Jacobi, David A
Current rating: 1462
Record: 1-3-1
| Grand Prix Columbus 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 572 | Kidwell, Ross (1500) | Lost 0-2 | -181482 |
| 2legacy | 629 | Rowe, Jeremy (1350) | Draw 1-1 | -21480 |
| 3legacy | 637 | Lange, Mason (1482) | Lost 1-2 | -181462 |
| 4legacy | 688 | Gilbert, William (1464) | Won 2-1 | +181480 |
| 5legacy | 637 | Lyons, Bradley (1483) | Lost 1-2 | -181462 |
| average opponent: 1456record: 1-3-1 | new rating: 1462 | |||