TennisEdge's AI model finds no betting value in I. Begu vs S. Lamens (French Open on 2026-05-20) — the market is efficient, with I. Begu favoured at 1.61.
Independent estimates of who wins, each from a different method. The blend is what the bot prices against the market.
| Method | I. Begu | S. Lamens |
|---|---|---|
| Elo ratings-based, surface-weighted |
70.8% | 29.2% |
| Machine learning 29-feature gradient-boosted model |
78.3% | 21.7% |
| Serve / return point-by-point simulation |
59.4% | 40.6% |
| Blend what the bot actually prices off |
69.5% | 30.5% |
| Market implied de-vigged from the opening odds |
57.7% | 42.3% |
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 May 20, 2026.
S. Lamens leads 1–0 over 1 meeting. Full record.
| Date | Event | Surface | Winner | Score |
|---|---|---|---|---|
| May 20, 2026 | French Open | clay | S. Lamens | 2 - 1 |
| L | K. Swan | 0 - 2 | June 30, 2026 |
| L | K. Muchova | 2 - 0 | June 24, 2026 |
| W | V. Williams | 1 - 2 | June 22, 2026 |
| W | D. Parry | 0 - 2 | June 21, 2026 |
| W | T. Korpatsch | 2 - 0 | June 20, 2026 |
| L | E. Pridankina | 2 - 1 | June 24, 2026 |
| W | A. Rajecki | 0 - 2 | June 23, 2026 |
| L | P. Badosa | 0 - 2 | June 16, 2026 |
| W | D. Galfi | 2 - 0 | June 15, 2026 |
| W | T. J. Brockmann | 2 - 0 | June 15, 2026 |
All May 20, 2026 results & picks →
Begu's Clay ELO (1795) is vastly superior to Lamens (1641), creating a significant 12% model-market divergence on her specialist surface.