Perin, Claudio
Current rating: 1304
| Grand Prix Milan 2011 (ISD limited) | starting rating: 1348 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 645 | Saltel, Melanie (1425) | Lost 0-2 | -171331 |
| 2sealed | 856 | Marion, Daniel [CRO] (1482) | Won 2-1 | +211352 |
| 3sealed | 657 | De Colle, Mattia (1486) | Lost 0-2 | -161336 |
| 4sealed | 828 | Rodrigues, Rodrigo (1415) | Lost 0-2 | -161320 |
| 5sealed | 877 | Dermont, Guido (1463) | Lost 0-2 | -161304 |
| top | average opponent: 1454record: 1-4 | new rating: 1304 | ||
| Grand Prix Athens 2006 (TSP limited) | starting rating: 1408 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 45 | Gkerpinis, Nikos (1500) | Draw 1-1 | +21410 |
| 2sealed | 103 | van Hees, Kim (1501) | Lost 1-2 | -171393 |
| 3sealed | 160 | van Weverwijk, Erik (1447) | Lost 1-2 | -171376 |
| 4sealed | 205 | Th., Manthos (1482) | Draw 1-1 | +21378 |
| 5sealed | 199 | Varikas, Dimitris (1464) | Lost 0-1 | -161362 |
| 6sealed | 185 | Malasidou, Katerina (1446) | Lost 1-2 | -171345 |
| 7sealed | 164 | Andrikos, Nikos (1428) | Lost 0-2 | -161329 |
| 8sealed | 143 | Fanartzis, Stratos (1374) | Won 2-0 | +191348 |
| top | average opponent: 1455record: 1-5-2 | new rating: 1348 | ||
| Grand Prix Rimini 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 156 | Bohringer, Steffen (1481) | Lost 0-2 | -181482 |
| 2block | 296 | Zombori, Csaba (1400) | Lost 0-2 | -201462 |
| 3block | 310 | Paolini, Federico (1467) | Lost 0-2 | -181444 |
| 4block | 354 | Salines, Alessio (1422) | Lost 0-2 | -181426 |
| 5block | 322 | Eugenio, Reggianini (1427) | Lost 0-2 | -181408 |
| top | average opponent: 1439record: 0-5 | new rating: 1408 | ||