Mathieu, Sebastien
Current rating: 1489
Record: 5-6-1
| Grand Prix Strasbourg 2013 (legacy) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 3 | Zimmermann, Martin 8986 (1377) | Won 1-0 | +161463 |
| 2legacy | 268 | Vornhusen, Gunnar (1418) | Draw 1-1 | 01463 |
| 3legacy | 201 | Durafour, Arnaud (1409) | Won 0-0 | +171480 |
| 4legacy | 209 | Theijssen, Tom (1501) | Won 2-1 | +181498 |
| 5legacy | 103 | Leitgeb, Vladimir (1485) | Won 2-1 | +181516 |
| 6legacy | 48 | Euser, Kasper (1465) | Lost 1-2 | -191497 |
| 7legacy | 134 | Tobiasch, Marc (1757) | Lost 0-2 | -141483 |
| 8legacy | 215 | Cassini, Gregory (1722) | Won 2-1 | +231506 |
| 9legacy | 154 | Vilayphiou, Nicolas (1550) | Lost 1-2 | -171489 |
| average opponent: 1520record: 5-3-1 | new rating: 1489 | |||
| Grand Prix Paris 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 189 | Fishman, Youv (1500) | Lost 0-2 | -181482 |
| 2sealed | 316 | Bering, Juergen (1521) | Lost 0-2 | -171465 |
| 3sealed | 328 | Menier, Vincent (1464) | Lost 0-2 | -181447 |
| average opponent: 1495record: 0-3 | new rating: 1447 | |||