Dudley, Mark
Current rating: 1403
| Grand Prix Seattle 2019 (MH1 limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| B1sealed | 578 | Thuemler, Joseph (1819) | Lost 0-2 | -111434 |
| B2sealed | 292 | Heinonen, Chris (1501) | Lost 0-2 | -171417 |
| B3sealed | 519 | McKittrick, Richard (1375) | Won 2-0 | +171434 |
| B4sealed | 481 | Raval, Mahendra (1698) | Lost 1-2 | -131421 |
| B5sealed | 417 | Reback, Ryli (1414) | Lost 0-2 | -181403 |
| top | average opponent: 1561record: 1-4 | new rating: 1403 | ||
| Grand Prix Sacramento 2018 (M19 limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 281 | Scheid, Eric (1500) | Lost 0-2 | -181463 |
| 2sealed | 320 | Bronkema, David (1482) | Lost 0-2 | -181445 |
| top | average opponent: 1491record: 0-2 | new rating: 1445 | ||
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 464 | Ma, Alvin (1470) | Lost 1-2 | -191481 |
| 2sealed | 739 | Brewster, Aaron (1488) | Lost 0-2 | -171464 |
| 3sealed | 915 | Jarosinski, Piotr (1463) | Lost 0-2 | -181446 |
| 4sealed | 895 | Fielder, Ray (1430) | Won 2-1 | +171463 |
| 5sealed | 802 | Kim, Gregory (1429) | Won 2-0 | +181481 |
| 6sealed | 669 | Ranstrom, Eric (1487) | Won 2-0 | +181499 |
| 7sealed | 455 | Costanzo, David (1498) | Lost 0-2 | -181481 |
| top | average opponent: 1466record: 3-4 | new rating: 1481 | ||