Chromulak, Jeffrey
Current rating: 1578
Record: 19-14-3
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1644 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 560 | Griswold, Jonathan (1500) | Draw 1-1 | -21642 |
| 2modern | 643 | Garcia-Renart, Evan (1499) | Lost 0-2 | -211621 |
| 3modern | 1095 | Caglioti, Marco (1480) | Lost 0-2 | -201601 |
| 4modern | 1193 | Armstrong, Jirhon (1361) | Lost 1-2 | -231578 |
| top | average opponent: 1460record: 0-3-1 | new rating: 1578 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 1440 | Auriemma, Josh (1482) | Won 2-0 | +171543 |
| 2legacy | 1587 | England, Brent (1520) | Won 2-0 | +181561 |
| 3legacy | 1412 | Davis, Andrew (1522) | Won 2-0 | +171578 |
| 4legacy | 1429 | Gaynor, Jonah (1507) | Won 2-0 | +171595 |
| 5legacy | 1443 | Davis, Scott (1699) | Won 2-0 | +201615 |
| 6legacy | 1420 | Miller, John (1497) | Won 2-1 | +161631 |
| 7legacy | 1405 | Frady, Keane (1498) | Won 2-0 | +151646 |
| 8legacy | 1405 | Stanton, Mark (1704) | Won 2-0 | +191665 |
| 9legacy | 1402 | Hess, Nick (1636) | Lost 0-2 | -181647 |
| 10legacy | 32 | Duke, Reid (2024) | Won 2-0 | +241671 |
| 11legacy | 20 | Black, Samuel (1956) | Won 2-1 | +231694 |
| 12legacy | 8 | Schonegger, Philipp (1832) | Lost 0-2 | -151679 |
| 13legacy | 14 | Akpinar, Tim (1881) | Draw 1-1 | +31682 |
| 14legacy | 29 | Wilson, Tim S (1668) | Lost 0-2 | -181664 |
| 15legacy | 56 | Rudolph, Jeremiah (1569) | Lost 0-2 | -201644 |
| top | average opponent: 1666record: 10-4-1 | new rating: 1644 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 145 | Lewis, David (1491) | Lost 0-2 | -181493 |
| 3modern | 478 | Harper, Christopher (1500) | Won 2-1 | +181511 |
| 4modern | 341 | Nadolny, Brian (1543) | Lost 0-2 | -171494 |
| 5modern | 350 | McDougall, Adam (1502) | Won 2-0 | +181512 |
| 6modern | 411 | Stewart, Keith (1503) | Lost 0-2 | -181494 |
| 7modern | 364 | Newyear, Keith (1408) | Won 2-1 | +161510 |
| 8modern | 250 | Fuller, Jonathan (1390) | Draw 1-1 | -21508 |
| 9modern | 205 | Ciufo, Benjamin (1517) | Won 2-0 | +181526 |
| top | average opponent: 1482record: 4-3-1 | new rating: 1526 | ||
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 154 | Lynn, Leandra (1384) | Won 2-1 | +161516 |
| 2legacy | 116 | Springer, Harry (1413) | Lost 0-2 | -201496 |
| 3legacy | 441 | LaFave, Christopher (1500) | Won 2-1 | +181514 |
| 4legacy | 498 | Lease, Lukas (1516) | Lost 0-2 | -181496 |
| 5legacy | 628 | Sacco, Daniel (1404) | Lost 1-2 | -201476 |
| 6legacy | 211 | Grogan, Eric (1456) | Won 2-0 | +181494 |
| 7legacy | 418 | Benning, Mark (1441) | Lost 1-2 | -191475 |
| 8legacy | 417 | Anderson, Travis (1496) | Won 2-0 | +191494 |
| 9legacy | 322 | Hickey, Jared (1484) | Won 2-0 | +171511 |
| top | average opponent: 1455record: 5-4 | new rating: 1511 | ||