TennisEdge's AI model finds no betting value in O. Oliynykova vs M. Kessler (Wimbledon on 2026-06-29) — the market is efficient, with M. Kessler favoured at 1.12.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | O. Oliynykova | M. Kessler |
|---|---|---|
| Elo ratings-based, surface-weighted |
17.4% | 82.6% |
| Machine learning 29-feature gradient-boosted model |
37.1% | 62.9% |
| Blend what the bot actually prices off |
27.2% | 72.8% |
| Market implied de-vigged from the opening odds |
15.7% | 84.3% |
We publish how well these score against the closing market, including where they lose: how accurate are tennis predictions?
| Player | Surface | Elo | Record | Matches |
|---|---|---|---|---|
| O. Oliynykova | clay | 1771 | 174–75 | 249 |
| M. Kessler | hard | 1792 | 101–54 | 155 |
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 24, 2026.
M. Kessler leads 1–0 over 1 meeting. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| June 29, 2026 | Wimbledon | grass | M. Kessler | 2 - 0 |
| L | Ka. Pliskova | 0 - 2 | Aug. 3, 2026 |
| L | E. Avanesyan | Walk Over | July 24, 2026 |
| W | L. Romero Gormaz | 2 - 1 | July 23, 2026 |
| W | N. M. Schunk | 2 - 1 | July 21, 2026 |
| L | M. Sherif | 2 - 0 | July 18, 2026 |
| W | C. Brace | 2 - 0 | Aug. 3, 2026 |
| L | R. Zarazua | 2 - 0 | July 29, 2026 |
| L | A. Sabalenka | 2 - 0 | July 1, 2026 |
| W | O. Oliynykova | 0 - 2 | June 29, 2026 |
| L | M. Keys | 0 - 2 | June 25, 2026 |
All June 29, 2026 results & picks →
The mathematical model suggests an 8.6% edge on Oliynykova, but this is driven by an ML prediction (37%) that contradicts its own key drivers, all of which heavily favor Kessler (e.g., Hard Elo diff -582). Qualitatively, Kessler enters with strong grass-court wins over Kasatkina and Kalinina, while Oliynykova recently lost to an unrated player at Eastbourne. The 1.12 odds are prohibitive and offer no betting value; the model consensus is unreliable due to the ML anomaly.