Mattie, David
Current rating: 1556
Record: 48-48-1
Grand Prix Cincinnati 2014Grand Prix Orlando 2014Grand Prix Cleveland 2015Grand Prix Las Vegas 2015 (1)Grand Prix Indianapolis 2015Grand Prix Pittsburgh 2015Grand Prix Detroit 2016Grand Prix Columbus 2016Grand Prix Indianapolis 2016Grand Prix Atlanta 2017Grand Prix Toronto 2018Grand Prix Dallas-Fort Worth 2019Grand Prix Las Vegas 2019 (modern)Grand Prix Columbus 2019
| Grand Prix Columbus 2019 (modern) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 197 | Brooks, Cody (1316) | Won 2-0 | +141575 |
| 2modern | 3 | Heintz, Ryan (1518) | Lost 0-2 | -191556 |
| 3modern | 269 | Bayer, Andy (1550) | Won 2-0 | +171573 |
| 4modern | 107 | Schmidt, Mike (1603) | Lost 0-2 | -171556 |
| 5modern | 223 | Nichols, Benjamin (1598) | Won 2-0 | +191575 |
| 6modern | 150 | Paine, Joe (1559) | Lost 1-2 | -191556 |
| top | average opponent: 1524record: 3-3 | new rating: 1556 | ||
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 537 | Kobayashi, Jon (1464) | Won 2-0 | +171536 |
| 2modern | 237 | Crosthwaite, Rodolfo (1614) | Lost 0-2 | -161520 |
| 3modern | 569 | Inman, Mike (1516) | Won 2-0 | +171537 |
| 4modern | 401 | Nelson, John (1441) | Won 2-0 | +171554 |
| 5modern | 137 | Lynn, Brian (1822) | Lost 0-2 | -131541 |
| 6modern | 492 | Nighbor, Chris (1728) | Lost 0-2 | -151526 |
| 7modern | 424 | Johnson, Daryian (1512) | Won 2-0 | +181544 |
| 8modern | 271 | Carbajal, Mark (1506) | Won 2-1 | +171561 |
| top | average opponent: 1575record: 5-3 | new rating: 1561 | ||
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 37 | Cobert, Michael (1384) | Lost 1-2 | -211499 |
| 2modern | 358 | Ruiz, Mason (1485) | Won 2-0 | +181517 |
| 3modern | 302 | Valdez, Armando (1500) | Lost 1-2 | -181499 |
| 4modern | 471 | Coffey, Josh (1521) | Won 2-1 | +181517 |
| 5modern | 435 | Shaver, Robert (1421) | Won 2-0 | +161533 |
| 6modern | 334 | Orrmons, Kale (1706) | Lost 0-2 | -151518 |
| 7modern | 287 | Bambino, Danny (1574) | Won 2-0 | +191537 |
| 8modern | 235 | Kalla, Brandon (1519) | Lost 1-2 | -181519 |
| top | average opponent: 1514record: 4-4 | new rating: 1519 | ||
| Grand Prix Toronto 2018 (modern) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 32 | Mitchell, Zane (1761) | Lost 0-2 | -141497 |
| 4modern | 430 | Tetreault, Gregory (1442) | Won 2-0 | +171514 |
| 5modern | 95 | Parker, Matthew 638 (1658) | Won 2-1 | +211535 |
| 6modern | 161 | Weber, Ethan (1724) | Lost 0-2 | -151520 |
| 7modern | 319 | Kasper, Mitchel (1536) | Won 2-0 | +191539 |
| 8modern | 231 | Perreault, Marc-Andre (1484) | Lost 0-2 | -191520 |
| top | average opponent: 1601record: 3-3 | new rating: 1520 | ||
| Grand Prix Atlanta 2017 (XLN standard) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 195 | Sheridan, Jaime (1500) | Won 2-0 | +181514 |
| 2standard | 229 | Spring, Tyler (1517) | Won 2-0 | +181532 |
| 3standard | 192 | Jefferson, Corey (1488) | Won 2-1 | +171549 |
| 4standard | 69 | Williams, Travis (1444) | Lost 1-2 | -201529 |
| 5standard | 272 | Tuske, Paul (1529) | Lost 0-2 | -181511 |
| top | average opponent: 1496record: 3-2 | new rating: 1511 | ||
| Grand Prix Indianapolis 2016 (modern) | starting rating: 1439 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 57 | Incorvati, David (1486) | Lost 0-2 | -171422 |
| 3modern | 666 | Showers, Christopher (1524) | Lost 0-2 | -161406 |
| 4modern | 824 | Ricks, Jacob (1481) | Won 2-0 | +191425 |
| 5modern | 536 | Bullock, Lance (1551) | Lost 1-2 | -151410 |
| 6modern | 768 | Johns, Sebastian (1480) | Won 2-1 | +191429 |
| 7modern | 499 | Michael, Gabriel (1402) | Won 2-1 | +171446 |
| 8modern | 440 | Apperson, Michael (1516) | Won 2-1 | +201466 |
| 9modern | 306 | Li, Jinlin (1723) | Won 2-1 | +221488 |
| 10modern | 1074 | Lowry, Nick (1533) | Lost 1-2 | -171471 |
| 11modern | 1091 | Menart, Michael (1545) | Won 2-0 | +191490 |
| 12modern | 1002 | Nabi, Basil (1812) | Won 2-1 | +241514 |
| 13modern | 967 | Thompson, Antonio (1483) | Lost 1-2 | -181496 |
| top | average opponent: 1545record: 7-5 | new rating: 1496 | ||
| Grand Prix Columbus 2016 (legacy) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 288 | Hillard, Zebiriah (1491) | Lost 0-2 | -181490 |
| 3legacy | 484 | Shank, Allen (1538) | Won 2-1 | +191509 |
| 4legacy | 322 | Dougan, Greg (1497) | Lost 1-2 | -181491 |
| 5legacy | 654 | Scherer, Caleb (1704) | Lost 0-2 | -151476 |
| 6legacy | 591 | Harrison, Christopher (1409) | Lost 0-2 | -191457 |
| 7legacy | 655 | Nguyen, Tri (1468) | Lost 0-2 | -181439 |
| top | average opponent: 1518record: 1-5 | new rating: 1439 | ||
| Grand Prix Detroit 2016 (modern) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 467 | Peltier, Jason (1519) | Won 2-0 | +181533 |
| 3modern | 329 | Siembor, Michael (1650) | Lost 0-2 | -161517 |
| 4modern | 413 | Flinn, Ian (1470) | Won 2-0 | +171534 |
| 5modern | 172 | DeVine, Richard (1490) | Won 2-0 | +171551 |
| 6modern | 207 | Hinkle, Charles (1844) | Lost 1-2 | -131538 |
| 7modern | 313 | Fournier, Daniel (1895) | Lost 0-2 | -111527 |
| 8modern | 484 | Marincic, David (1516) | Lost 1-2 | -191508 |
| 9modern | 517 | Hall, Shayne (1495) | Draw 0-0 | 01508 |
| top | average opponent: 1610record: 3-4-1 | new rating: 1508 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 217 | Wong, Chris (1573) | Won 2-0 | +201503 |
| 3modern | 196 | Caitung, Rocky (1448) | Won 2-1 | +171520 |
| 4modern | 65 | Ferguson, Michael (1520) | Won 2-0 | +181538 |
| 5modern | 67 | Yu, Jarvis (2039) | Won 2-0 | +271565 |
| 6modern | 37 | Sitsis, Adam (1516) | Lost 0-2 | -191546 |
| 7modern | 196 | Stella, Daniel (1631) | Lost 0-2 | -171529 |
| 8modern | 341 | Pogue, Kemper (1719) | Lost 0-2 | -141515 |
| top | average opponent: 1635record: 4-3 | new rating: 1515 | ||
| Grand Prix Indianapolis 2015 (BFZ standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 10 | Hollowell, Ryan (1517) | Lost 0-2 | -171465 |
| 3standard | 398 | Peavy, Nelson (1483) | Won 2-1 | +181483 |
| 4standard | 259 | O'Neal, Paul (1561) | Lost 0-2 | -171466 |
| 5standard | 309 | Underwood, Zach (1485) | Won 2-0 | +191485 |
| 6standard | 230 | Murray, Ryan (1376) | Won 2-0 | +161501 |
| 7standard | 129 | Riggs, Christopher (1535) | Lost 1-2 | -181483 |
| top | average opponent: 1493record: 3-3 | new rating: 1483 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 110 | Bautista, Joshua (1521) | Lost 0-2 | -181498 |
| 4sealed | 96 | Marcks, Ronald (1507) | Won 2-0 | +191517 |
| 5sealed | 74 | Burns, Richard (1498) | Lost 1-2 | -191498 |
| 6sealed | 157 | Caudillo, Zac (1601) | Lost 1-2 | -161482 |
| top | average opponent: 1532record: 1-3 | new rating: 1482 | ||
| Grand Prix Cleveland 2015 (FRF limited) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 157 | Thomas, Justin (1485) | Won 2-0 | +181532 |
| 2sealed | 71 | Andrzejewski, Bradley (1518) | Lost 0-2 | -191513 |
| 3sealed | 725 | Caton, Jonathan (1467) | Won 2-0 | +181531 |
| 4sealed | 337 | Beldon, Omar (1726) | Lost 1-2 | -151516 |
| 5sealed | 601 | Tran, Nam (1560) | Won 2-0 | +191535 |
| 6sealed | 356 | Schlegel, Thomas (1505) | Lost 0-2 | -191516 |
| top | average opponent: 1543record: 3-3 | new rating: 1516 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 275 | Katine, Sara (1500) | Won 2-0 | +181536 |
| 2sealed | 46 | Montano, Jacob (1470) | Won 2-0 | +171553 |
| 3sealed | 8 | Tomelitsch, Patrick (1560) | Lost 1-2 | -181535 |
| 4sealed | 172 | DeForge, Nathan (1578) | Won 2-0 | +181553 |
| 5sealed | 151 | Hunt, Rusty (1401) | Lost 1-2 | -201533 |
| 6sealed | 248 | Bertine, Dalton (1504) | Lost 0-2 | -191514 |
| top | average opponent: 1502record: 3-3 | new rating: 1514 | ||
| Grand Prix Cincinnati 2014 (BNG standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 182 | Rice, Jason (1475) | Lost 0-2 | -181482 |
| 2standard | 721 | Roberts, Brandon (1482) | Won 2-1 | +181500 |
| 3standard | 486 | Bond, Matthew (1587) | Won 2-0 | +191519 |
| 4standard | 240 | Johnson, Richard (1449) | Won 2-1 | +171536 |
| 5standard | 151 | Crone, Thomas (1537) | Lost 0-2 | -181518 |
| 6standard | 323 | Minniear, Adam (1547) | Won 2-1 | +181536 |
| 7standard | 187 | Barr, Alex (1610) | Lost 1-2 | -161520 |
| 8standard | 339 | Jeffrey, Dylan (1466) | Lost 0-2 | -191501 |
| 9standard | 305 | Barton, Tim (1463) | Won 2-0 | +171518 |
| top | average opponent: 1513record: 5-4 | new rating: 1518 | ||