Dudson, Jeff
Current rating: 1495
Record: 7-8-1
| Grand Prix Detroit 2016 (modern) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 823 | Clark, Eric (1566) | Won 2-0 | +201467 |
| 2modern | 555 | Coumtryman, Joe (1500) | Lost 1-2 | -181449 |
| 3modern | 982 | Perteet, Stephen (1498) | Lost 1-2 | -171432 |
| 4modern | 920 | Pearson, Dennis (1425) | Won 2-0 | +181450 |
| 5modern | 869 | Schultz, Aaron (1502) | Won 2-1 | +191469 |
| 6modern | 642 | Silberman, Philip (1664) | Won 2-1 | +221491 |
| 7modern | 348 | Brenner, Nicholas (1565) | Lost 1-2 | -171474 |
| 8modern | 526 | Olin, Mark (1518) | Won 2-1 | +191493 |
| 9modern | 378 | Sprunger, Brock (1614) | Draw 1-1 | +21495 |
| average opponent: 1539record: 5-3-1 | new rating: 1495 | |||
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 698 | Arquette, Phil (1500) | Lost 0-2 | -181482 |
| 2standard | 581 | Alejos, Miguel (1482) | Won 2-0 | +181500 |
| 3standard | 896 | Bianchi, Colin (1483) | Lost 1-2 | -181482 |
| 4standard | 946 | Day, Joseph F (1498) | Won 2-1 | +181500 |
| 5standard | 875 | Nash, David (1526) | Lost 0-2 | -181482 |
| 6standard | 785 | Olsen, Dan (1544) | Lost 0-2 | -161466 |
| 7standard | 776 | Rogers, Tully (1416) | Lost 0-2 | -191447 |
| average opponent: 1493record: 2-5 | new rating: 1447 | |||