Diaz, Matthew
Current rating: 1572
Record: 23-19
| Grand Prix Oakland 2019 (modern) | starting rating: 1581 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 11 | Densen, Todd (1469) | Lost 1-2 | -201561 |
| 2modern | 400 | Bloomfield, Jon (1484) | Won 2-0 | +171578 |
| 3modern | 399 | Lee, David (1536) | Lost 1-2 | -191559 |
| 4modern | 473 | Gluhovski, Jacob (1466) | Won 2-1 | +171576 |
| 5modern | 425 | Zolovick, Kud (1460) | Lost 0-2 | -211555 |
| 6modern | 345 | Huss, Malcolm (1519) | Won 2-1 | +181573 |
| 7modern | 305 | De Valpine, Luke (1505) | Won 2-1 | +171590 |
| 8modern | 211 | Gilison, Daniel (1620) | Lost 1-2 | -181572 |
| top | average opponent: 1507record: 4-4 | new rating: 1572 | ||
| Grand Prix Sacramento 2018 (M19 limited) | starting rating: 1589 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 410 | Jones, Christian (1475) | Lost 0-2 | -201569 |
| 2sealed | 394 | Pereira Calheiros Junior, Ailton (1485) | Lost 1-2 | -191550 |
| 3sealed | 578 | Cabero, Paul Gerald (1480) | Won 2-0 | +161566 |
| 4sealed | 430 | Baldizan, Frankie (1483) | Won 2-0 | +171583 |
| 5sealed | 412 | Behney, Ken (1566) | Won 2-1 | +171600 |
| 6sealed | 185 | Tran, Brian (1545) | Lost 1-2 | -191581 |
| top | average opponent: 1506record: 3-3 | new rating: 1581 | ||
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 10 | De Lorenze, Shannon (1500) | Won 2-0 | +181561 |
| 2standard | 303 | Trees, Jason (1488) | Won 2-0 | +161577 |
| 3standard | 129 | Bishop, David (1519) | Won 2-1 | +171594 |
| 4standard | 169 | McKeown, Zach (1480) | Won 2-0 | +161610 |
| 5standard | 17 | Marmulstein, Rion (1801) | Lost 1-2 | -141596 |
| 6standard | 157 | Borthwick, Noah (1629) | Won 2-1 | +181614 |
| 7standard | 46 | Garza, Cesar (1919) | Lost 0-2 | -121602 |
| 8standard | 89 | Goodwin, Luke (1914) | Lost 0-2 | -131589 |
| top | average opponent: 1656record: 5-3 | new rating: 1589 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1590 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 837 | Macey, Neil (1476) | Won 2-0 | +161606 |
| 2modern | 500 | Remmer, Aaron (1504) | Lost 1-2 | -201586 |
| 3modern | 816 | Cordova, Dana (1447) | Lost 1-2 | -201566 |
| 4modern | 1075 | Ranallo, Nick (1618) | Lost 0-2 | -171549 |
| 5modern | 1306 | Korczyk, David (1406) | Won 2-1 | +151564 |
| 6modern | 1177 | Stevenson, Derek (1422) | Lost 1-2 | -211543 |
| top | average opponent: 1479record: 2-4 | new rating: 1543 | ||
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 615 | Xing, Michael (1500) | Won 2-1 | +181518 |
| 2sealed | 237 | Ballard, Timothy (1496) | Won 2-1 | +181536 |
| 3sealed | 75 | Iaali, Christopher (1735) | Won 2-1 | +211557 |
| 4sealed | 139 | Schade, Eric (1571) | Won 2-0 | +181575 |
| 5sealed | 31 | Morphis, James (1741) | Lost 0-2 | -151560 |
| 6sealed | 221 | Seipert, Chris (1559) | Won 2-0 | +181578 |
| 7sealed | 70 | Tran, Dai (1504) | Won 2-1 | +171595 |
| 8sealed | 59 | Rossman, Joshua (1596) | Lost 0-2 | -181577 |
| 9sealed | 110 | Cheng, Aaron (1757) | Lost 0-2 | -151562 |
| 10draft | 148 | Hee, Jason (1562) | Lost 0-2 | -181544 |
| 12draft | 128 | Adams, Evan (1816) | Won 2-0 | +231567 |
| 13draft | 135 | Trabue, Eli (1643) | Won 2-0 | +201587 |
| 14draft | 106 | Aull, Katherine (1576) | Won 2-1 | +171604 |
| 15draft | 29 | Alter, Scott (1816) | Lost 0-2 | -141590 |
| top | average opponent: 1634record: 9-5 | new rating: 1590 | ||