Martinson, David
Current rating: 1478
Record: 3-4
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 243 | Jones, David (1373) | Lost 1-2 | -201480 |
| 2modern | 553 | Doherty, Ryan (1485) | Lost 1-2 | -181462 |
| 3modern | 864 | Livingston, Denise (1330) | Won 2-1 | +151477 |
| 4modern | 639 | Welch, Katie (1481) | Lost 1-2 | -181459 |
| 5modern | 782 | Twedt, Edwin (1466) | Won 2-1 | +191478 |
| 6modern | 628 | Crumb, Christopher (1536) | Won 2-0 | +191497 |
| 7modern | 510 | Baker, Bob (1475) | Lost 1-2 | -191478 |
| average opponent: 1449record: 3-4 | new rating: 1478 | |||