Decock, Jerome
Current rating: 1577
Record: 11-7-1
| Grand Prix Tours 1999 (MMQ limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 173 | peraldi, romain (1500) | Won 2-0 | +181500 |
| 2sealed | 187 | Olivieri, Nicolas (1457) | Won 2-0 | +171517 |
| 3sealed | 153 | Desjardins, Pascal (1510) | Won 2-0 | +181535 |
| 4sealed | 151 | Bongiovanni, Mauro (1651) | Won 2-1 | +201555 |
| 5sealed | 135 | Garcia, Gerard (1575) | Won 2-1 | +191574 |
| 6sealed | 54 | Jeudon, Florent (1562) | Won 2-0 | +171591 |
| 7sealed | 69 | Guilleux, Vincent (1593) | Won 2-1 | +181609 |
| 8sealed | 27 | Hajek, Jorn (1586) | Won 0-0 | +181627 |
| 9draft | 1 | Hardy, Gregoire (1627) | Lost 0-2 | -181609 |
| 10draft | 4 | Strakhov, Alexander (1599) | Won 2-0 | +181627 |
| 11draft | 4 | Canu, Franck (1590) | Lost 0-2 | -191608 |
| 12draft | 3 | Rohde, Karl Heinz (1624) | Draw 1-1 | 01608 |
| 13draft | 7 | Garcia, Gerard (1618) | Lost 0-2 | -171591 |
| 14draft | 10 | Geertsen, Svend (1853) | Lost 0-2 | -141577 |
| average opponent: 1596record: 9-4-1 | new rating: 1577 | |||
| Grand Prix Barcelona 1999 (USG sealed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 57 | Morales, Jose (1500) | Won 0-0 | +181518 |
| 3sealed | 26 | Benson, Gordon (1497) | Won 0-0 | +181536 |
| 4sealed | 32 | Vinagre, Antonio (1536) | Lost 0-0 | -181518 |
| 5sealed | 33 | Fuentes, Hector (1519) | Lost 0-0 | -181500 |
| 6sealed | 74 | Valles, Oscar (1500) | Lost 0-0 | -181482 |
| average opponent: 1510record: 2-3 | new rating: 1482 | |||