Tuuk, Justin
Current rating: 1420
Record: 3-8
| Grand Prix Columbus 2019 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 196 | Cavers, Keegan (1488) | Won 2-1 | +181482 |
| 2modern | 8 | Grosofsky, Jonathan (1518) | Won 2-1 | +191501 |
| 3modern | 70 | Papinchak, John (1528) | Lost 0-2 | -181483 |
| 4modern | 172 | Alm, Benjamin (1954) | Lost 1-2 | -101473 |
| 5modern | 159 | Schuster, Joseph (1510) | Lost 1-2 | -171456 |
| 6modern | 221 | Slimak, John (1434) | Lost 1-2 | -181438 |
| 7modern | 180 | Anderson, Edward (1463) | Lost 0-2 | -181420 |
| average opponent: 1557record: 2-5 | new rating: 1420 | |||
| Grand Prix Detroit 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 779 | Murray, Patrick (1534) | Lost 1-2 | -171483 |
| 2modern | 643 | Amsdill, Brian (1482) | Won 2-0 | +181501 |
| 3modern | 732 | Crisman, Quinton (1498) | Lost 0-2 | -181483 |
| 4modern | 863 | DenBleyker, Brian (1446) | Lost 0-2 | -191464 |
| average opponent: 1490record: 1-3 | new rating: 1464 | |||