TennisEdge's AI bot is backing Under 21.5 games at 1.93 in A. Krueger vs S. Zhang (Wuhan on 2026-10-13). Result: WON.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | A. Krueger | S. Zhang |
|---|---|---|
| Elo ratings-based, surface-weighted |
55.0% | 45.0% |
| Machine learning 29-feature gradient-boosted model |
57.6% | 42.4% |
| Serve / return point-by-point simulation |
32.4% | 67.6% |
| Blend what the bot actually prices off |
48.3% | 51.7% |
| Market implied de-vigged from the opening odds |
58.8% | 41.2% |
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. Krueger | hard | 1770 | 103–90 | 193 |
| S. Zhang | hard | 1690 | 114–95 | 209 |
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 Oct. 25, 2026.
A. Krueger leads 2–1 over 3 meetings. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| Oct. 13, 2026 | Wuhan | hard | A. Krueger | 2 - 0 |
| Jan. 5, 2026 | WTA Brisbane | hard | S. Zhang | 2 - 1 |
| Aug. 27, 2024 | WTA US Open | hard | A. Krueger | 2 - 1 |
| L | K. Siniakova | 0 - 2 | Oct. 25, 2026 |
| W | A. Li | 1 - 2 | Oct. 24, 2026 |
| W | T. Gibson | 0 - 2 | Oct. 23, 2026 |
| W | L. Tararudee | 0 - 2 | Oct. 21, 2026 |
| W | J. Tjen | 2 - 0 | Oct. 19, 2026 |
| L | T. Valentova | 2 - 0 | Oct. 25, 2026 |
| W | K. Day | 1 - 2 | Oct. 24, 2026 |
| L | W. Trongcharoenchaikul | 0 - 2 | Oct. 21, 2026 |
| L | T. Valentova | 2 - 1 | Oct. 20, 2026 |
| L | A. Krueger | 2 - 0 | Oct. 13, 2026 |
All Oct. 13, 2026 results & picks →