Robertson, Erik
Current rating: 1447
Record: 4-7
| Grand Prix Chicago 2009 (legacy) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 264 | Blumenshine, Mitch (1518) | Won 2-0 | +191500 |
| 3legacy | 90 | Staffa, Eric (1518) | Lost 0-2 | -181482 |
| 4legacy | 221 | Jungbauer, Rene (1534) | Lost 1-2 | -171465 |
| 5legacy | 369 | Jobin, Christopher M (1484) | Lost 1-2 | -181447 |
| average opponent: 1513record: 1-3 | new rating: 1447 | |||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 71 | Niblock, Bill (1500) | Won 2-1 | +181518 |
| 2block | 309 | Albino, Christopher (1482) | Won 2-1 | +171535 |
| 3block | 17 | Miyashiro, Justin (1538) | Lost 0-2 | -181517 |
| 4block | 134 | Caless, Ben (1518) | Lost 1-2 | -181499 |
| 5block | 231 | Polak, Martin (1466) | Lost 1-2 | -181481 |
| 6block | 297 | Boonyam, Sagulabhat (1485) | Won 2-0 | +181499 |
| 7block | 234 | Bristol, Nick (1499) | Lost 1-2 | -181481 |
| average opponent: 1498record: 3-4 | new rating: 1481 | |||