Cornwall, Richard
Current rating: 1467
Record: 5-7-1
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 295 | Chen, Jimmy (1606) | Lost 0-2 | -171502 |
| 2sealed | 385 | Strickman, Ian (1646) | Lost 0-0 | -151487 |
| 3sealed | 489 | Morris, Charles (1364) | Lost 0-2 | -201467 |
| 4sealed | 497 | Small, Brandon (1382) | Won 2-0 | +161483 |
| 5sealed | 433 | Frank, Andrew (1574) | Lost 0-2 | -161467 |
| average opponent: 1514record: 1-4 | new rating: 1467 | |||
| Grand Prix Las Vegas 2018 (modern) (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 280 | Nelson, Matthew (1466) | Won 2-0 | +171517 |
| 2modern | 146 | Helweg, Rory (1520) | Won 2-0 | +181535 |
| 3modern | 501 | Dye, Jordan (1498) | Lost 0-2 | -181517 |
| 4modern | 290 | Milazzo, Angelo (1530) | Lost 0-2 | -181499 |
| 5modern | 533 | Soto, Jakob (1501) | Won 2-1 | +181517 |
| 6modern | 419 | Giron, Angel (1495) | Lost 1-2 | -181499 |
| 7modern | 506 | Banker, Aaron (1555) | Won 2-0 | +191518 |
| 8modern | 422 | Stilts, Adam (1573) | Draw 1-1 | +11519 |
| average opponent: 1517record: 4-3-1 | new rating: 1519 | |||