Rosborough, Josh
Current rating: 1503
Record: 3-3
| Grand Prix Toronto 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 182 | Rosillo Salazar, Jose (1433) | Won 2-0 | +171517 |
| 2modern | 167 | Hendriks, Scott (1516) | Lost 0-2 | -181499 |
| 3modern | 400 | Shea, Kevin (1518) | Lost 1-2 | -181481 |
| 4modern | 696 | Grabianowski, Joe (1480) | Won 2-0 | +181499 |
| 5modern | 602 | Vyfhuis, Adam (1498) | Won 2-0 | +181517 |
| 6modern | 377 | Sandrin, Ryan (1745) | Lost 0-2 | -141503 |
| average opponent: 1532record: 3-3 | new rating: 1503 | |||