Mason, Greg
Current rating: 1564
Record: 34-29-1
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1609 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 432 | Furlow, Charlene (1530) | Lost 1-2 | -201589 |
| 2modern | 579 | Wilbert, Adam (1526) | Lost 0-2 | -191570 |
| 3modern | 792 | Corral, Jarred (1355) | Won 2-0 | +141584 |
| 4modern | 709 | Wofford, Xavier (1486) | Lost 1-2 | -201564 |
| top | average opponent: 1474record: 1-3 | new rating: 1564 | ||
| Grand Prix Oakland 2019 (modern) | starting rating: 1597 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 55 | Vo, Tony (1500) | Won 2-1 | +171614 |
| 2modern | 15 | Gluhovski, Jacob (1501) | Won 2-1 | +151629 |
| 3modern | 122 | Moretti, Luca (1360) | Won 2-1 | +141643 |
| 4modern | 44 | Desangles, Anthony (1681) | Lost 0-2 | -181625 |
| 5modern | 237 | Truong, Richard (1409) | Won 2-1 | +141639 |
| 6modern | 141 | Ahmad, Sam (1552) | Won 2-1 | +171656 |
| 7modern | 80 | Chen, Jiangming (1567) | Won 2-0 | +161672 |
| 8modern | 33 | Bernat, Michael (2226) | Lost 0-2 | -91663 |
| 9modern | 93 | Park, Coleman (1573) | Lost 1-2 | -191644 |
| 10modern | 101 | Colburn, Samuel (1550) | Won 2-1 | +161660 |
| 11modern | 88 | Crosby, Brandon (1724) | Lost 1-2 | -171643 |
| 12modern | 85 | Kincey, Lauphiette (1665) | Lost 1-2 | -171626 |
| 13modern | 83 | Mallow, Vince (1678) | Lost 0-2 | -171609 |
| top | average opponent: 1614record: 7-6 | new rating: 1609 | ||
| Grand Prix Seattle 2018 (legacy) (legacy) | starting rating: 1591 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 347 | Kostovic, Pavle (1527) | Won 2-1 | +171608 |
| 2legacy | 317 | Wyly, John (1507) | Won 2-0 | +161624 |
| 3legacy | 42 | Oien, Christopher (1775) | Won 2-0 | +211645 |
| 4legacy | 121 | Weiser, Daniel (2103) | Lost 1-2 | -101635 |
| 5legacy | 271 | Rahill, Nicholis (1662) | Lost 1-2 | -181617 |
| 6legacy | 274 | Hrala, Justin (1520) | Lost 1-2 | -201597 |
| top | average opponent: 1682record: 3-3 | new rating: 1597 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 825 | Robertson, David (1348) | Won 2-1 | +141575 |
| 2modern | 382 | Larsen, Andrew (1342) | Won 2-0 | +141589 |
| 3modern | 367 | Garcia, Remulo (1479) | Lost 0-2 | -201569 |
| 4modern | 768 | Wogensen, Dylan (1521) | Won 2-0 | +171586 |
| 5modern | 554 | Avitollo, Anthony (1661) | Won 2-1 | +191605 |
| 6modern | 168 | Baker, Ricky (1556) | Won 2-0 | +181623 |
| 7modern | 250 | Cusick, Brian (1712) | Won 2-1 | +191642 |
| 8modern | 29 | Waltzer, Silas (1578) | Lost 1-2 | -191623 |
| 9modern | 157 | Friedman, Samuel (1956) | Won 2-1 | +241647 |
| 10modern | 186 | Roach, Zachary (1663) | Lost 0-2 | -181629 |
| 11modern | 72 | Green, Richard (1498) | Lost 1-2 | -201609 |
| 12modern | 341 | Whiteside, Edward (1624) | Lost 0-2 | -181591 |
| top | average opponent: 1578record: 7-5 | new rating: 1591 | ||
| Grand Prix Oakland 2016 (BFZ standard) | starting rating: 1570 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 370 | Valentine, Joseph (1468) | Draw 1-1 | -21568 |
| 2standard | 441 | Fliman, Miguel (1513) | Won 2-1 | +171585 |
| 3standard | 405 | Barnum, James (1505) | Lost 1-2 | -191566 |
| 4standard | 595 | Gravance, Tyler (1500) | Lost 1-2 | -201546 |
| 5standard | 718 | Marasco, Michael (1482) | Won 2-0 | +171563 |
| 6standard | 556 | Gilbertson, Joshua (1489) | Won 2-1 | +171580 |
| 7standard | 404 | Villarreal, Mario (1527) | Lost 1-2 | -191561 |
| top | average opponent: 1498record: 3-3-1 | new rating: 1561 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 254 | Steele, Carly (1396) | Won 2-1 | +151552 |
| 2sealed | 43 | Kamin, Michael (1517) | Won 2-0 | +181570 |
| 3sealed | 12 | Bryan, Steven (1500) | Won 2-1 | +171587 |
| 4sealed | 68 | Gallagher, Sean (1608) | Won 2-0 | +181605 |
| 5sealed | 9 | Durward, Caleb (1729) | Lost 0-2 | -161589 |
| 6sealed | 38 | Harris, Eli (1588) | Won 2-0 | +181607 |
| 7sealed | 50 | Breitman, Alan (1557) | Lost 1-2 | -191588 |
| 8sealed | 86 | Hart, Ben (1573) | Lost 1-2 | -181570 |
| top | average opponent: 1559record: 5-3 | new rating: 1570 | ||
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 1028 | Campusano, Eric (1635) | Lost 0-2 | -171540 |
| 3sealed | 1192 | Cheney, Derek (1486) | Won 2-0 | +171557 |
| 4sealed | 1115 | Scanlon, Thomas (1555) | Won 2-0 | +181575 |
| 5sealed | 1067 | Vieselmeyer, William (1466) | Lost 1-2 | -201555 |
| 6sealed | 1177 | Boland, Michael (1557) | Lost 0-2 | -181537 |
| top | average opponent: 1540record: 2-3 | new rating: 1537 | ||
| Grand Prix Oakland 2013 (M14 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 166 | Thomason, Lane (1500) | Lost 1-2 | -181482 |
| 2sealed | 496 | Vera, Alberto (1482) | Won 2-0 | +181500 |
| 3sealed | 513 | Lazarus, Jeremy (1500) | Won 2-0 | +181518 |
| 4sealed | 349 | SHEETS, BRANDT M (1518) | Won 2-0 | +181536 |
| 5sealed | 80 | Rowlette, Thomas (1537) | Won 2-1 | +181554 |
| 6sealed | 55 | Losh, Jonathan (1572) | Won 2-0 | +181572 |
| 7sealed | 37 | McClure, Blake (1654) | Lost 1-2 | -161556 |
| 8sealed | 99 | Wadsworth, Jared (1590) | Won 2-0 | +181574 |
| 9sealed | 96 | Miller, Relando L (1578) | Lost 1-2 | -171557 |
| top | average opponent: 1548record: 6-3 | new rating: 1557 | ||