Preston, Andrew
Current rating: 1505
Record: 3-3
| Grand Prix Columbus 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 31 | Pinkerton, Dylan (1500) | Won 2-0 | +181518 |
| 2modern | 23 | Myers, RJ (1503) | Won 2-0 | +181536 |
| 3modern | 39 | McCord, Bryan (1524) | Lost 0-2 | -181518 |
| 4modern | 100 | Nguyen, Tuan (1800) | Won 2-1 | +231541 |
| 5modern | 86 | Rice, Paul (1531) | Lost 0-2 | -191522 |
| 6modern | 114 | Hodgkin, Zac (1569) | Lost 1-2 | -171505 |
| average opponent: 1571record: 3-3 | new rating: 1505 | |||