Hardin, John
Current rating: 1395
Record: 4-11-2
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1422 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 420 | Olsen, Ean (1464) | Lost 1-2 | -171405 |
| 2sealed | 511 | Kizuka, Jeremy (1324) | Lost 1-2 | -201385 |
| 3sealed | 672 | Benner, Jason (1449) | Lost 0-2 | -161369 |
| 4sealed | 744 | Galperin, David (1668) | Won 2-0 | +231392 |
| 5sealed | 682 | Bravo, Jose (1487) | Won 2-0 | +201412 |
| 6sealed | 516 | McNeill, Kristopher (1499) | Lost 0-2 | -171395 |
| top | average opponent: 1482record: 2-4 | new rating: 1395 | ||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 279 | Claar, Ryan E (1500) | Won 2-0 | +201448 |
| 2modern | 313 | Cooper, Morgan (1484) | Won 2-0 | +181466 |
| 3modern | 286 | Hwang, Eugene (2001) | Lost 1-2 | -91457 |
| 4modern | 444 | Gallot, Keith (1450) | Lost 1-2 | -181439 |
| 5modern | 504 | Bayog, Francis (1498) | Lost 0-1 | -171422 |
| top | average opponent: 1586record: 2-3 | new rating: 1422 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 482 | Dang, Fumin (1474) | Lost 0-2 | -171446 |
| 2modern | 587 | McKay, Richard (1485) | Lost 1-2 | -181428 |
| top | average opponent: 1480record: 0-2 | new rating: 1428 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 9 | Boyer, Billy (1446) | Draw 1-1 | -11499 |
| 2sealed | 212 | Massicotte, Miles (1500) | Lost 0-2 | -181481 |
| 3sealed | 292 | Peryea, Trevor (1485) | Lost 0-2 | -181463 |
| 4sealed | 321 | Drummond, Anthony V (1482) | Draw 1-1 | 01463 |
| top | average opponent: 1478record: 0-2-2 | new rating: 1463 | ||