Mitchell, Don
Current rating: 1416
Record: 4-9
| Grand Prix Las Vegas 2018 (modern) (modern) | starting rating: 1451 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 259 | Crosthwaite, Rodolfo (1459) | Lost 1-2 | -181433 |
| 2modern | 622 | Meyers, James (1464) | Lost 1-2 | -171416 |
| top | average opponent: 1462record: 0-2 | new rating: 1416 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 325 | Salinas, Eloy (1425) | Lost 0-2 | -191451 |
| 2standard | 661 | Gaxiola, Efren (1465) | Won 2-1 | +181469 |
| 3standard | 318 | Cunningham, Peter (1488) | Won 2-1 | +191488 |
| 4standard | 226 | Demute, Mike (1397) | Lost 0-2 | -201468 |
| 5standard | 363 | Osborne, Gene (1510) | Lost 0-2 | -171451 |
| top | average opponent: 1457record: 2-3 | new rating: 1451 | ||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 13 | Epperson, William (1484) | Won 2-1 | +181500 |
| 2standard | 257 | Litton, Jayson (1611) | Lost 0-2 | -161484 |
| 3standard | 97 | Crosby, Michael (1696) | Lost 0-2 | -141470 |
| 4standard | 700 | Martinez, Phillip (1463) | Won 2-1 | +181488 |
| 5standard | 482 | Fox, Walter (1497) | Lost 1-2 | -181470 |
| top | average opponent: 1550record: 2-3 | new rating: 1470 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 120 | Jefferies, Mark (1500) | Lost 0-2 | -181482 |
| top | record: 0-1 | new rating: 1482 | ||