Atterson, John
Current rating: 1411
Record: 2-8
| Grand Prix Birmingham 2019 (modern) | starting rating: 1404 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 65 | Redman, Tobias (1500) | Won 2-0 | +201424 |
| 2modern | 111 | De La Calle Arroyo, Carlos (1701) | Lost 0-2 | -131411 |
| top | average opponent: 1601record: 1-1 | new rating: 1411 | ||
| Grand Prix Stockholm 2018 (modern) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 270 | Hulten, Alexander (1770) | Lost 0-2 | -131452 |
| 2modern | 403 | Andersson, Eddie (1571) | Lost 0-2 | -161436 |
| 3modern | 592 | Convery, Dean (1637) | Lost 0-2 | -141422 |
| 4modern | 614 | Rezazadeh, Simon (1431) | Lost 1-2 | -181404 |
| top | average opponent: 1602record: 0-4 | new rating: 1404 | ||
| Grand Prix Oklahoma City 2017 (modern) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 244 | Bailey, Jack (1510) | Won 2-1 | +181499 |
| 2modern | 53 | Thomas, David (1693) | Lost 0-2 | -141485 |
| 3modern | 55 | Fischer, Dana (1375) | Lost 0-2 | -201465 |
| top | average opponent: 1526record: 1-2 | new rating: 1465 | ||
| Grand Prix Oklahoma City 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 206 | Jarvis, Richard (1435) | Lost 1-2 | -191481 |
| top | record: 0-1 | new rating: 1481 | ||