TennisEdge's AI model finds no betting value in A. Kalinskaya vs C. Osorio (French Open on 2026-05-30) — the market is efficient, with A. Kalinskaya favoured at 1.91.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | A. Kalinskaya | C. Osorio |
|---|---|---|
| Elo ratings-based, surface-weighted |
57.6% | 42.4% |
| Machine learning 29-feature gradient-boosted model |
70.7% | 29.3% |
| Serve / return point-by-point simulation |
45.1% | 54.9% |
| Blend what the bot actually prices off |
57.8% | 42.2% |
| Market implied de-vigged from the opening odds |
51.0% | 49.0% |
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. Kalinskaya | hard | 1880 | 126–78 | 204 |
| C. Osorio | hard | 1807 | 72–65 | 137 |
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 31, 2026.
Level at 2–2 over 4 meetings. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| May 30, 2026 | French Open | clay | A. Kalinskaya | 2 - 1 |
| Sept. 27, 2025 | Beijing | hard | C. Osorio | 2 - 1 |
| Feb. 25, 2022 | Guadalajara | hard | A. Kalinskaya | 2 - 0 |
| June 28, 2021 | Wimbledon | grass | C. Osorio | 2 - 1 |
| 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 |
| W | L. Stefanini | 0 - 2 | Aug. 2, 2026 |
| L | A. Zakharova | 0 - 2 | July 29, 2026 |
| W | S. Hunter | 2 - 0 | July 28, 2026 |
| L | L. Noskova | 1 - 2 | July 2, 2026 |
| W | S. Waltert | 2 - 0 | June 30, 2026 |
All May 30, 2026 results & picks →
Math-only prediction: no LLM calls used