Cox, David
Current rating: 1488
Record: 10-12-2
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 54 | Scheid, Daniel (1683) | Won 2-0 | +221476 |
| 2sealed | 370 | Bach, Austin (1747) | Draw 1-1 | +51481 |
| 3sealed | 572 | Stremel, John (1469) | Draw 1-1 | -11480 |
| 4sealed | 750 | Templeman, Ken (1458) | Won 2-0 | +181498 |
| 5sealed | 515 | Sibley, Corey (1496) | Won 2-0 | +181516 |
| 6sealed | 337 | Cloyd, Jeremy (1840) | Lost 0-2 | -121504 |
| 7sealed | 492 | Im, Hannah (1544) | Lost 0-2 | -181486 |
| 8sealed | 547 | Shih, Brian (1496) | Lost 1-2 | -171469 |
| 9sealed | 500 | Vanderhoof, Dustin (1553) | Won 2-1 | +191488 |
| top | average opponent: 1587record: 4-3-2 | new rating: 1488 | ||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 259 | Conard, Brad (1499) | Lost 0-2 | -171449 |
| 2sealed | 463 | Fellon, Adam (1481) | Lost 1-2 | -171432 |
| 3sealed | 448 | Mazak, Milan (1463) | Lost 1-2 | -181414 |
| 4sealed | 472 | Page, Chad (1446) | Lost 1-2 | -171397 |
| 5sealed | 402 | Denault-Reynolds, Michele K (1427) | Lost 0-2 | -181379 |
| 6sealed | 337 | Colborn, Joseph (1428) | Won 2-0 | +191398 |
| 7sealed | 268 | Schneider, Mark N (1427) | Won 2-0 | +191417 |
| 8sealed | 205 | Claus, Ryan (1446) | Won 2-0 | +181435 |
| 9sealed | 161 | Johnson, Jerome (1465) | Won 2-0 | +191454 |
| top | average opponent: 1454record: 4-5 | new rating: 1454 | ||
| Grand Prix Los Angeles 2002 (ONS rochester) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 122 | Mintz, David (1500) | Won 2-0 | +191483 |
| 2sealed | 107 | Dwyer, John (1590) | Lost 0-2 | -161467 |
| 3sealed | 138 | Pust, Jonathan (1415) | Won 2-0 | +171484 |
| 4sealed | 130 | Weber, Joe (1520) | Lost 0-2 | -181466 |
| top | average opponent: 1506record: 2-2 | new rating: 1466 | ||
| Grand Prix San Diego 1999 (MMQ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 60 | Stearns, Nicholas (1500) | Lost 0-0 | -181482 |
| 2sealed | 85 | Egoavil, Steve (1482) | Lost 0-0 | -181464 |
| top | average opponent: 1491record: 0-2 | new rating: 1464 | ||