Decker, Liam
Current rating: 1504
| Grand Prix Austin 2020 (modern) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 91 | Cornelius, Derek (1566) | Lost 0-2 | -161483 |
| 2modern | 199 | Stange, Christopher (1482) | Lost 1-2 | -181465 |
| 3modern | 340 | Garza, Justin (1479) | Won 2-0 | +181483 |
| 4modern | 311 | Schaible, Sam (1482) | Won 2-0 | +181501 |
| 5modern | 235 | Messer, Kaleb (1484) | Won 2-1 | +181519 |
| 6modern | 181 | Mera, Giovanni (1687) | Lost 1-2 | -151504 |
| top | average opponent: 1530record: 3-3 | new rating: 1504 | ||
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1527 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 392 | Bursavich, Austin (1970) | Lost 1-2 | -101517 |
| 2modern | 421 | Summers, Braunson (1428) | Lost 1-2 | -201497 |
| 3modern | 549 | Crider, Cody (1463) | Won 2-0 | +181515 |
| 4modern | 501 | Hu, Haibing (1658) | Lost 1-2 | -161499 |
| top | average opponent: 1630record: 1-3 | new rating: 1499 | ||
| Grand Prix Hartford 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 83 | Comeau, Paul (1411) | Lost 1-2 | -201480 |
| 2modern | 604 | Rhoads, Jordan (1481) | Won 2-0 | +181498 |
| 3modern | 422 | Champagne, Dean (1547) | Won 2-1 | +191517 |
| 4modern | 520 | Fasnacht, Cheshire (1567) | Won 2-0 | +191536 |
| 5modern | 296 | Bilgen, Murat (1534) | Lost 0-2 | -181518 |
| 6modern | 492 | Blesso, Marc (1721) | Won 2-0 | +221540 |
| 7modern | 281 | Benns, Brian (1859) | Lost 0-2 | -131527 |
| top | average opponent: 1589record: 4-3 | new rating: 1527 | ||