Toskin, Mattie
Current rating: 1415
Record: 1-6
| Grand Prix Columbus 2019 (modern) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 100 | Selim, Paul (1463) | Lost 0-2 | -181428 |
| 2modern | 171 | Austin, Shawn (1617) | Won 2-0 | +221450 |
| 3modern | 203 | Fouch, Chris (1504) | Lost 0-2 | -171433 |
| 4modern | 252 | Miller, Jeremy (1427) | Lost 1-2 | -181415 |
| average opponent: 1503record: 1-3 | new rating: 1415 | |||
| Grand Prix Columbus 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 19 | Kisilewicz, Audrey (1500) | Lost 0-2 | -181482 |
| 2modern | 323 | Kosman, David (1482) | Lost 1-2 | -181464 |
| 3modern | 412 | Hancher, Gregory (1464) | Lost 0-2 | -181446 |
| average opponent: 1482record: 0-3 | new rating: 1446 | |||