Harrington, Corey
Current rating: 1541
Record: 16-16
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 748 | Karasek, Jerad (1519) | Lost 1-2 | -191506 |
| 3standard | 729 | Minchev, Zdravko (1446) | Won 2-0 | +171523 |
| 4standard | 694 | Smith, Shawn (1518) | Won 2-1 | +181541 |
| 5standard | 666 | Olesberg, Michael (1535) | Won 2-0 | +181559 |
| 6standard | 480 | Kahn, Max (1537) | Won 2-1 | +181577 |
| 7standard | 540 | Caspary, Ben (1574) | Lost 0-2 | -181559 |
| 8standard | 563 | Milham, Robert (1556) | Lost 0-2 | -181541 |
| top | average opponent: 1527record: 4-3 | new rating: 1541 | ||
| Grand Prix Indianapolis 2013 (RTR limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 89 | Chang, Morgan (1735) | Won 2-1 | +231505 |
| 5sealed | 12 | Jensen, William (1808) | Won 2-0 | +231528 |
| 6sealed | 24 | Majlaton, Alex (2107) | Won 2-1 | +281556 |
| 7sealed | 13 | DiDonato, Joseph H (1673) | Lost 0-2 | -161540 |
| 8sealed | 223 | Craddock, William (1961) | Lost 0-2 | -111529 |
| 9sealed | 81 | Damm, Cody (1635) | Won 2-0 | +201549 |
| 10draft | 5 | Draper, Dylan (1615) | Lost 0-2 | -171532 |
| 11draft | 9 | Sidhu, Jesse (1531) | Won 2-1 | +181550 |
| 12draft | 39 | Makino, Bernie (1795) | Lost 0-2 | -131537 |
| 13draft | 53 | Costa, Matthew (1775) | Won 2-0 | +221559 |
| 14draft | 25 | Vorva, Shane (1582) | Lost 1-2 | -181541 |
| 15draft | 41 | Lambert, Doug (1616) | Lost 0-2 | -161525 |
| top | average opponent: 1736record: 6-6 | new rating: 1525 | ||
| Grand Prix Chicago 2012 (modern) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 116 | Patterson, AJ (1450) | Won 2-0 | +161537 |
| 3modern | 394 | Metzger, Steven (1447) | Lost 1-2 | -191518 |
| 4modern | 307 | Delduca, Alex (1493) | Lost 1-2 | -191499 |
| 5modern | 282 | Whitton, Taylor (1563) | Lost 1-2 | -171482 |
| top | average opponent: 1488record: 1-3 | new rating: 1482 | ||
| Grand Prix Minneapolis 2012 (AVR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 102 | Xiong, Joshua (1440) | Won 2-1 | +171517 |
| 2standard | 126 | Mackiewicz, Stefan R (1518) | Won 2-0 | +181535 |
| 3standard | 134 | Duelfer, Matthew (1510) | Lost 1-2 | -191516 |
| 4standard | 163 | Yang, Second (1518) | Lost 0-2 | -171499 |
| 5standard | 324 | Toth, Joseph (1498) | Won 2-0 | +171516 |
| 6standard | 247 | Whelan, Bennett M (1518) | Won 2-1 | +191535 |
| 7standard | 134 | Ping, Ryan (1536) | Won 2-0 | +181553 |
| 8standard | 146 | Grassman, Mike (1545) | Lost 1-2 | -191534 |
| 9standard | 162 | Beltz, James (1763) | Lost 1-2 | -131521 |
| top | average opponent: 1538record: 5-4 | new rating: 1521 | ||