Parker, Matthew 638
Current rating: 1549
Record: 49-42-3
| Grand Prix Toronto 2019 (modern) | starting rating: 1600 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 362 | Hackney, Tyler (1449) | Won 2-0 | +151615 |
| 2modern | 310 | Tran, Thomas (1468) | Lost 1-2 | -211594 |
| 3modern | 289 | Nutbean, Steve (1435) | Lost 1-2 | -211573 |
| 4modern | 560 | Santucci, Nick (1498) | Lost 1-2 | -191554 |
| 5modern | 539 | McLaughlin, Scott (1461) | Lost 0-2 | -201534 |
| 6modern | 457 | Smith, Tilden (1445) | Won 2-0 | +171551 |
| 7modern | 354 | O'Shea, Andrew (1564) | Won 2-0 | +181569 |
| 8modern | 290 | Ecclestone, Charles (1480) | Lost 0-2 | -201549 |
| top | average opponent: 1475record: 3-5 | new rating: 1549 | ||
| Grand Prix Toronto 2018 (modern) | starting rating: 1631 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 302 | Paquette, Sean (1487) | Won 2-0 | +151646 |
| 2modern | 112 | Chodat, Shawn (1415) | Won 2-1 | +141660 |
| 3modern | 34 | Proano, Gina (1576) | Lost 0-2 | -191641 |
| 4modern | 420 | Kaplan, Spencer (1588) | Won 2-1 | +171658 |
| 5modern | 95 | Mattie, David (1514) | Lost 1-2 | -211637 |
| 6modern | 244 | Kor, Frank (1703) | Lost 0-2 | -171620 |
| 7modern | 391 | Dugal, Louis-Philippe (1471) | Lost 0-2 | -201600 |
| top | average opponent: 1536record: 3-4 | new rating: 1600 | ||
| Grand Prix Detroit 2016 (modern) | starting rating: 1617 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 753 | Rickman, Chase (1466) | Lost 1-2 | -211596 |
| 2modern | 951 | Slater, Zac (1418) | Lost 1-2 | -211575 |
| 3modern | 1205 | Billett, Luke (1464) | Won 2-1 | +161591 |
| 4modern | 1033 | Schwab, Jason (1085) | Won 2-0 | +91600 |
| 5modern | 936 | Bonacorsi, John (1502) | Lost 1-2 | -191581 |
| 6modern | 805 | Gertz, Jacob (1506) | Won 2-0 | +161597 |
| 7modern | 593 | Roberts, Jonathan (1501) | Won 2-0 | +171614 |
| 8modern | 469 | Thomas, Jesse (1521) | Won 2-0 | +161630 |
| 9modern | 332 | Jasiekiewicz, Michael (1434) | Won 2-0 | +141644 |
| 10modern | 320 | Stan, Samuel (1601) | Lost 0-2 | -181626 |
| 11modern | 260 | Singleton, Chris (1456) | Lost 0-2 | -221604 |
| 12modern | 290 | Schmidt, David (1543) | Won 2-1 | +171621 |
| 13modern | 234 | Carey, Chris (1523) | Won 2-0 | +171638 |
| 14modern | 205 | Brooks, Cody (1333) | Lost 1-2 | -241614 |
| 15modern | 199 | Mayernick, Alec (1549) | Won 2-1 | +171631 |
| top | average opponent: 1460record: 9-6 | new rating: 1631 | ||
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1590 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 49 | Hyland, Stephen (1500) | Draw 1-1 | -21588 |
| 2legacy | 481 | Sunseri, Jeremy (1374) | Won 2-1 | +141602 |
| 3legacy | 409 | Linford Combs, Joseph (1519) | Won 2-0 | +171619 |
| 4legacy | 205 | Smith, David (1439) | Won 2-1 | +141633 |
| 5legacy | 102 | Fournier, Daniel (1969) | Lost 0-2 | -121621 |
| 6legacy | 244 | Baldwin, William (1573) | Won 2-1 | +171638 |
| 7legacy | 162 | Mason, Thomas (1456) | Won 2-1 | +151653 |
| 8legacy | 93 | Ling, Matthew (1695) | Lost 0-2 | -171636 |
| 9legacy | 176 | Chien, Andrew (1578) | Lost 0-2 | -191617 |
| top | average opponent: 1567record: 5-3-1 | new rating: 1617 | ||
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1581 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 120 | Armstrong, Keely (1500) | Won 2-0 | +161597 |
| 2standard | 231 | Flynn, Erich (1512) | Lost 1-2 | -191578 |
| 3standard | 502 | Maini, Quentin (1623) | Lost 1-2 | -171561 |
| 4standard | 515 | Morrill, Jason (1430) | Lost 0-2 | -211540 |
| 5standard | 642 | Mitchell, Zach (1376) | Won 2-0 | +151555 |
| 6standard | 516 | Moles, Tommy (1438) | Won 2-0 | +161571 |
| 7standard | 402 | Moskal, Greg (1689) | Won 2-0 | +201591 |
| 8standard | 249 | Pettipas, Amber (1518) | Lost 0-2 | -191572 |
| 9standard | 246 | Vasil, Jeremy (1556) | Won 2-1 | +181590 |
| top | average opponent: 1516record: 5-4 | new rating: 1590 | ||
| Grand Prix Vancouver 2015 (modern) | starting rating: 1566 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 351 | Cunningham, Jackson (1820) | Lost 0-2 | -131553 |
| 2modern | 447 | Wesley, Morgan (1483) | Lost 1-2 | -201533 |
| 3modern | 499 | Reid, Colin (1464) | Won 2-0 | +171550 |
| 4modern | 371 | Thomas, Samara (1481) | Won 2-1 | +171567 |
| 5modern | 264 | Robson, Kenji (1467) | Won 2-0 | +161583 |
| 6modern | 207 | Shelloff, Alan (1520) | Won 2-1 | +171600 |
| 7modern | 146 | Gerlock, Alex (1717) | Won 2-0 | +201620 |
| 8modern | 103 | Fields, Frank (1508) | Lost 1-2 | -201600 |
| 9modern | 146 | Wiznura, Isaac (1537) | Lost 1-2 | -191581 |
| top | average opponent: 1555record: 5-4 | new rating: 1581 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 1631 | Chang, Charlie (1449) | Won 2-1 | +171524 |
| 2legacy | 1566 | Taylor, Timothy (1508) | Won 2-1 | +181542 |
| 3legacy | 1584 | Ierardi, John (1573) | Lost 0-2 | -181524 |
| 4legacy | 1727 | Ivey, Jacob (1654) | Won 2-1 | +211545 |
| 5legacy | 1545 | Patel, Chirayu (1565) | Won 2-1 | +181563 |
| 6legacy | 1504 | Gassaway, Ryan (1570) | Won 2-0 | +181581 |
| 7legacy | 1478 | Brown, Dylan [AUS] (1700) | Lost 0-2 | -161565 |
| 8legacy | 1515 | Dunau, Bera (1517) | Won 2-0 | +171582 |
| 9legacy | 1489 | Medrano, Adonnys (1557) | Won 2-0 | +181600 |
| 10legacy | 94 | Haass, David (1615) | Won 2-1 | +181618 |
| 11legacy | 83 | Patel, Tariq (1656) | Lost 1-2 | -171601 |
| 12legacy | 110 | Harvie, Donovan (1626) | Lost 0-2 | -181583 |
| 13legacy | 156 | Allinson, Chris (1646) | Won 2-0 | +191602 |
| 14legacy | 103 | Herzog, Thomas (1585) | Lost 1-2 | -181584 |
| 15legacy | 151 | Roukas, Sam (1587) | Lost 1-2 | -181566 |
| top | average opponent: 1587record: 9-6 | new rating: 1566 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 324 | Gill, Jeffrey (1522) | Won 2-0 | +181488 |
| 2modern | 162 | Perlee, Travis (1524) | Lost 1-2 | -171471 |
| 3modern | 290 | Caramico, Jeremy (1500) | Lost 0-2 | -171454 |
| 4modern | 521 | Heft, Christopher (1483) | Won 2-0 | +181472 |
| 5modern | 382 | Ruck, Stephen (1519) | Won 2-1 | +191491 |
| 6modern | 266 | Conder, Johnathon (1514) | Lost 0-2 | -181473 |
| 7modern | 270 | Wilson, Trevor (1315) | Won 2-1 | +161489 |
| 8modern | 167 | Anderson, Joseph F (1491) | Draw 1-1 | 01489 |
| 9modern | 156 | Katara, Manohar (1506) | Won 2-1 | +181507 |
| top | average opponent: 1486record: 5-3-1 | new rating: 1507 | ||
| Grand Prix Toronto 2012 (modern) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 261 | Magno, Rowell (1500) | Won 2-1 | +181486 |
| 2modern | 177 | Holosko, Joel (1519) | Lost 1-2 | -171469 |
| 3modern | 276 | Lavignasse, Anthony (1499) | Lost 0-2 | -171452 |
| 4modern | 434 | Yuzva, Steven (1385) | Won 2-1 | +161468 |
| 5modern | 348 | Lemelin, Laurent (1500) | Lost 0-2 | -171451 |
| 6modern | 346 | Yang, Kim (1483) | Lost 0-2 | -171434 |
| 7modern | 307 | Graham, Sean (1461) | Won 2-0 | +181452 |
| 8modern | 230 | Garneau, Nicholas (1486) | Won 2-1 | +191471 |
| 9modern | 187 | Gustafson, Thomas (1408) | Draw 1-1 | -11470 |
| top | average opponent: 1471record: 4-4-1 | new rating: 1470 | ||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 419 | Vasovski, Michael (1608) | Lost 0-2 | -161484 |
| 3sealed | 578 | Bushard, Ryan (1511) | Lost 0-2 | -181466 |
| 4sealed | 555 | Huang, Benjamin (1541) | Won 2-0 | +201486 |
| 5sealed | 500 | Bourque, Jason (1488) | Lost 0-2 | -181468 |
| top | average opponent: 1537record: 1-3 | new rating: 1468 | ||