Jones, John C
Current rating: 1531
Record: 13-12
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 8 | Rice, Eugene (1500) | Won 2-0 | +191489 |
| 2extended | 1 | Monahan, Brooks (1518) | Won 2-1 | +181507 |
| 3extended | 138 | Coggan, Brett (1613) | Lost 0-2 | -161491 |
| 4extended | 133 | Jarman, Brad (1407) | Won 2-1 | +171508 |
| 5extended | 93 | Dobbertin, Ty (1562) | Lost 0-2 | -171491 |
| 6extended | 190 | Li, Phillip (1562) | Lost 0-2 | -171474 |
| 7extended | 247 | Bongiovanni, Mauro (1589) | Won 2-0 | +201494 |
| 8extended | 169 | Matteson, Geoff J (1521) | Won 2-0 | +181512 |
| 9extended | 135 | Kailing, Michael (1536) | Won 2-0 | +191531 |
| top | average opponent: 1534record: 6-3 | new rating: 1531 | ||
| Grand Prix New Jersey 2006 (TSP limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 83 | Stephens, John (1485) | Lost 1-2 | -181488 |
| 2sealed | 261 | Jones, Mike A (1482) | Lost 1-2 | -181470 |
| 3sealed | 358 | Nace, Jon A (1465) | Won 2-0 | +181488 |
| 4sealed | 365 | Rabovsky, Jeffrey W (1511) | Lost 0-2 | -181470 |
| top | average opponent: 1485record: 1-3 | new rating: 1470 | ||
| Grand Prix Philadelphia 2005 (legacy) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 57 | Ryttenberg, Harry (1498) | Lost 0-2 | -171448 |
| 2legacy | 170 | Berger, Andrew (1482) | Lost 0-2 | -181430 |
| 3legacy | 191 | Stanton, Andrew (1464) | Won 2-0 | +191449 |
| 4legacy | 207 | Gildea, Robert (1518) | Won 2-0 | +191468 |
| 5legacy | 156 | Dupuis, Eric (1483) | Lost 0-2 | -181450 |
| 6legacy | 156 | Lampman, James (1483) | Won 2-0 | +191469 |
| 7legacy | 107 | Araujo, Alexander A (1509) | Won 2-0 | +191488 |
| 8legacy | 77 | Berry, Craig (1518) | Won 2-1 | +181506 |
| top | average opponent: 1494record: 5-3 | new rating: 1506 | ||
| Grand Prix Philadelphia 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 176 | Eastman, David (1558) | Lost 1-2 | -171483 |
| 2sealed | 189 | Alipo, James (1481) | Lost 1-2 | -181465 |
| 3sealed | 228 | White, Tom (1463) | Won 2-0 | +181483 |
| 4sealed | 220 | Olsen, Erik (1483) | Lost 0-2 | -181465 |
| top | average opponent: 1496record: 1-3 | new rating: 1465 | ||