Day, Jasper
Current rating: 1396
| Grand Prix New Jersey 2019 (RNA limited) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 139 | Tonelli, Tim (1476) | Lost 0-2 | -171410 |
| 2sealed | 405 | Van Brussel, Joe (1656) | Lost 1-2 | -141396 |
| 3sealed | 601 | Andrews, Charles (1339) | Won 2-0 | +171413 |
| 4sealed | 569 | Liguori, Salvatore (1468) | Lost 0-2 | -171396 |
| top | average opponent: 1485record: 1-3 | new rating: 1396 | ||
| Grand Prix Los Angeles 2016 (modern) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 7 | Martin-Bourne, Nicholas (1500) | Won 2-0 | +191463 |
| 2modern | 375 | Gurule, Kyle (1492) | Lost 0-2 | -181445 |
| 3modern | 762 | Riley, Neil (1431) | Lost 0-2 | -181427 |
| top | average opponent: 1474record: 1-2 | new rating: 1427 | ||
| Grand Prix Los Angeles 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 394 | Kudlick, Alex (1518) | Lost 0-2 | -181482 |
| 2standard | 461 | Rhoades, Evan (1334) | Lost 1-2 | -201462 |
| 3standard | 820 | Harwood, Dylan (1464) | Lost 0-2 | -181444 |
| top | average opponent: 1439record: 0-3 | new rating: 1444 | ||