Grimmer, Jonathan
Current rating: 1378
Record: 3-10
| Grand Prix Oakland 2016 (BFZ standard) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 71 | Smith, Dillon (1449) | Lost 1-2 | -181445 |
| 2standard | 584 | Tang, Tony (1671) | Lost 0-2 | -141431 |
| 3standard | 809 | Carder, Ryan (1492) | Lost 1-2 | -171414 |
| 4standard | 846 | Garcia, Matthew (1377) | Lost 1-2 | -191395 |
| 5standard | 836 | Nelson, Rob (1433) | Lost 0-2 | -171378 |
| average opponent: 1484record: 0-5 | new rating: 1378 | |||
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 191 | Dilley, Nathan (1564) | Lost 0-2 | -171483 |
| 2standard | 335 | Fuller, Taylor (1482) | Won 2-0 | +181501 |
| 3standard | 283 | Green, Adam (1500) | Lost 0-2 | -181483 |
| 4standard | 470 | Davis, Christopher (1411) | Lost 1-2 | -191464 |
| 5standard | 484 | Hoch, Nick (1463) | Won 2-0 | +181482 |
| 6standard | 434 | Grayson, Paul (1482) | Lost 1-2 | -181464 |
| 7standard | 380 | Eisch, Laura (1461) | Won 2-0 | +181482 |
| 8standard | 279 | Andrela, Aluchan (1448) | Lost 1-2 | -191463 |
| average opponent: 1476record: 3-5 | new rating: 1463 | |||