Sher, Coby
Current rating: 1448
| Grand Prix Minneapolis 2019 (modern) | starting rating: 1457 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 99 | Chang, Lao (1500) | Won 2-1 | +191476 |
| 2modern | 56 | Murphy, Corey (1464) | Lost 1-2 | -181458 |
| 3modern | 278 | Ford, Chad (1499) | Won 2-0 | +191477 |
| 4modern | 281 | Hahn, William (1882) | Lost 0-2 | -111466 |
| 5modern | 228 | Malm, Erik (1501) | Lost 0-2 | -181448 |
| top | average opponent: 1569record: 2-3 | new rating: 1448 | ||
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 339 | Schatzman, Christopher (1541) | Won 2-0 | +191483 |
| 4modern | 201 | Chan, Robbie (1643) | Lost 0-2 | -151468 |
| 5modern | 305 | Sheldon, Donald (1550) | Lost 0-2 | -161452 |
| 6modern | 521 | Jasnoch, August (1520) | Won 2-0 | +191471 |
| 7modern | 391 | Biwersi, David (1541) | Lost 0-2 | -171454 |
| 8modern | 369 | Wallraff, Jacob (1490) | Won 2-0 | +191473 |
| 9modern | 306 | Rayon, Adolfo (1617) | Lost 1-2 | -161457 |
| top | average opponent: 1557record: 3-4 | new rating: 1457 | ||
| Grand Prix Kansas City 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 157 | Russi, Jacob (1503) | Lost 1-2 | -181482 |
| 2modern | 283 | Bergman, Peter (1466) | Lost 0-2 | -181464 |
| top | average opponent: 1485record: 0-2 | new rating: 1464 | ||