TennisEdge's AI model finds no betting value in S. Zhang vs G. Ruse (Bad Homburg on 2026-06-20) — the market is efficient, with G. Ruse favoured at 1.57.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | S. Zhang | G. Ruse |
|---|---|---|
| Elo ratings-based, surface-weighted |
42.0% | 58.0% |
| Machine learning 29-feature gradient-boosted model |
34.8% | 65.2% |
| Blend what the bot actually prices off |
42.0% | 58.0% |
| Market implied de-vigged from the opening odds |
41.1% | 58.9% |
We publish how well these score against the closing market, including where they lose: how accurate are tennis predictions?
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 Aug. 3, 2026.
Level at 1–1 over 2 meetings. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| June 20, 2026 | Bad Homburg | grass | G. Ruse | 2 - 0 |
| June 16, 2022 | Birmingham | grass | S. Zhang | 2 - 1 |
| W | Y. Putintseva | 0 - 2 | Aug. 3, 2026 |
| L | G. Knutson | 1 - 2 | July 25, 2026 |
| L | K. Muchova | 2 - 0 | July 1, 2026 |
| W | B. Andreescu | 0 - 2 | June 29, 2026 |
| L | G. Ruse | 0 - 2 | June 20, 2026 |
| W | P. Stearns | 2 - 0 | Aug. 3, 2026 |
| L | K. Quevedo | 2 - 0 | July 14, 2026 |
| L | C. McNally | 0 - 2 | June 30, 2026 |
| L | K. Muchova | 0 - 2 | June 26, 2026 |
| W | E. Navarro | 0 - 2 | June 25, 2026 |
All June 20, 2026 results & picks →
Math-only prediction: no LLM calls used