Banfield, Brendan
Current rating: 1467
Record: 13-17-1
| Grand Prix Oakland 2019 (modern) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 92 | Core, Arden (1518) | Lost 1-2 | -181483 |
| 2modern | 441 | Aggarwal, Luke (1562) | Lost 0-2 | -161467 |
| 3modern | 512 | Nabavi, Aidan (1482) | Lost 1-2 | -181449 |
| 4modern | 513 | Conover, Kenneth (1445) | Won 2-0 | +181467 |
| top | average opponent: 1502record: 1-3 | new rating: 1467 | ||
| Grand Prix Providence 2011 (legacy) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 88 | Bourque, Jason (1505) | Won 2-1 | +181511 |
| 3legacy | 82 | Stringer, Joshua (1506) | Lost 0-2 | -181493 |
| 4legacy | 121 | Jaco, Jason (1540) | Draw 1-1 | +11494 |
| 5legacy | 144 | Zhang, Stephen (1705) | Lost 0-2 | -151479 |
| 6legacy | 179 | Drebsky, David (1633) | Won 2-1 | +211500 |
| 7legacy | 132 | R., Jesse (1534) | Won 2-0 | +191519 |
| 8legacy | 94 | Farias, Andrew (1523) | Lost 1-2 | -181501 |
| top | average opponent: 1564record: 3-3-1 | new rating: 1501 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 475 | DeMatties, Michelangelo (1578) | Lost 1-2 | -171488 |
| 5sealed | 511 | Blanchette, Jamie (1568) | Won 2-0 | +201508 |
| 6sealed | 460 | Kaplan, Evan (1541) | Won 2-1 | +181526 |
| 7sealed | 438 | Raney, Tom (1602) | Lost 1-2 | -161510 |
| 8sealed | 456 | Charland, Peter (1555) | Lost 1-2 | -171493 |
| top | average opponent: 1569record: 2-3 | new rating: 1493 | ||
| Grand Prix New Jersey 2006 (TSP limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 196 | Landale, Tim (1468) | Won 2-0 | +181536 |
| 3sealed | 83 | Hannon, Kevin (1536) | Won 2-0 | +181554 |
| 4sealed | 84 | Krempels, Craig (1797) | Lost 1-2 | -141540 |
| 5sealed | 107 | Meyst, Rich (1576) | Lost 0-2 | -171523 |
| 6sealed | 198 | Andersen, Victor (1547) | Lost 1-2 | -181505 |
| top | average opponent: 1585record: 2-3 | new rating: 1505 | ||
| Grand Prix Philadelphia 2005 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 23 | Lossett, Joe (1566) | Won 2-1 | +191519 |
| 4legacy | 14 | Kunz, Erich (1554) | Lost 1-2 | -171502 |
| 5legacy | 104 | Rosart, Dan (1534) | Won 2-0 | +181520 |
| 6legacy | 59 | Capalongan, Ronald (1580) | Won 2-1 | +201540 |
| 7legacy | 35 | Utter, Steven (1620) | Lost 0-2 | -171523 |
| 8legacy | 51 | Bomholt, Michael (1555) | Won 2-0 | +191542 |
| 9legacy | 21 | Darland, Eric (1564) | Won 2-0 | +181560 |
| 10legacy | 11 | Krumb, Michael (1888) | Lost 1-2 | -121548 |
| 11legacy | 21 | Szleifer, Gadiel (1906) | Lost 1-2 | -121536 |
| 12legacy | 26 | Kadlec, Robert (1559) | Lost 1-2 | -181518 |
| top | average opponent: 1633record: 5-5 | new rating: 1518 | ||