Brooke, Geoffrey
Current rating: 1481
Record: 4-5
| Grand Prix Auckland 2008 (ALA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 34 | Suasono, Bryan E (1500) | Won 2-1 | +181518 |
| 2sealed | 39 | Millington, Scott (1518) | Lost 0-2 | -181500 |
| 3sealed | 81 | Hitchcock, Steven (1500) | Lost 0-2 | -181482 |
| 4sealed | 90 | Schroder, Ivan (1466) | Won 2-1 | +171499 |
| 5sealed | 83 | Fix, Wayne (1495) | Lost 1-2 | -181481 |
| average opponent: 1496record: 2-3 | new rating: 1481 | |||
| Grand Prix Cape Town 2001 (ODY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 52 | De Beer, Philip (1500) | Won 1-0 | +181518 |
| 2sealed | 34 | Carter, Brandon [ZAF] (1500) | Lost 0-2 | -181500 |
| 3sealed | 36 | Walsh, Matthew [ZAF] (1500) | Lost 0-2 | -181482 |
| 4sealed | 53 | Van Ronge, Herman (1482) | Won 2-0 | +181500 |
| average opponent: 1496record: 2-2 | new rating: 1500 | |||