Huffstetler, David
Current rating: 1388
Record: 10-18
| Grand Prix Washington DC 2017 (HOU standard) | starting rating: 1386 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 86 | Carter, Ariel (1512) | Won 2-0 | +201406 |
| 2standard | 165 | Jeffries, Richard (1522) | Lost 1-2 | -161390 |
| 3standard | 483 | Blankenship, Freddie (1482) | Won 2-1 | +201410 |
| 4standard | 458 | Esquivel, Jorge (1728) | Lost 0-2 | -121398 |
| 5standard | 525 | Hassett, Eric (1499) | Won 2-1 | +201418 |
| 6standard | 406 | Larratta, Leonard (1522) | Won 2-1 | +191437 |
| 7standard | 303 | Getz, Jacob (1547) | Lost 1-2 | -161421 |
| 8standard | 351 | Bonamico, Jared (1496) | Lost 0-2 | -161405 |
| 9standard | 406 | Friedman, Gene (1481) | Lost 1-2 | -171388 |
| top | average opponent: 1532record: 4-5 | new rating: 1388 | ||
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1392 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 111 | Feldman, Joshua (1546) | Lost 0-2 | -151377 |
| 2sealed | 550 | Dutton, Troy (1473) | Lost 0-2 | -171360 |
| 3sealed | 719 | Robens, Charles (1395) | Won 2-1 | +191379 |
| 4sealed | 590 | Dunn, David (1466) | Lost 0-2 | -161363 |
| 5sealed | 636 | Whapham, Dale (1463) | Won 2-0 | +191382 |
| 6sealed | 524 | Vance, Amanda (1480) | Won 2-1 | +201402 |
| 7sealed | 398 | Verdegem, Joseph (1504) | Lost 0-2 | -161386 |
| top | average opponent: 1475record: 3-4 | new rating: 1386 | ||
| Grand Prix Charlotte 2016 (modern) | starting rating: 1459 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 274 | Bray, Clarence (1533) | Lost 1-2 | -161443 |
| 2modern | 900 | Hicks, Dylan (1481) | Lost 1-2 | -181425 |
| 3modern | 1005 | Delaveau, Frederic (1480) | Lost 1-2 | -171408 |
| 4modern | 924 | Lee, Mike (1496) | Lost 0-2 | -161392 |
| top | average opponent: 1497record: 0-4 | new rating: 1392 | ||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 430 | Wardlaw, Ben (1500) | Won 2-1 | +181518 |
| 2modern | 365 | Cato, John A (1518) | Lost 0-2 | -181500 |
| 3modern | 448 | Phillips, Erin (1486) | Won 2-0 | +181518 |
| 4modern | 453 | Tran, Dan (1507) | Won 2-1 | +181536 |
| 5modern | 260 | Bigford, Roland (1434) | Lost 0-2 | -201516 |
| 6modern | 383 | Orantes, Chris (1526) | Lost 1-2 | -181498 |
| 7modern | 418 | McCarl, Morgan (1345) | Lost 0-2 | -211477 |
| 8modern | 391 | Leech, Shea (1483) | Lost 0-2 | -181459 |
| top | average opponent: 1475record: 3-5 | new rating: 1459 | ||