H2H data updated: 2026-09-08 00:00 UTC
Compare the head-to-head record, career totals, season-by-season performance, and match log for Nicolas Mejia vs Juan Alejandro Hernandez Serrano.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Nicolas Mejia | 6-3 3-6 7-5 | Juan Alejandro Hernandez Serrano | Match data | Jul 19, 2021 | Q1 | Los Cabos Open | ATP 250 | Hard |
1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nicolas Mejia | #115 | #115 | 548 | 1,601 | 2 | 6 | 25.0% | 0 | 0 | 0 | 0 | 0 | 0 |
| Juan Alejandro Hernandez Serrano | — | — | — | 1,500 | — | — | — | 0 | 0 | 0 | 0 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Age | Nicolas Mejia | Juan Alejandro Hernandez Serrano | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 21 | 2021 | 0–1 | 0.0% | #286 | 1,513 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 2024 | 0–1 | 0.0% | #219 | 1,467 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 2025 | 0–1 | 0.0% | #170 | 1,479 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 2026 | 2–3 | 40.0% | #115 | 1,566 | 0 | 0 | — | — | — | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Age | Nicolas Mejia | Juan Alejandro Hernandez Serrano | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2019 | 1494 | 103.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2021 | 1514 | 98.9 | -0.79 | -2.03 | 0.664 | 42.6% | — | — | — | 0.0% | -3.50 | — | — | — | +0.32 | 2020 | 1482 | 98.3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2022 | 1507 | 103.6 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2021 | 1459 | 97.6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2023 | 1496 | 102.5 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 1468 | 103.3 | -2.74 | -0.25 | 0.687 | 41.4% | +15 | — | — | 28.6% | -2.14 | 1–0 | — | — | +0.27 |
| 24 | 2024 | 1467 | 109.6 | +0.60 | -2.67 | 0.764 | 43.5% | — | — | — | 0.0% | -3.00 | — | 0–1 | — | -0.13 | 2023 | 1460 | 97.8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2025 | 1479 | 103.8 | -2.89 | -3.46 | 0.543 | 41.0% | — | — | — | 0.0% | -3.50 | — | — | — | +0.11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2026 | 1567 | 114.0 | -0.34 | -1.83 | 0.865 | 47.6% | -32 | — | — | 40.0% | -0.87 | 1–0 | 2–3 (40%) | — | +0.35 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1602 | 112.4 | -0.60 | -2.16 | 0.780 | 45.6% | -32 | — | — | 28.6% | -1.57 | 1–0 | 2–4 (33%) | — | +8.13 | — | 1500 | 100.4 | -2.74 | -0.25 | 0.687 | 41.4% | +15 | — | — | 28.6% | -2.14 | 1–0 | — | — | +9.00 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Adam Walton | 0 | 1 | 1 | Aug 14, 2026 | H2H |
| Lorenzo Musetti | 0 | 1 | 1 | Aug 5, 2026 | H2H |
| Martin Landaluce | 1 | 0 | 1 | Aug 3, 2026 | H2H |
| Michael Zheng | 0 | 1 | 1 | Jul 1, 2026 | H2H |
| Adolfo Daniel Vallejo | 1 | 0 | 1 | Jun 29, 2026 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Felix Auger-Aliassime | 0 | 1 | 1 | Aug 4, 2022 | — |
| Nicolas Barrientos | 1 | 0 | 1 | Aug 3, 2022 | — |
| Pablo Andujar | 0 | 1 | 1 | Feb 23, 2022 | — |