Marsh, Dan
Current rating: 1452
| Grand Prix Detroit 2019 (M20 limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 24 | Smith, Trey (1411) | Lost 0-2 | -191465 |
| 3sealed | 264 | Smythe, Tony (1659) | Lost 1-2 | -151450 |
| 4sealed | 253 | Joshi, Prithvi (1483) | Won 2-1 | +191469 |
| 5sealed | 212 | Dupuis, Josh (1509) | Lost 1-2 | -171452 |
| top | average opponent: 1516record: 1-3 | new rating: 1452 | ||
| Grand Prix Memphis 2018 (RIX standard) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 254 | Miller, Justin (1493) | Draw 1-1 | -11502 |
| 2standard | 245 | Sperka, John Thor (1498) | Lost 0-2 | -181484 |
| 3standard | 445 | Marbury, Eric (1482) | Won 2-0 | +181502 |
| 4standard | 360 | Dunbar, Ryan (1500) | Lost 1-2 | -181484 |
| top | average opponent: 1493record: 1-2-1 | new rating: 1484 | ||
| Grand Prix Atlanta 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 184 | LeMay, Brandon (1495) | Won 2-1 | +181518 |
| 2standard | 141 | Lawrence, Paul (1446) | Lost 1-2 | -191499 |
| 3standard | 341 | Shrader, Lance (1707) | Draw 1-1 | +31502 |
| 4standard | 451 | Hurtubise, Jay (1486) | Won 2-0 | +181520 |
| 5standard | 73 | Green, Richard (1551) | Lost 0-2 | -171503 |
| top | average opponent: 1537record: 2-2-1 | new rating: 1503 | ||