Butler, Gavin
Current rating: 1484
Record: 13-15
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 155 | Kwok, Cosmo (1455) | Lost 0-2 | -191484 |
| 3modern | 414 | Marlborough, Caitlyn (1446) | Lost 0-2 | -191465 |
| 4modern | 505 | Norton, Chet (1448) | Won 2-1 | +181483 |
| 5modern | 451 | Brown, Sam (1523) | Won 2-0 | +181501 |
| 6modern | 268 | Byer, Jon (1540) | Lost 0-2 | -171484 |
| top | average opponent: 1482record: 2-3 | new rating: 1484 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 509 | Allulis, Chris (1578) | Won 2-0 | +201492 |
| 2sealed | 194 | Benjamin, Kyle (1476) | Won 2-0 | +171509 |
| 3sealed | 68 | Tom, Kar Yung (1914) | Won 2-1 | +251534 |
| 4sealed | 37 | Reed, David (1547) | Won 2-0 | +191553 |
| 5sealed | 27 | Durfor, James (1578) | Lost 0-2 | -181535 |
| 6sealed | 127 | Dick, Cody (1564) | Won 2-1 | +191554 |
| 7sealed | 112 | Robillard, Joseph (1575) | Lost 1-2 | -181536 |
| 8sealed | 200 | Visco, David (1656) | Lost 0-0 | -161520 |
| 9sealed | 229 | Helguero, Marcos (1547) | Lost 1-2 | -171503 |
| top | average opponent: 1604record: 5-4 | new rating: 1503 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 479 | Edgecomb, Brandi (1500) | Won 2-1 | +191465 |
| 2sealed | 391 | Bresett, John (1570) | Won 2-0 | +191484 |
| 3sealed | 183 | Lasky, Alex R (1536) | Won 2-1 | +191503 |
| 4sealed | 218 | Boismenu, Mathieu (1519) | Lost 1-2 | -171486 |
| 5sealed | 271 | Kohler, Jarred (1538) | Won 2-1 | +191505 |
| 6sealed | 254 | BROOKS, JAMES (1555) | Lost 1-2 | -171488 |
| 7sealed | 202 | Mahini, Shaw (1491) | Lost 1-2 | -181470 |
| 8sealed | 284 | Smith, Dante (1522) | Lost 0-2 | -171453 |
| 9sealed | 311 | Mike L., (1510) | Won 2-0 | +191472 |
| top | average opponent: 1527record: 5-4 | new rating: 1472 | ||
| Grand Prix Boston 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 17 | Healy, John (1500) | Won 2-1 | +181518 |
| 2sealed | 41 | Stefanovic, Lou (1520) | Lost 1-2 | -181500 |
| 3sealed | 117 | giordano, angelo (1503) | Lost 0-2 | -181482 |
| 4sealed | 207 | Keller, Michael (1449) | Lost 1-2 | -181464 |
| 5sealed | 207 | Richardson, Dan (1467) | Lost 0-2 | -181446 |
| top | average opponent: 1488record: 1-4 | new rating: 1446 | ||