Karr, Matthew
Current rating: 1533
Record: 14-15-1
| Grand Prix Sacramento 2018 (M19 limited) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 277 | Situ, David (1473) | Won 2-1 | +171522 |
| 2sealed | 137 | Dorman, Rayman (1669) | Lost 1-2 | -151507 |
| 3sealed | 373 | Chong, Rick (1877) | Won 2-1 | +241531 |
| 4sealed | 180 | Chan, Jason (1610) | Won 2-1 | +201551 |
| 5sealed | 202 | Sundholm, Peter (1565) | Draw 1-1 | 01551 |
| 6sealed | 171 | Allen, Jeremy (1561) | Lost 0-2 | -181533 |
| top | average opponent: 1626record: 3-2-1 | new rating: 1533 | ||
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 304 | Capraro, Oscar (1482) | Won 2-0 | +181453 |
| 2sealed | 393 | Jun, Ji (1518) | Won 2-1 | +201473 |
| 3sealed | 355 | Wilkowski, Aaron (1704) | Lost 0-2 | -141459 |
| 4sealed | 238 | Woody, Scott (1777) | Lost 0-2 | -131446 |
| 5sealed | 463 | Worden, Corey (1384) | Won 2-0 | +171463 |
| 6sealed | 315 | Sherman, Sam (1784) | Lost 0-2 | -121451 |
| 7sealed | 505 | Vasquez, Mikonos (1546) | Won 2-1 | +201471 |
| 8sealed | 464 | Murray, Owen (1520) | Won 2-1 | +191490 |
| 9sealed | 254 | Madden, Kenji (1551) | Won 2-1 | +191509 |
| 10draft | 63 | Johl, Jason (1560) | Won 2-1 | +191528 |
| 11draft | 61 | Jones, Nick (1565) | Lost 0-0 | -181510 |
| 12draft | 54 | Esposito, Evan (1779) | Lost 0-2 | -131497 |
| 13draft | 174 | Masters, Preston (1602) | Won 2-1 | +201517 |
| 14draft | 139 | Gerlock, Alex (1835) | Lost 0-2 | -121505 |
| top | average opponent: 1615record: 8-6 | new rating: 1505 | ||
| Grand Prix Atlanta 2014 (JOU limited) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 533 | Bell, Patrick (1414) | Lost 0-2 | -181435 |
| top | record: 0-1 | new rating: 1435 | ||
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1258 | Deadmond, Trenton (1500) | Lost 1-2 | -171429 |
| 2sealed | 1215 | Brown, Brian (1516) | Lost 1-2 | -161413 |
| 3sealed | 1286 | Tinkelenberg, Kevin G (1464) | Won 2-0 | +191432 |
| 4sealed | 1226 | Machalica, Arthur (1462) | Won 2-0 | +181450 |
| 5sealed | 1239 | Szwichtenberg, Radoslaw (1496) | Won 2-0 | +191469 |
| 6sealed | 1138 | Abeln, Brant (1599) | Lost 0-2 | -161453 |
| top | average opponent: 1506record: 3-3 | new rating: 1453 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 101 | Tufford, Zachary (1500) | Lost 1-2 | -181482 |
| 2sealed | 399 | Schmidt, Henry J (1480) | Lost 1-2 | -181464 |
| 3sealed | 472 | Conway, Robert (1471) | Lost 0-2 | -181446 |
| top | average opponent: 1484record: 0-3 | new rating: 1446 | ||