Sevastos, Gregory
Current rating: 1465
Record: 15-19-1
| Grand Prix Rotterdam 2009 (CON limited) | starting rating: 1437 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 148 | Radin, Aleksandar (1357) | Lost 1-2 | -191418 |
| 2sealed | 211 | Geuze, Kees (1481) | Won 2-0 | +191437 |
| 3sealed | 199 | Kempf, Bastian (1461) | Lost 1-2 | -181419 |
| 4sealed | 210 | Stahl, Gerry (1469) | Lost 0-2 | -171402 |
| 5sealed | 223 | van de Giessen, Renier (1461) | Won 2-1 | +191421 |
| 6sealed | 187 | Verovski, Serge (1482) | Lost 1-2 | -171404 |
| 7sealed | 155 | Saglena, Martin (1468) | Won 2-0 | +201424 |
| 8sealed | 127 | Ceska, Pavel (1583) | Won 2-1 | +201444 |
| 9sealed | 81 | Kogler, Stefan (1579) | Won 2-0 | +211465 |
| top | average opponent: 1482record: 5-4 | new rating: 1465 | ||
| Grand Prix Stuttgart 2007 (LRW limited) | starting rating: 1384 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 10 | Tischer, Andreas (1500) | Won 2-1 | +201404 |
| 2sealed | 164 | Pech, Rene (1572) | Draw 1-1 | +31407 |
| 3sealed | 108 | Urset, Antoine (1533) | Won 2-1 | +201427 |
| 4sealed | 96 | Decker, Bastian (1520) | Lost 0-2 | -161411 |
| 5sealed | 162 | Zijp, Teun (1519) | Won 2-1 | +201431 |
| 6sealed | 93 | Pla, David (1684) | Won 2-0 | +221453 |
| 7sealed | 63 | Stevens, Henk (1560) | Lost 0-2 | -161437 |
| top | average opponent: 1555record: 4-2-1 | new rating: 1437 | ||
| Grand Prix Strasbourg 2007 (Time Spiral block) | starting rating: 1410 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 183 | Brule, Nicolas (1499) | Lost 1-2 | -171393 |
| 2block | 203 | Meyer, Claude (1382) | Won 2-0 | +181411 |
| 3block | 127 | Dana, Jakub (1500) | Lost 1-2 | -161395 |
| 4block | 236 | Epp, Dimitri (1484) | Lost 0-2 | -171378 |
| 5block | 250 | Robert, Pierre Marc (1463) | Won 2-0 | +201398 |
| 6block | 197 | Thierry, Nicolas (1441) | Won 2-1 | +191417 |
| 7block | 155 | Gunis, Ladislav (1499) | Lost 0-2 | -171400 |
| 8block | 140 | Eschemann, Christophe (1481) | Lost 0-2 | -161384 |
| top | average opponent: 1469record: 3-5 | new rating: 1384 | ||
| Grand Prix Lille 2005 (legacy) | starting rating: 1461 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 347 | Vos, Randy (1505) | Lost 0-2 | -171444 |
| 2legacy | 442 | Bouakkaz, Cary (1482) | Lost 1-2 | -171427 |
| 3legacy | 497 | Barsamian, Yann (1464) | Lost 0-2 | -171410 |
| top | average opponent: 1484record: 0-3 | new rating: 1410 | ||
| Grand Prix London 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 143 | Nortemann, Eiko (1446) | Won 2-1 | +171517 |
| 2block | 36 | Stowers, Chris (1479) | Won 2-0 | +171534 |
| 3block | 70 | Ballestrazzi, Ivan (1518) | Lost 0-2 | -181516 |
| 4block | 153 | Marchet, Cedric (1505) | Won 2-0 | +181534 |
| 5block | 47 | Akritas, Pavlos (1615) | Lost 1-2 | -171517 |
| 6block | 144 | Van Goethem, Stijn (1453) | Lost 0-2 | -191498 |
| 7block | 125 | Goertzen, Simon (1445) | Lost 1-2 | -191479 |
| 8block | 137 | Douet, Loic (1496) | Lost 0-2 | -181461 |
| top | average opponent: 1495record: 3-5 | new rating: 1461 | ||