Colosimo, John
Current rating: 1502
Record: 14-16
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1451 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 259 | Evaristo, Tommy (1617) | Lost 0-2 | -151436 |
| 3sealed | 415 | Baker, Jonathan (1443) | Won 2-1 | +181454 |
| 4sealed | 182 | Bender, Johnnie (1551) | Won 2-0 | +201474 |
| 5sealed | 104 | Rand, Justin (1769) | Lost 0-2 | -131461 |
| 6sealed | 210 | Graber, Nathan (1516) | Won 2-0 | +191480 |
| 7sealed | 144 | Basile, Devin (1518) | Won 2-0 | +181498 |
| 8sealed | 89 | Zhang, Peter (1627) | Lost 0-2 | -151483 |
| 9sealed | 124 | Ford, Alexander (1542) | Won 2-0 | +191502 |
| top | average opponent: 1573record: 5-3 | new rating: 1502 | ||
| Grand Prix Cleveland 2015 (FRF limited) | starting rating: 1437 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 401 | Kiss, Jason (1519) | Won 2-0 | +191456 |
| 3sealed | 294 | Katz, Jamie (1536) | Won 2-1 | +201476 |
| 4sealed | 72 | Chisholm, James (1573) | Lost 0-2 | -171459 |
| 5sealed | 266 | Havlovic, Bob (1655) | Lost 1-2 | -141445 |
| 6sealed | 400 | Vanderpool, Chad (1518) | Won 2-1 | +191464 |
| 7sealed | 174 | McNamara, Brendan (1563) | Lost 1-2 | -161448 |
| 8sealed | 271 | Fallon, Luke (1523) | Lost 0-2 | -171431 |
| 9sealed | 246 | Cook, Austin (1505) | Won 2-1 | +201451 |
| top | average opponent: 1549record: 4-4 | new rating: 1451 | ||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 226 | Gates, Zane (1500) | Won 2-0 | +201451 |
| 2sealed | 184 | Goldstone, Alex (1444) | Won 2-0 | +171468 |
| 3sealed | 123 | Rowley, Austin (1470) | Lost 1-2 | -171451 |
| 4sealed | 326 | Potente, Michael (1540) | Lost 1-2 | -171434 |
| 5sealed | 338 | Mills, Harold (1500) | Won 2-1 | +191453 |
| 6sealed | 284 | Jamison, Chad (1521) | Lost 0-2 | -161437 |
| top | average opponent: 1496record: 3-3 | new rating: 1437 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 517 | Brown, Harrison (1500) | Lost 0-2 | -181467 |
| 2sealed | 756 | McGovern, Thomas (1481) | Lost 1-2 | -171450 |
| 3sealed | 766 | O'Dell, Luke (1430) | Lost 0-2 | -191431 |
| top | average opponent: 1470record: 0-3 | new rating: 1431 | ||
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 450 | Jones, Nick (1521) | Won 2-1 | +181518 |
| 2sealed | 376 | Cornely, Raymond (1518) | Lost 1-2 | -181500 |
| 3sealed | 524 | Maynard, Jacob (1718) | Won 2-1 | +221522 |
| 4sealed | 325 | Chasan, Ze'Eva (1493) | Lost 1-2 | -181504 |
| 5sealed | 371 | Kerrigan, Andrew (1473) | Lost 1-2 | -191485 |
| top | average opponent: 1545record: 2-3 | new rating: 1485 | ||