Kerr, Robert C
Current rating: 1451
Record: 3-6-1
| Grand Prix Houston 2010 (extended) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 60 | Cummings, Michael J (1500) | Draw 1-1 | +11465 |
| 2extended | 158 | Gipson, Tripper (1519) | Lost 0-2 | -171448 |
| 3extended | 225 | Perry, Karston (1482) | Won 2-1 | +191467 |
| 4extended | 198 | Hillis, Troy A (1518) | Won 2-0 | +191486 |
| 5extended | 145 | Park, Jon (1518) | Lost 0-2 | -181468 |
| 6extended | 181 | Bruno, David (1501) | Lost 0-2 | -171451 |
| average opponent: 1506record: 2-3-1 | new rating: 1451 | |||
| Grand Prix Dallas 2007 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 164 | Robinson, Billy D (1500) | Lost 0-2 | -181482 |
| 2extended | 287 | vick, jonathan (1482) | Lost 1-2 | -181464 |
| 3extended | 300 | Knight, Eric L (1464) | Won 0-0 | +181482 |
| 4extended | 305 | Bledsoe, Doyle (1507) | Lost 1-2 | -181464 |
| average opponent: 1488record: 1-3 | new rating: 1464 | |||