Mann, Jon
Current rating: 1467
Record: 1-3
| Grand Prix Cleveland 2019 (RNA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 237 | Baraona, Jacob (1500) | Won 2-0 | +181518 |
| 2sealed | 157 | Spry, Richard (1486) | Lost 0-2 | -191499 |
| 3sealed | 366 | Xiong, Jian (1700) | Lost 0-2 | -141485 |
| 4sealed | 478 | Nguyen, Scott (1470) | Lost 0-2 | -181467 |
| average opponent: 1539record: 1-3 | new rating: 1467 | |||