Peterson, Matthew
Current rating: 1356
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1415 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 87 | Pham, Nhi (1478) | Lost 1-2 | -171398 |
| 2sealed | 535 | Monfre, Dominic (1482) | Lost 1-2 | -161382 |
| 3sealed | 829 | Bergstresser, Gordon (1416) | Lost 0-2 | -181364 |
| 5sealed | 686 | Houser, Tim (1464) | Won 2-0 | +201384 |
| 6sealed | 534 | Renner, Mark (1619) | Lost 0-2 | -141370 |
| 7sealed | 465 | Baker, Chris (1548) | Lost 0-2 | -141356 |
| top | average opponent: 1501record: 1-5 | new rating: 1356 | ||
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 217 | Shrum, Dmitri (1500) | Lost 0-2 | -171428 |
| 2sealed | 630 | Harrington, Zachary (1481) | Lost 0-2 | -171411 |
| 3sealed | 606 | Raymond P., (1468) | Lost 0-2 | -171394 |
| 4sealed | 699 | Bower, Richard (1445) | Won 2-0 | +191413 |
| 5sealed | 599 | Hatt, Kyle (1475) | Lost 0-2 | -171396 |
| 6sealed | 489 | Mason, Jared (1447) | Won 2-0 | +191415 |
| top | average opponent: 1469record: 2-4 | new rating: 1415 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 537 | Fairchild, Michael (1500) | Lost 0-2 | -181482 |
| 2legacy | 582 | Cappello, Kyle J (1428) | Lost 0-2 | -191463 |
| 3legacy | 659 | Koenings, Austin (1464) | Won 2-0 | +181481 |
| 4legacy | 612 | Knapp, Hans (1469) | Lost 0-2 | -181463 |
| 5legacy | 649 | Monroe, Chris J (1466) | Lost 0-2 | -181445 |
| 6legacy | 620 | Smith, Anthony J (1450) | Lost 0-2 | -181427 |
| 7legacy | 573 | St. Amour, Nicholas (1428) | Won 2-0 | +181445 |
| 8legacy | 530 | Hoffmann, Jake A (1446) | Lost 0-2 | -181427 |
| 9legacy | 500 | Long, Morgan (1427) | Won 2-0 | +181445 |
| top | average opponent: 1453record: 3-6 | new rating: 1445 | ||