TennisEdge's AI model finds no betting value in S. Waltert vs T. Kostovic (Makarska on 2026-06-02) — the market is efficient, with S. Waltert favoured at 1.66.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | S. Waltert | T. Kostovic |
|---|---|---|
| Elo ratings-based, surface-weighted |
68.1% | 31.9% |
| Machine learning 29-feature gradient-boosted model |
82.4% | 17.6% |
| Serve / return point-by-point simulation |
65.5% | 34.5% |
| Blend what the bot actually prices off |
72.0% | 28.0% |
| Market implied de-vigged from the opening odds |
55.9% | 44.1% |
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. Waltert | clay | 1732 | 123–80 | 203 |
| T. Kostovic | clay | 1583 | 52–32 | 84 |
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 22, 2026.
S. Waltert leads 1–0 over 1 meeting. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| June 2, 2026 | Makarska | clay | S. Waltert | 2 - 0 |
| L | M. Sherif | 1 - 2 | July 22, 2026 |
| L | K. Kawa | 2 - 0 | July 14, 2026 |
| L | P. Badosa | 0 - 2 | July 11, 2026 |
| W | K. Quevedo | 0 - 2 | July 10, 2026 |
| W | L. Romero Gormaz | 2 - 0 | July 9, 2026 |
| L | M. Kubka | 1 - 2 | Aug. 3, 2026 |
| W | V. Wolff | 0 - 2 | July 26, 2026 |
| W | A. Siskova | 0 - 2 | July 25, 2026 |
| W | J. Pastikova | 0 - 2 | July 24, 2026 |
| W | K. Supova | 0 - 2 | July 23, 2026 |
All June 2, 2026 results & picks →
Math-only prediction: no LLM calls used