Grenham, Sean
Current rating: 1489
Record: 4-5
| Grand Prix Birmingham 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 128 | James, Jack (1404) | Won 2-1 | +161516 |
| 2modern | 304 | Jacobs, Bob (1371) | Won 0-0 | +161532 |
| 3modern | 321 | Roman Acacio, Juan (1565) | Won 2-0 | +181550 |
| 4modern | 106 | Longoria, Daniel (1634) | Lost 0-2 | -161534 |
| 5modern | 306 | Kennedy, Corey (1519) | Won 2-0 | +181552 |
| 6modern | 101 | Newton, Charles (1518) | Lost 1-2 | -191533 |
| 7modern | 174 | Deltour, Louis (1961) | Lost 0-2 | -111522 |
| 8modern | 299 | Treike, Vincent (1549) | Lost 1-2 | -171505 |
| 9modern | 482 | Minahan, Keane (1602) | Lost 1-2 | -161489 |
| average opponent: 1569record: 4-5 | new rating: 1489 | |||