-6 |
| 24/10/2025 | M15 Santiago | Quarter-final | clay | Serna | 6-7 0-5 |
| 18/10/2025 | M15 Santiago | Semi-final | clay | Serna | 6-4 4-6 3-6 |
| clay | Serna 3 - 0 Zarate |
| 2026 | Serna 1 - 0 Zarate |
| 2025 | Serna 2 - 0 Zarate |
139 wins, 94 losses since 2021 (59.7%).
Last matches: D V V D V
98 wins, 64 losses since 2021 (60.5%).
Last matches: V V V V D
Juan Manuel La Serna leads 3 to 0 over 3 singles meetings since 2025.
On 25/03/2026, at Bucaramanga Challenger (Round 2): Juan Manuel La Serna won 3-6 7-6(5) 1-6.