Klassen, Barrett
Current rating: 1469
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 761 | Walter, Andy (1517) | Draw 1-1 | +11466 |
| 2standard | 753 | Kemmerly, Ben (1500) | Won 2-1 | +181484 |
| 3standard | 702 | Hill, Chris (1519) | Won 2-0 | +191503 |
| 4standard | 624 | Wisner, Zachary (1552) | Lost 1-2 | -171486 |
| 5standard | 719 | White, Michael (1532) | Lost 1-2 | -171469 |
| top | average opponent: 1524record: 2-2-1 | new rating: 1469 | ||
| Grand Prix Chicago 2012 (modern) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 93 | Hausman, Fred (1500) | Lost 1-2 | -181465 |
| 2modern | 314 | Rutledge, Andy (1463) | Won 2-1 | +181483 |
| 3modern | 361 | Lark, Brian F (1455) | Won 2-1 | +181501 |
| 4modern | 215 | Douglass, Christopher (1521) | Lost 0-2 | -181483 |
| 5modern | 381 | Parker, Alex (1467) | Lost 0-2 | -181465 |
| top | average opponent: 1481record: 2-3 | new rating: 1465 | ||
| Grand Prix Minneapolis 2012 (AVR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 28 | Hartig, Zach (1500) | Won 2-0 | +181518 |
| 2standard | 133 | Schultz, Jerret (1526) | Lost 1-2 | -181500 |
| 3standard | 335 | Bosin, Jim (1499) | Lost 1-2 | -181482 |
| 4standard | 364 | McFarland, Thomas E (1533) | Won 2-0 | +191501 |
| 5standard | 277 | Jenks, Matt J (1502) | Lost 0-2 | -181483 |
| top | average opponent: 1512record: 2-3 | new rating: 1483 | ||