Mackey, Thomas
Current rating: 1420
Record: 8-14
| Grand Prix Austin 2020 (modern) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 13 | McKinney, David (1500) | Lost 0-2 | -171416 |
| 2modern | 210 | Sosa, Adrian (1482) | Won 2-0 | +191435 |
| 3modern | 221 | Simon, Cody (1475) | Lost 0-2 | -171418 |
| 4modern | 292 | Hebda, Peter (1480) | Won 2-0 | +191437 |
| 5modern | 202 | Alley, Donald (1502) | Lost 1-2 | -171420 |
| top | average opponent: 1488record: 2-3 | new rating: 1420 | ||
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1459 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 329 | Simkovich, Robert (1566) | Lost 0-2 | -161443 |
| 3modern | 462 | Lewicki, Alexander (1587) | Won 2-0 | +211464 |
| 4modern | 299 | Cailloux, Jacob (1538) | Lost 0-2 | -171447 |
| 5modern | 470 | Topham, Carruth (1483) | Won 2-0 | +191466 |
| 6modern | 279 | McClarnon, Marshall (1520) | Lost 1-2 | -171449 |
| 7modern | 395 | Heath, Joel (1569) | Lost 0-2 | -161433 |
| top | average opponent: 1544record: 2-4 | new rating: 1433 | ||
| Grand Prix Oakland 2019 (modern) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 69 | Dennett, Zachary (1484) | Lost 1-2 | -181430 |
| 2modern | 395 | Poncelet, Kevin (1630) | Lost 0-2 | -141416 |
| 3modern | 473 | Perera, Vittorio (1672) | Lost 1-2 | -131403 |
| 4modern | 530 | Lindsay, Maceo (1448) | Won 2-0 | +181421 |
| 5modern | 443 | Nast, Thomas (1464) | Won 2-0 | +191440 |
| 6modern | 372 | Tilenius, Liam (1455) | Won 2-0 | +181458 |
| 7modern | 276 | Sendaydiego, Curt (1406) | Won 2-1 | +171475 |
| 8modern | 224 | Brewer, Erik (1567) | Lost 1-2 | -161459 |
| top | average opponent: 1516record: 4-4 | new rating: 1459 | ||
| Grand Prix Portland 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 566 | Gosse, William (1544) | Lost 0-2 | -171483 |
| 2modern | 493 | Hui, Yiqun (1535) | Lost 1-2 | -171466 |
| 3modern | 810 | Garvey, Dallas (1465) | Lost 0-2 | -181448 |
| top | average opponent: 1515record: 0-3 | new rating: 1448 | ||