Stephani, Jonathan
Current rating: 1434
Record: 2-6
| Grand Prix Portland 2018 (modern) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 189 | Bergeron, Mitchell (1439) | Won 2-0 | +181464 |
| 2modern | 230 | Knapp, Charles (1459) | Lost 0-2 | -181446 |
| 3modern | 712 | Hampton, Jesse (1759) | Lost 0-2 | -121434 |
| 4modern | 744 | Rautenbach, Nicky (1378) | Lost 0-2 | -191415 |
| 5modern | 747 | DeMeulle, Nicholas (1462) | Won 2-1 | +191434 |
| average opponent: 1500record: 2-3 | new rating: 1434 | |||
| Grand Prix Seattle 2018 (legacy) (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 145 | Larson, Eric (1460) | Lost 0-2 | -191481 |
| 2legacy | 528 | Tyrrell, Liam (1570) | Lost 1-2 | -161465 |
| 3legacy | 700 | Lee, Jonathan (1435) | Lost 1-2 | -191446 |
| average opponent: 1489record: 0-3 | new rating: 1446 | |||