TennisEdge's AI model finds no betting value in C. Wong vs B. Harris (French Open on 2026-05-19) — the market is efficient, with C. Wong favoured at 1.53.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | C. Wong | B. Harris |
|---|---|---|
| Elo ratings-based, surface-weighted |
33.9% | 66.1% |
| Machine learning 29-feature gradient-boosted model |
39.5% | 60.5% |
| Blend what the bot actually prices off |
36.7% | 63.3% |
| Market implied de-vigged from the opening odds |
60.8% | 39.2% |
We publish how well these score against the closing market, including where they lose: how accurate are tennis predictions?
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 Aug. 1, 2026.
C. Wong leads 3–2 over 5 meetings. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| June 15, 2026 | Nottingham | grass | B. Harris | 2 - 1 |
| May 19, 2026 | French Open | clay | C. Wong | 2 - 1 |
| Aug. 22, 2025 | US Open | hard | C. Wong | 2 - 0 |
| March 11, 2025 | Cap Cana | hard | C. Wong | 2 - 1 |
| June 12, 2024 | Nottingham Challenger Men | grass | B. Harris | 2 - 0 |
| L | A. Gea | 0 - 2 | Aug. 1, 2026 |
| W | J. Brooksby | 2 - 0 | July 31, 2026 |
| W | J. Lehecka | 1 - 2 | July 30, 2026 |
| W | Dar. Blanch | 2 - 0 | July 28, 2026 |
| L | J. Wolf | 2 - 0 | July 23, 2026 |
| L | A. Shelbayh | 2 - 0 | July 25, 2026 |
| L | D. Suresh | 2 - 0 | July 21, 2026 |
| L | K. Khachanov | 3 - 1 | June 30, 2026 |
| W | Y. Zhou | 1 - 3 | June 25, 2026 |
| W | Z. Piros | 0 - 2 | June 24, 2026 |
All May 19, 2026 results & picks →
Math-only prediction: no LLM calls used