Grimm, Brian
Current rating: 1475
Record: 16-18-1
| Grand Prix Pittsburgh 2018 (DOM standard) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 221 | Brown, Daniel (1410) | Won 2-0 | +171510 |
| 2standard | 11 | Howell, Cody (1479) | Lost 0-2 | -191491 |
| 3standard | 241 | Boyce, Zechariah (1533) | Lost 1-2 | -171474 |
| 4standard | 334 | Wallace, Regis (1423) | Won 2-0 | +171491 |
| 5standard | 244 | Zeiler, Daniel (1590) | Lost 0-2 | -161475 |
| top | average opponent: 1487record: 2-3 | new rating: 1475 | ||
| Grand Prix Washington DC 2017 (HOU standard) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 445 | Matranga, Richard (1405) | Won 2-1 | +171501 |
| 2standard | 219 | Anderson, Erik (1545) | Won 2-0 | +191520 |
| 3standard | 232 | Somers, Stu (1614) | Won 2-0 | +191539 |
| 4standard | 74 | Calcano, Christian (2033) | Lost 0-2 | -91530 |
| 5standard | 321 | Mucciolo, Michael (1516) | Lost 0-2 | -191511 |
| 6standard | 310 | Ingraffia, Matthew (1564) | Lost 0-2 | -171494 |
| 7standard | 538 | Kent, Doug (1416) | Won 2-0 | +171511 |
| 8standard | 409 | Edwards, Ken (1536) | Lost 1-2 | -181493 |
| top | average opponent: 1579record: 4-4 | new rating: 1493 | ||
| Grand Prix Pittsburgh 2016 (SOI standard) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 134 | Lawson, Duncan (1509) | Won 2-0 | +191517 |
| 2standard | 215 | Leone, Stefan (1593) | Lost 0-2 | -171500 |
| 3standard | 368 | Huelsman, Robert (1427) | Lost 1-2 | -191481 |
| 4standard | 591 | Caravas, Dimitrios (1397) | Won 2-0 | +161497 |
| 5standard | 478 | Cato, Daniel (1804) | Lost 1-2 | -121485 |
| 6standard | 538 | Mulvihill, Scott (1497) | Won 2-0 | +181503 |
| 7standard | 448 | Horn, Andrew (1467) | Lost 1-2 | -191484 |
| top | average opponent: 1528record: 3-4 | new rating: 1484 | ||
| Grand Prix Columbus 2016 (legacy) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 538 | Mendez, James (1548) | Lost 0-2 | -181518 |
| 2legacy | 491 | Peers, Jennifer (1443) | Lost 0-2 | -201498 |
| top | average opponent: 1496record: 0-2 | new rating: 1498 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 451 | Bravo, Genaro (1500) | Won 2-0 | +171559 |
| 2modern | 164 | Anderson, Matthew [USA] (1422) | Lost 1-2 | -201539 |
| 3modern | 419 | Cooper, Mitchell (1455) | Draw 1-1 | -21537 |
| 4modern | 373 | Curry, Wendy (1501) | Won 2-0 | +171554 |
| 5modern | 255 | Blommel, Christopher (1503) | Lost 0-2 | -181536 |
| top | average opponent: 1476record: 2-2-1 | new rating: 1536 | ||
| Grand Prix Pittsburgh 2011 (M12 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 438 | Bowman, Trey (1499) | Lost 1-2 | -181482 |
| 2standard | 359 | Collander, Nate (1482) | Won 2-1 | +181500 |
| 3standard | 328 | Minor, Nicholas (1498) | Won 2-0 | +181518 |
| 4standard | 439 | Lucente, Vinnie (1515) | Won 2-1 | +181536 |
| 5standard | 193 | Woods, Conley (1773) | Lost 1-2 | -141522 |
| 6standard | 404 | Penn, Dustin (1520) | Won 2-1 | +181540 |
| 7standard | 196 | McFarland, Ken (1536) | Won 2-1 | +181558 |
| 8standard | 139 | Piovano, Daniele (1662) | Lost 1-2 | -161542 |
| top | average opponent: 1561record: 5-3 | new rating: 1542 | ||