Tyndall, Don
Current rating: 1419
Record: 3-8
| Grand Prix Denver 2013 (legacy) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 68 | Caffrey, Michael (1606) | Lost 0-2 | -151431 |
| 2legacy | 256 | Keeth, Christian (1632) | Lost 1-2 | -141417 |
| 3legacy | 292 | Crook, Matthew (1433) | Lost 1-2 | -181399 |
| 4legacy | 327 | McGough, Joseph (1512) | Won 2-1 | +201419 |
| 5legacy | 296 | Vander Ploeg, Kristofer (1413) | Won 2-0 | +181437 |
| 6legacy | 231 | Mason, Stina M (1448) | Lost 0-2 | -181419 |
| average opponent: 1508record: 2-4 | new rating: 1419 | |||
| Grand Prix Denver 2011 (MBS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 452 | Gallagher, Paul (1528) | Lost 0-2 | -171483 |
| 2sealed | 573 | Updegrave, Andrew (1482) | Lost 1-2 | -181465 |
| 3sealed | 554 | Segmiller, Jacob (1464) | Lost 0-2 | -191446 |
| 4sealed | 578 | Padilla, Jacob (1445) | Won 2-0 | +181464 |
| 5sealed | 558 | Hoberg, Richard (1463) | Lost 0-2 | -181446 |
| average opponent: 1476record: 1-4 | new rating: 1446 | |||