TennisEdge's AI model finds no betting value in D. Vallejo vs N. Mejia (Wimbledon on 2026-06-29) — the market is efficient, with D. Vallejo favoured at 1.61.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | D. Vallejo | N. Mejia |
|---|---|---|
| Elo ratings-based, surface-weighted |
43.6% | 56.4% |
| Machine learning 29-feature gradient-boosted model |
53.3% | 46.7% |
| Blend what the bot actually prices off |
51.8% | 48.2% |
| Market implied de-vigged from the opening odds |
58.8% | 41.2% |
We publish how well these score against the closing market, including where they lose: how accurate are tennis predictions?
| Player | Surface | Elo | Record | Matches |
|---|---|---|---|---|
| D. Vallejo | clay | 1769 | 137–86 | 223 |
| N. Mejia | hard | 1591 | 88–100 | 188 |
Our own ratings, computed from match results since 2018. Players with fewer than 5 rated matches are omitted rather than shown at a provisional starting value. Last updated July 21, 2026.
N. Mejia leads 1–0 over 1 meeting. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| June 29, 2026 | Wimbledon | grass | N. Mejia | 3 - 1 |
| L | J. Shang | 0 - 2 | Aug. 2, 2026 |
| L | K. Feldbausch | 0 - 2 | July 21, 2026 |
| L | L. Darderi | 1 - 2 | July 18, 2026 |
| W | S. Travaglia | 2 - 0 | July 17, 2026 |
| W | B. Van De Zandschulp | 1 - 2 | July 15, 2026 |
| W | M. Landaluce | 2 - 1 | Aug. 3, 2026 |
| W | M. Trungelliti | 1 - 2 | Aug. 1, 2026 |
| L | A. Hernandez | 0 - 2 | July 26, 2026 |
| W | M. Soto | 2 - 0 | July 12, 2026 |
| W | J. P. Varillas | 2 - 1 | July 11, 2026 |
All June 29, 2026 results & picks →
Math-only prediction: no LLM calls used