TennisEdge's AI model finds no betting value in J. Ostapenko vs F. Jones (Eastbourne on 2026-06-22) — the market is efficient, with J. Ostapenko favoured at 1.31.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | J. Ostapenko | F. Jones |
|---|---|---|
| Elo ratings-based, surface-weighted |
86.9% | 13.1% |
| Machine learning 29-feature gradient-boosted model |
63.9% | 36.1% |
| Blend what the bot actually prices off |
75.4% | 24.6% |
| Market implied de-vigged from the opening odds |
72.4% | 27.6% |
We publish how well these score against the closing market, including where they lose: how accurate are tennis predictions?
| Player | Surface | Elo | Record | Matches |
|---|---|---|---|---|
| J. Ostapenko | hard | 1767 | 88–73 | 161 |
| F. Jones | clay | 1786 | 126–51 | 177 |
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 March 23, 2026.
J. Ostapenko leads 1–0 over 1 meeting. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| June 22, 2026 | Eastbourne | grass | J. Ostapenko | 2 - 0 |
| L | A. Sabalenka | 2 - 0 | July 3, 2026 |
| W | A. Ruzic | 2 - 0 | July 1, 2026 |
| W | H. Dart | 2 - 1 | June 29, 2026 |
| L | T. Maria | 1 - 0 | June 26, 2026 |
| W | Z. Sonmez | 2 - 0 | June 25, 2026 |
| L | K. Quevedo | 1 - 0 | Aug. 1, 2026 |
| W | A. Rame | 2 - 0 | July 31, 2026 |
| W | L. Ciric Bagaric | 2 - 0 | July 30, 2026 |
| W | C. Paquet | 2 - 1 | July 28, 2026 |
| W | F. Ferro | 2 - 1 | July 26, 2026 |
All June 22, 2026 results & picks →
The consensus model assigns Ostapenko a 73.9% win probability, creating a marginal 1.5% edge over the devigged market odds of 72.4%. However, the ELO (86.9%) and ML (63.9%) models are in stark disagreement, failing the >90% consensus threshold required for heavy favorite bets. While Ostapenko is a rested former champion with strong grass metrics, the risk-reward at 1.31 odds is poor, as one upset erases over three winning bets. With Kelly suggesting 0.0 units and the ML model actually showing a negative edge, the prudent action is to pass on this low-value favorite.