TennisEdge's AI model finds no betting value in A. Sabalenka vs M. Kessler (Wimbledon on 2026-07-01) — the market is efficient, with A. Sabalenka favoured at 1.06.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | A. Sabalenka | M. Kessler |
|---|---|---|
| Elo ratings-based, surface-weighted |
78.7% | 21.3% |
| Machine learning 29-feature gradient-boosted model |
81.2% | 18.8% |
| Serve / return point-by-point simulation |
78.7% | 21.3% |
| Blend what the bot actually prices off |
83.4% | 16.6% |
| Market implied de-vigged from the opening odds |
92.1% | 7.9% |
We publish how well these score against the closing market, including where they lose: how accurate are tennis predictions?
| Player | Surface | Elo | Record | Matches |
|---|---|---|---|---|
| A. Sabalenka | hard | 2224 | 196–58 | 254 |
| 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 March 28, 2026.
A. Sabalenka leads 2–0 over 2 meetings. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| July 1, 2026 | Wimbledon | grass | A. Sabalenka | 2 - 0 |
| March 9, 2025 | Indian Wells | hard | A. Sabalenka | 2 - 0 |
| L | N. Osaka | 0 - 2 | July 5, 2026 |
| W | J. Ostapenko | 2 - 0 | July 3, 2026 |
| W | M. Kessler | 2 - 0 | July 1, 2026 |
| W | T. Kostovic | 2 - 0 | June 29, 2026 |
| L | J. Pegula | 1 - 2 | June 20, 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 July 1, 2026 results & picks →
Wimbledon R2 (1/32) - grass - A. Sabalenka vs M. Kessler MODELS ELO Sabalenka 78.7% ML Sabalenka 81.2% Serve Sabalenka 78.7% Model Sabalenka 83.4% Market Sabalenka 92.1% (1.06 / 12.4), devig Kessler 7.9% 'Value' flagged on Kessler: model 16.6% vs market 7.9% (+8.8% edge) FORM - SABALENKA (world #1, Elite) W Kostovic (1755 Strong) 6-2 6-3 DOM Wimbledon R1, yesterday L Pegula (1865 Elite) 4-6 7-6 0-6 Berlin SF (bageled in 3rd) W Bartunkova (1794) 2-6 7-6 6-4 GRIND W Alexandrova (1780) 6-4 6-4 W Osaka (1880 Elite) 7-5 6-3 ; W Kasatkina 6-0 7-5 Deep, elite, dominant R1 on grass. FORM - KESSLER (journeyman, ~1600 level) W Oliynykova (1405 Weak) 6-0 6-0 DOM-but-weak Wimbledon R1 L Keys (1837 Strong) 3-6 1-6 blown out, Eastbourne QF W Kalinina (1649) 6-4 6-3 ; W Kasatkina (1666) 6-3 7-6 (best grass win) L Volynets (1609) 3-6 3-6 ; L Pliskova ; L Jovic 6-7 6-7 Strasbourg title 17 May but on CLAY, ~44d ago. Loses routinely to mid-tier; no grass weapon to trouble #1. FATIGUE Roughly equal - both played yesterday, back-to-back. Sabalenka 311min/4 matches 14d ; Kessler 279min/5. No edge for dog. NARRATIVE Let-down: Strasbourg Final won ~44d ago -> None (too old, wrong surface) Venue: first Wimbledon meeting, no edge either way. VERDICT Model 'value' on Kessler @12.4 is illusory - it stems from the ensemble under-rating a dominant, in-form world #1 in a R2 grass match, NOT from Kessler being live. Models AND market agree Sabalenka wins comfortably (80-92%); the only disagreement is magnitude, which manufactures fake longshot value. Qualitative read kills it: Kessler loses to 1600-level players and got bageled by Keys days ago. No edge. PASS.