Yamada, Sean
Current rating: 1463
Record: 21-23
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 254 | Freeman, Wilson (1544) | Lost 0-2 | -171499 |
| 2sealed | 370 | Jayne, William (1482) | Lost 0-0 | -191480 |
| 3sealed | 478 | Radaszkiewicz, Michael (1496) | Lost 0-2 | -171463 |
| top | average opponent: 1507record: 0-3 | new rating: 1463 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 161 | Henrie, Easton (1468) | Lost 1-2 | -191500 |
| 2sealed | 233 | Shapiro, Benjamin (1484) | Won 2-1 | +181518 |
| 3sealed | 217 | Campbell, Dwayne (1500) | Won 2-0 | +171535 |
| 4sealed | 106 | Yang, Xiao Yu (Roy) (1557) | Lost 0-2 | -171518 |
| 5sealed | 170 | Romero, Michael (1403) | Won 2-0 | +161534 |
| 6sealed | 110 | Strobino, Samuel (1559) | Lost 0-2 | -181516 |
| top | average opponent: 1495record: 3-3 | new rating: 1516 | ||
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 447 | Aral, Jason (1582) | Lost 1-2 | -171525 |
| 2sealed | 495 | Potter, Alex (1482) | Won 2-0 | +171542 |
| 3sealed | 476 | Raymond, Patrick (1462) | Lost 0-2 | -191523 |
| 4sealed | 540 | Krishnasamy, Kiran (1450) | Won 2-0 | +161539 |
| 5sealed | 505 | Foster, Michael (1408) | Lost 0-2 | -201519 |
| top | average opponent: 1476record: 2-3 | new rating: 1519 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 714 | Myers, Nicholas (1526) | Won 2-0 | +171585 |
| 2legacy | 799 | Kame, Justin (1516) | Lost 1-2 | -191566 |
| 3legacy | 1016 | Ivey, Greg (1526) | Won 2-0 | +171583 |
| 4legacy | 1025 | DeMarino, Matt (1360) | Lost 1-2 | -221561 |
| 5legacy | 1026 | Hart, Alexander M (1501) | Lost 0-2 | -191542 |
| top | average opponent: 1486record: 2-3 | new rating: 1542 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1596 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 661 | Butari, Chris (1500) | Won 2-0 | +161612 |
| 2sealed | 186 | Ricco, Tara (1397) | Won 2-0 | +141626 |
| 3sealed | 302 | Pascal, Brandon (1582) | Lost 1-2 | -181608 |
| 4sealed | 263 | Paschover, Marc (1496) | Lost 0-2 | -201588 |
| 5sealed | 559 | St. Onge, Jon (1500) | Lost 0-2 | -201568 |
| top | average opponent: 1495record: 2-3 | new rating: 1568 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 802 | Krizer, Brendon (1519) | Won 2-1 | +201465 |
| 2sealed | 782 | Cook, Samuel (1521) | Won 2-1 | +191484 |
| 3sealed | 754 | White, Kevin (1500) | Won 2-1 | +181502 |
| 4sealed | 750 | Scott, Zachary (1450) | Won 2-0 | +171519 |
| 5sealed | 713 | Ochoa, David (1891) | Won 2-0 | +251544 |
| 6sealed | 672 | Braverman, Michael (1742) | Lost 1-2 | -151529 |
| 7sealed | 761 | Velazquez, Michael (1586) | Won 2-1 | +191548 |
| 8sealed | 318 | Suarez, Daniel (1764) | Lost 1-2 | -141534 |
| 9sealed | 357 | Jessup, Daniel (1498) | Won 2-0 | +171551 |
| 10sealed | 51 | Patel, Neil (1601) | Won 2-1 | +191570 |
| 11sealed | 93 | Niu, Bowen (1566) | Won 2-0 | +181588 |
| 12draft | 41 | Polimine, Wayne (1594) | Won 2-0 | +181606 |
| 13draft | 40 | Lloyd, Alex (1787) | Lost 1-2 | -141592 |
| 14draft | 37 | Toups, Andrew (1666) | Won 2-0 | +191611 |
| 15draft | 41 | Goldstein, Danny (1762) | Lost 0-2 | -151596 |
| 16draft | 24 | Butler, Thomas (1629) | Won 2-1 | +181614 |
| 17draft | 61 | Rice, Sean (1605) | Lost 0-2 | -181596 |
| top | average opponent: 1628record: 12-5 | new rating: 1596 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 43 | Patton, Brandon (1464) | Lost 1-2 | -191481 |
| 2sealed | 325 | Rabinowitz, Dmitri (1481) | Lost 0-2 | -181463 |
| 3sealed | 397 | Amento, Joey (1463) | Lost 0-2 | -181445 |
| top | average opponent: 1469record: 0-3 | new rating: 1445 | ||