TennisEdge's AI model finds no betting value in S. Kraus vs A. Kalinskaya (Bad Homburg on 2026-06-22) — the market is efficient, with A. Kalinskaya favoured at 1.40.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | S. Kraus | A. Kalinskaya |
|---|---|---|
| Elo ratings-based, surface-weighted |
35.2% | 64.8% |
| Machine learning 29-feature gradient-boosted model |
31.1% | 68.9% |
| Blend what the bot actually prices off |
33.2% | 66.8% |
| Market implied de-vigged from the opening odds |
32.3% | 67.7% |
We publish how well these score against the closing market, including where they lose: how accurate are tennis predictions?
| Player | Surface | Elo | Record | Matches |
|---|---|---|---|---|
| S. Kraus | clay | 1776 | 175–88 | 263 |
| A. Kalinskaya | hard | 1880 | 126–78 | 204 |
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 14, 2026.
A. Kalinskaya leads 1–0 over 1 meeting. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| June 22, 2026 | Bad Homburg | grass | A. Kalinskaya | 2 - 0 |
| L | A. Charaeva | 2 - 1 | July 22, 2026 |
| W | D. Semenistaja | 1 - 2 | July 21, 2026 |
| W | J. Grabher | 0 - 2 | July 19, 2026 |
| W | M. Bassols | 1 - 2 | July 18, 2026 |
| W | E. Andreeva | 0 - 2 | July 17, 2026 |
| L | J. Pegula | 2 - 0 | July 31, 2026 |
| W | J. Tjen | 1 - 2 | July 30, 2026 |
| W | D. Kasatkina | 0 - 2 | July 28, 2026 |
| L | B. Bencic | 2 - 1 | July 3, 2026 |
| W | D. Parry | 1 - 2 | July 1, 2026 |
All June 22, 2026 results & picks →
The mathematical models show a marginal 0.5% edge for S. Kraus, but the Kelly criterion correctly suggests 0 units, indicating the edge is statistically insignificant. Qualitative factors heavily favor A. Kalinskaya, who possesses a dominant 296-point ELO advantage on grass and is far fresher (1 match/14 days vs Kraus's 5 matches/15 sets). Backing a fatigued, lower-class underdog with zero Kelly sizing is not a viable strategy.