Walters, Jonathan
Current rating: 1471
| Grand Prix Cleveland 2019 (RNA limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 297 | Fort, Brian (1553) | Lost 0-2 | -161448 |
| 2sealed | 280 | Carstens, Adam (1482) | Won 2-1 | +191467 |
| 3sealed | 387 | Martin, Steven 0571 (1538) | Won 2-1 | +191486 |
| 4sealed | 347 | Kenney, Michael (1683) | Lost 0-2 | -151471 |
| top | average opponent: 1564record: 2-2 | new rating: 1471 | ||
| Grand Prix Vancouver 2015 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 418 | Mann, Robert (1500) | Lost 0-2 | -181464 |
| 2modern | 420 | LaPorte, Jordan (1482) | Won 2-1 | +191483 |
| 3modern | 244 | Ungerecht, Timothy (1468) | Lost 0-2 | -191464 |
| top | average opponent: 1483record: 1-2 | new rating: 1464 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 325 | Cruz, Wilfredo (1500) | Lost 0-2 | -181482 |
| top | record: 0-1 | new rating: 1482 | ||