Tubbs, Derrick J
Current rating: 1332
| Grand Prix Chicago 2012 (modern) | starting rating: 1396 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 302 | Pedersen Ii, Robert (1500) | Lost 0-2 | -161380 |
| 2modern | 386 | Ferry, Steven (1503) | Lost 0-2 | -161364 |
| 3modern | 487 | Studley, James (1526) | Lost 0-2 | -151349 |
| 4modern | 524 | Hartman, James (1415) | Lost 0-2 | -171332 |
| top | average opponent: 1486record: 0-4 | new rating: 1332 | ||
| Grand Prix Indianapolis 2012 (legacy) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 4legacy | 28 | Evans, Zachary (1500) | Lost 0-2 | -171428 |
| 5legacy | 154 | Knox, Robert (1536) | Lost 0-2 | -161412 |
| 6legacy | 227 | Ferguson, Ando (1506) | Lost 0-2 | -161396 |
| top | average opponent: 1514record: 0-3 | new rating: 1396 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 96 | Marion, Pascal (1500) | Draw 1-1 | 01500 |
| 2legacy | 160 | Wanich, Mark (1499) | Lost 0-2 | -181482 |
| 3legacy | 240 | Allcock, Trever (1432) | Lost 0-2 | -191463 |
| 4legacy | 280 | Burgstahler, Inga (1464) | Lost 1-2 | -181445 |
| top | average opponent: 1474record: 0-3-1 | new rating: 1445 | ||