Chudzik, John
Current rating: 1594
Record: 22-18
| Grand Prix Louisville 2017 (legacy) | starting rating: 1551 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 283 | Germany, Carl (1500) | Won 2-0 | +171568 |
| 2legacy | 393 | Blake, Amber (1393) | Won 2-1 | +141582 |
| 3legacy | 338 | Cox, Richard (1507) | Won 2-0 | +171599 |
| 4legacy | 451 | Wright, Andrew (1530) | Won 2-0 | +171616 |
| 5legacy | 343 | Birrell, Ian (1829) | Won 2-1 | +221638 |
| 6legacy | 292 | Chase, Robert (1584) | Lost 0-2 | -191619 |
| 7legacy | 410 | Showers, Christopher (1641) | Won 2-1 | +181637 |
| 8legacy | 304 | Friedman, Ben (2085) | Lost 0-2 | -101627 |
| 9legacy | 433 | Bernhardt, Wade (1466) | Lost 1-2 | -211606 |
| 10legacy | 1216 | Hatfield, Alix (1940) | Won 2-1 | +241630 |
| 11legacy | 1165 | Gallagher, Phillip (1639) | Lost 0-2 | -181612 |
| 12legacy | 1144 | Llanes, Anthony (1600) | Won 2-1 | +181630 |
| 13legacy | 1088 | Baker, Christopher (1552) | Lost 0-2 | -201610 |
| 14legacy | 1120 | Hefner, Jessy (1687) | Lost 0-2 | -161594 |
| top | average opponent: 1640record: 8-6 | new rating: 1594 | ||
| Grand Prix Columbus 2016 (legacy) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 530 | Allinson, Chris (1544) | Lost 0-2 | -181492 |
| 2legacy | 505 | Borodawka, Benjamin (1430) | Won 2-0 | +171509 |
| 3legacy | 625 | Eglitis, Ryan (1437) | Won 2-1 | +171526 |
| 4legacy | 301 | Judge, Tom (1565) | Won 2-1 | +181544 |
| 5legacy | 267 | Thies, Luke (1470) | Won 2-1 | +171561 |
| 6legacy | 201 | Uebbing, Randall (1507) | Won 2-1 | +171578 |
| 7legacy | 72 | Kasprzak, Aaron (1585) | Lost 1-2 | -181560 |
| 8legacy | 159 | Goddard, Maxwell (1786) | Lost 1-2 | -141546 |
| 9legacy | 319 | Randev, Rajiv (1493) | Won 2-0 | +171563 |
| 10legacy | 266 | Roemer, Ross (1692) | Lost 0-2 | -151548 |
| 11legacy | 199 | Mapson, Michael (1515) | Won 2-1 | +171565 |
| 12legacy | 208 | Higginbottom, James (1678) | Won 2-1 | +201585 |
| 13legacy | 162 | Colegrove, Bobby (1538) | Lost 0-2 | -191566 |
| 14legacy | 145 | Llodra, Juan Pablo (1693) | Lost 0-2 | -151551 |
| top | average opponent: 1567record: 8-6 | new rating: 1551 | ||
| Grand Prix Columbus 2012 (modern) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 184 | Martin, Mason (1500) | Won 2-0 | +181516 |
| 2modern | 124 | Wochinski, Derek (1453) | Won 2-1 | +171533 |
| 3modern | 8 | Andersen, Christoffer (1829) | Lost 1-2 | -131520 |
| 4modern | 273 | Beauchamp, Adam (1528) | Won 2-0 | +181538 |
| 5modern | 98 | Shenhar, Shahar (2013) | Lost 0-2 | -101528 |
| 6modern | 281 | Hill, Zachery (1491) | Lost 0-2 | -181510 |
| top | average opponent: 1636record: 3-3 | new rating: 1510 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 105 | Peterson, Alex (1500) | Won 2-0 | +181518 |
| 2legacy | 39 | Hamid, Omar (1487) | Lost 0-2 | -191499 |
| 3legacy | 183 | Cutler, Tim (1368) | Won 2-1 | +161515 |
| 4legacy | 168 | Talley, Ty (1518) | Lost 0-2 | -181497 |
| 5legacy | 214 | Mascioli, Chris (1538) | Won 2-1 | +191516 |
| 6legacy | 169 | DiSalvo, Joseph (1519) | Lost 0-2 | -181498 |
| top | average opponent: 1488record: 3-3 | new rating: 1498 | ||