TennisEdge's AI model finds no betting value in H. Grenier vs L. Harris (French Open on 2026-05-18) — the market is efficient, with L. Harris favoured at 1.28.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | H. Grenier | L. Harris |
|---|---|---|
| Elo ratings-based, surface-weighted |
59.0% | 41.0% |
| Machine learning 29-feature gradient-boosted model |
61.0% | 39.0% |
| Serve / return point-by-point simulation |
61.0% | 39.0% |
| Blend what the bot actually prices off |
60.4% | 39.6% |
| Market implied de-vigged from the opening odds |
26.8% | 73.2% |
We publish how well these score against the closing market, including where they lose: how accurate are tennis predictions?
| Player | Surface | Elo | Record | Matches |
|---|---|---|---|---|
| H. Grenier | hard | 1583 | 148–117 | 265 |
| L. Harris | hard | 1749 | 98–64 | 162 |
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 16, 2026.
L. Harris leads 2–0 over 2 meetings. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| May 18, 2026 | French Open | clay | L. Harris | 2 - 0 |
| June 27, 2024 | ATP Wimbledon | grass | L. Harris | 3 - 1 |
| L | A. Santillan | 0 - 1 | July 16, 2026 |
| W | C. Vandermeersch | 2 - 0 | July 13, 2026 |
| L | M. U. Kask | 1 - 1 | July 7, 2026 |
| L | P. Inchauspe | 0 - 2 | July 2, 2026 |
| W | T. Berard | 2 - 1 | June 30, 2026 |
| W | H. Searle | 1 - 2 | Aug. 3, 2026 |
| L | A. Michelsen | 2 - 0 | July 23, 2026 |
| W | M. Echargui | 0 - 2 | July 20, 2026 |
| L | Y. Bu | 2 - 1 | June 2, 2026 |
| L | A. Pellegrino | 2 - 1 | May 20, 2026 |
All May 18, 2026 results & picks →
Math-only prediction: no LLM calls used