TennisEdge's AI bot is backing K. Mladenovic +6.5 (game handicap) at 1.54 in K. Mladenovic vs S. Costoulas (Jingshan on 2026-09-29). Result: WON.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | K. Mladenovic | S. Costoulas |
|---|---|---|
| Elo ratings-based, surface-weighted |
34.4% | 65.6% |
| Machine learning 29-feature gradient-boosted model |
39.2% | 60.8% |
| Serve / return point-by-point simulation |
36.0% | 64.0% |
| Blend what the bot actually prices off |
36.5% | 63.5% |
| Market implied de-vigged from the opening odds |
20.5% | 79.5% |
We publish how well these score against the closing market, including where they lose: how accurate are tennis predictions?
| Player | Surface | Elo | Record | Matches |
|---|---|---|---|---|
| K. Mladenovic | hard | 1448 | 87–88 | 175 |
| S. Costoulas | hard | 1523 | 137–86 | 223 |
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 Sept. 29, 2026.
S. Costoulas leads 1–0 over 1 meeting. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| Sept. 29, 2026 | Jingshan | hard | S. Costoulas | 2 - 0 |
| L | S. Costoulas | 0 - 2 | Sept. 29, 2026 |
| L | N. Hibino | 1 - 2 | Sept. 21, 2026 |
| L | E. Kalieva | 2 - 1 | Aug. 25, 2026 |
| L | T. Lemaitre | 1 - 1 | June 24, 2026 |
| L | V. Ryser | 0 - 2 | June 16, 2026 |
| L | L. Samson | 2 - 0 | Nov. 11, 2026 |
| W | A. Esquivel Useche | 2 - 0 | Nov. 9, 2026 |
| L | M. Bassols | 0 - 2 | Nov. 3, 2026 |
| L | V. Strakhova | 2 - 0 | Oct. 27, 2026 |
| L | D. Astakhova | 0 - 1 | Oct. 5, 2026 |
All Sept. 29, 2026 results & picks →