Day, Joseph F
Current rating: 1496
Record: 9-9
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 738 | Pendock, David (1500) | Lost 1-2 | -181499 |
| 2standard | 863 | Pignatelli, Spenser (1482) | Lost 0-2 | -191480 |
| 3standard | 581 | Alejos, Miguel (1464) | Won 2-0 | +181498 |
| 4standard | 946 | Dudson, Jeff (1482) | Lost 1-2 | -181480 |
| 5standard | 933 | Hudson, Nathan (1446) | Won 2-0 | +171497 |
| 6standard | 775 | Hostetter, Andrew (1483) | Won 2-1 | +181515 |
| 7standard | 753 | Johnson, Dan (1472) | Lost 1-2 | -191496 |
| 8standard | 701 | Sager, Jeremy (1485) | Won 2-0 | +181514 |
| 9standard | 651 | Pope, Tyke (1518) | Lost 1-2 | -181496 |
| average opponent: 1481record: 4-5 | new rating: 1496 | |||
| Grand Prix Anaheim 2012 (Innistrad block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 208 | Bailey, Chris (1517) | Lost 0-2 | -181482 |
| 2block | 299 | DeMaio, Rudy (1482) | Won 2-0 | +181500 |
| 3block | 337 | Carpinelli, Fabiano (1480) | Won 2-0 | +181518 |
| 4block | 185 | Munoz, Santiago (1525) | Won 2-1 | +181536 |
| 5block | 202 | Rader, Matt (1504) | Won 2-1 | +171553 |
| 6block | 58 | Freitas, Kevin (1558) | Lost 1-2 | -171536 |
| 7block | 207 | McAtee, Brian (1538) | Won 2-1 | +181554 |
| 8block | 70 | Herbelin, Andrew (1565) | Lost 0-2 | -181536 |
| 9block | 131 | Greenidge, Jamal (1491) | Lost 1-2 | -191517 |
| average opponent: 1518record: 5-4 | new rating: 1517 | |||