TennisEdge's AI bot is backing S. Zhang +4.0 (game handicap) at 1.94 in T. Valentova vs S. Zhang (Tokyo on 2026-10-25). Result: LOST.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | T. Valentova | S. Zhang |
|---|---|---|
| Elo ratings-based, surface-weighted |
66.1% | 33.9% |
| Machine learning 29-feature gradient-boosted model |
56.3% | 43.7% |
| Serve / return point-by-point simulation |
46.3% | 53.7% |
| Blend what the bot actually prices off |
56.2% | 43.8% |
| Market implied de-vigged from the opening odds |
66.3% | 33.7% |
We publish how well these score against the closing market, including where they lose: how accurate are tennis predictions?
| Player | Surface | Elo | Record | Matches |
|---|---|---|---|---|
| T. Valentova | hard | 1795 | 83–28 | 111 |
| S. Zhang | hard | 1690 | 114–95 | 209 |
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 Nov. 5, 2026.
T. Valentova leads 2–0 over 2 meetings. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| Oct. 25, 2026 | Tokyo | hard | T. Valentova | 2 - 0 |
| Oct. 20, 2026 | Osaka | hard | T. Valentova | 2 - 1 |
| L | A. Eala | 0 - 2 | Nov. 5, 2026 |
| W | H. Sakatsume | 0 - 2 | Nov. 3, 2026 |
| L | M. Pohankova | 0 - 2 | Oct. 27, 2026 |
| W | S. Zhang | 2 - 0 | Oct. 25, 2026 |
| W | E. S. Liang | 1 - 2 | Oct. 24, 2026 |
| L | T. Valentova | 2 - 0 | Oct. 25, 2026 |
| W | K. Day | 1 - 2 | Oct. 24, 2026 |
| L | W. Trongcharoenchaikul | 0 - 2 | Oct. 21, 2026 |
| L | T. Valentova | 2 - 1 | Oct. 20, 2026 |
| L | A. Krueger | 2 - 0 | Oct. 13, 2026 |
All Oct. 25, 2026 results & picks →