de Sousa e Costa, Joel
Current rating: 1403
| Grand Prix Rimini 2008 (Lorwyn block) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 150 | Piletti, Jacopo (1446) | Lost 0-2 | -171394 |
| 2block | 251 | Battaglia, Marco (1482) | Lost 0-2 | -171377 |
| 3block | 296 | Hernandez, Sebastien (1398) | Won 2-0 | +191396 |
| 4block | 284 | Balbi, Francesco (1482) | Lost 0-2 | -171379 |
| 5block | 262 | Cirillo, Pablo (1469) | Draw 0-0 | +21381 |
| 6block | 255 | Ceroni, Ivan (1464) | Won 2-1 | +191400 |
| 7block | 202 | Morri, Daniele (1481) | Draw 1-1 | +21402 |
| 8block | 185 | Grosso, Roberto (1414) | Lost 0-2 | -181384 |
| 9block | 160 | Di Paola, Angelo (1432) | Won 2-0 | +191403 |
| top | average opponent: 1452record: 3-4-2 | new rating: 1403 | ||
| Grand Prix Vienna 2008 (extended) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 75 | Eder, Wolfgang (1710) | Lost 0-2 | -131466 |
| 2extended | 175 | Biskup, Kresimir (1407) | Lost 0-2 | -191447 |
| 3extended | 239 | Sternbauer, Bernhard (1464) | Lost 1-2 | -181429 |
| 4extended | 268 | Dersch, Robert (1446) | Lost 0-2 | -181411 |
| top | average opponent: 1507record: 0-4 | new rating: 1411 | ||
| Grand Prix Florence 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 163 | Galassi, Alberto (1500) | Lost 1-2 | -181482 |
| 2block | 168 | Harkaemper, Gero (1481) | Won 2-1 | +181500 |
| 3block | 183 | Marie, Julien (1418) | Draw 1-1 | -21498 |
| 4block | 170 | Morandi, Andrea (1500) | Won 2-0 | +191517 |
| 5block | 133 | Ghilardi, Simone (1517) | Draw 1-1 | 01517 |
| 6block | 166 | Rocchi, Roberto (1486) | Lost 0-2 | -191498 |
| 7block | 167 | Simeon, Fabrice (1471) | Lost 0-2 | -191479 |
| top | average opponent: 1482record: 2-3-2 | new rating: 1479 | ||