Jarosinski, Piotr
Current rating: 1463
Record: 1-3
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 262 | Manley, Greg (1500) | Lost 0-2 | -181482 |
| 2sealed | 481 | Nelson, Rob (1436) | Lost 0-1 | -191463 |
| 3sealed | 915 | Dudley, Mark (1464) | Won 2-0 | +181481 |
| 4sealed | 757 | Daratany, George (1464) | Lost 0-2 | -181463 |
| average opponent: 1466record: 1-3 | new rating: 1463 | |||