Anderson, Joseph M
Current rating: 1490
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1420 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 209 | Chu, Derrek (1500) | Won 2-1 | +191439 |
| 2sealed | 271 | Manansala, Bayani (1798) | Lost 0-2 | -111428 |
| 3sealed | 307 | Nobriga, Steven (1500) | Won 2-1 | +191447 |
| 4sealed | 304 | Garcia, George (1500) | Lost 0-2 | -171430 |
| 5sealed | 378 | Phommaksone, Simon (1499) | Won 2-0 | +191449 |
| 6sealed | 294 | Schaefer, Michael (1520) | Won 2-0 | +191468 |
| 7sealed | 207 | Nelson, Rob (1488) | Won 2-0 | +191487 |
| 8sealed | 132 | Key, Evan (1523) | Won 2-1 | +181505 |
| 9sealed | 175 | Bailey, A.J. (1625) | Lost 0-2 | -151490 |
| top | average opponent: 1550record: 6-3 | new rating: 1490 | ||
| Grand Prix Anaheim 2012 (Innistrad block) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 176 | Chu, Kevin (1554) | Lost 1-2 | -161430 |
| 3block | 264 | Gallardo, Tony (1500) | Lost 0-2 | -171413 |
| 4block | 424 | Gilson, Frank (1620) | Won 2-1 | +221435 |
| 5block | 280 | Rand, Justin (1592) | Lost 0-2 | -151420 |
| top | average opponent: 1567record: 1-3 | new rating: 1420 | ||
| Grand Prix Oakland 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 166 | Wilson, Tyler (1520) | Lost 1-2 | -181482 |
| 2extended | 217 | McCullough, Sean (1482) | Lost 0-2 | -181464 |
| 3extended | 319 | Hansen, Miles C (1451) | Lost 0-2 | -181446 |
| top | average opponent: 1485record: 0-3 | new rating: 1446 | ||