Yerkey, Bernie
Current rating: 1411
Record: 1-6
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 430 | Bradley, Noah (1455) | Lost 0-2 | -171410 |
| 2sealed | 350 | Seaver, Ronald (1479) | Won 2-0 | +191429 |
| 3sealed | 518 | Martin, Ronald (1460) | Lost 0-2 | -181411 |
| average opponent: 1465record: 1-2 | new rating: 1411 | |||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 231 | Kopchik, Steve (1565) | Lost 1-2 | -171483 |
| 2modern | 916 | Gillespie, Lee (1481) | Lost 0-2 | -181465 |
| 3modern | 1256 | Goheen, Rigel (1464) | Lost 0-2 | -181447 |
| 4modern | 1245 | Papcun, Michael (1335) | Lost 0-2 | -201427 |
| average opponent: 1461record: 0-4 | new rating: 1427 | |||