Gumabon, Hercules
Current rating: 1498
Record: 12-14
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1461 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 491 | O'Neal, Josh (1485) | Lost 1-2 | -181443 |
| 2modern | 627 | Limm, Johnathan (1483) | Won 2-0 | +191462 |
| 3modern | 692 | Behrens, Joseph (1696) | Won 2-1 | +221484 |
| 4modern | 544 | Ward, Peter (1983) | Won 2-0 | +261510 |
| 5modern | 294 | Freeman, Marcelino (1812) | Lost 0-2 | -121498 |
| 6modern | 405 | Parker, Johnathan (1461) | Won 2-1 | +171515 |
| 7modern | 200 | Tang, Kevin (1582) | Lost 0-2 | -171498 |
| top | average opponent: 1643record: 4-3 | new rating: 1498 | ||
| Grand Prix Seattle 2019 (MH1 limited) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| B1sealed | 267 | Lin, Yee-Way (1398) | Won 2-1 | +171471 |
| B2sealed | 267 | Ueda, Jay (1557) | Lost 0-2 | -171454 |
| B3sealed | 267 | Nehring, Brett (1548) | Lost 0-2 | -161438 |
| B4sealed | 267 | Phipps, Darcy (1478) | Won 2-0 | +191457 |
| B5sealed | 267 | Ranstrom, Mark (1572) | Won 2-1 | +201477 |
| B6sealed | 267 | Laid, Jonas (1588) | Lost 1-2 | -161461 |
| top | average opponent: 1523record: 3-3 | new rating: 1461 | ||
| Grand Prix Portland 2018 (modern) | starting rating: 1443 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 49 | Kohrt, Ronnie (1466) | Won 2-0 | +191462 |
| 4modern | 83 | Butisbauch, Spencer (1504) | Won 2-0 | +181480 |
| 5modern | 25 | Tan, Richard (1884) | Lost 0-2 | -111469 |
| 6modern | 193 | Padlesky, Andrew (1536) | Lost 0-2 | -161453 |
| 7modern | 362 | Vicars, Trevor (1495) | Won 2-1 | +181471 |
| 8modern | 145 | Kusiek, James (1491) | Lost 1-2 | -171454 |
| top | average opponent: 1563record: 3-3 | new rating: 1454 | ||
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 235 | Kariluoma, Matti (1411) | Lost 0-2 | -191443 |
| top | record: 0-1 | new rating: 1443 | ||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 255 | Gardner, Austin (1465) | Lost 0-2 | -191481 |
| 2standard | 516 | Francis, Mitchell (1492) | Lost 0-2 | -171464 |
| 3standard | 796 | Volk, Jared (1469) | Lost 0-2 | -181446 |
| 4standard | 762 | Miller, Al (1445) | Won 2-0 | +181464 |
| 5standard | 713 | Bianchi, Kegan (1464) | Won 2-1 | +181482 |
| 6standard | 637 | McKay, Sean (1395) | Lost 1-2 | -201462 |
| top | average opponent: 1455record: 2-4 | new rating: 1462 | ||