TennisEdge's AI model finds no betting value in T. Kostovic vs E. Mandlik (French Open on 2026-05-19) — the market is efficient, with T. Kostovic favoured at 1.50.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | T. Kostovic | E. Mandlik |
|---|---|---|
| Elo ratings-based, surface-weighted |
63.9% | 36.1% |
| Machine learning 29-feature gradient-boosted model |
78.6% | 21.4% |
| Serve / return point-by-point simulation |
55.6% | 44.4% |
| Blend what the bot actually prices off |
66.0% | 34.0% |
| Market implied de-vigged from the opening odds |
62.5% | 37.5% |
We publish how well these score against the closing market, including where they lose: how accurate are tennis predictions?
| Player | Surface | Elo | Record | Matches |
|---|---|---|---|---|
| T. Kostovic | clay | 1583 | 52–32 | 84 |
| E. Mandlik | hard | 1604 | 98–72 | 170 |
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 16, 2026.
T. Kostovic leads 1–0 over 1 meeting. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| May 19, 2026 | French Open | clay | T. Kostovic | 2 - 0 |
| 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 |
| L | L. Stefanini | 0 - 2 | July 22, 2026 |
| L | K. Cross | 1 - 2 | July 18, 2026 |
| W | L. Ma | 2 - 1 | July 17, 2026 |
| W | A. Arseneault | 2 - 1 | July 16, 2026 |
| W | A. Tabunshchyk | 2 - 0 | July 15, 2026 |
All May 19, 2026 results & picks →
Math-only prediction: no LLM calls used