Zimmermann, Andrew S
Current rating: 1434
Record: 3-7-1
| Grand Prix Anaheim 2012 (Innistrad block) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 167 | Adajar, Andrew (1500) | Won 2-1 | +191484 |
| 2block | 154 | Phan, Tuan (1506) | Lost 0-2 | -181466 |
| 3block | 234 | Lewis, Jason (1483) | Won 2-0 | +181484 |
| 4block | 215 | Penney, Joseph (1594) | Lost 1-2 | -161468 |
| 5block | 309 | Hermann, Thomas J (1502) | Lost 1-2 | -171451 |
| 6block | 333 | Daniel, Johnny (1480) | Lost 0-2 | -171434 |
| average opponent: 1511record: 2-4 | new rating: 1434 | |||
| Grand Prix Los Angeles 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 149 | Grimes, Thomas (1500) | Lost 1-2 | -181482 |
| 2extended | 249 | Barton, Cameron (1482) | Draw 1-1 | 01482 |
| 3extended | 312 | Scott, Ryan A (1482) | Lost 1-2 | -181464 |
| 4extended | 375 | Chavez, Joseph (1464) | Won 2-0 | +181482 |
| 5extended | 319 | Bechtel, Ray (1538) | Lost 0-1 | -171465 |
| average opponent: 1493record: 1-3-1 | new rating: 1465 | |||