Spencer, Jeffrey
Current rating: 1523
| Grand Prix Cleveland 2019 (RNA limited) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 201 | Rees, Jimm (1520) | Lost 0-2 | -181526 |
| 2sealed | 344 | MacMurdo, Walker (1768) | Lost 1-2 | -141512 |
| 3sealed | 557 | Motzer, Zeke (1468) | Won 2-1 | +171529 |
| 4sealed | 523 | Aali, Shah (1511) | Won 2-1 | +181547 |
| 5sealed | 370 | Falcioni, Matthew (1910) | Lost 0-2 | -121535 |
| 6sealed | 390 | Maginnis, Peter (1827) | Lost 0-2 | -121523 |
| top | average opponent: 1667record: 2-4 | new rating: 1523 | ||
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 595 | Dennis, Justin (1500) | Lost 1-2 | -191499 |
| 2standard | 783 | Griffin, Eric (1648) | Lost 0-2 | -151484 |
| 3standard | 986 | Stork, Devin (1463) | Won 2-1 | +181502 |
| 4standard | 902 | Deutsch, John (1482) | Won 2-0 | +171519 |
| 5standard | 774 | Peck, Donnie (1767) | Won 2-0 | +231542 |
| 6standard | 643 | Olsen, James (1453) | Won 2-1 | +161558 |
| 7standard | 671 | Robdrup, Andy (1791) | Lost 0-2 | -141544 |
| top | average opponent: 1586record: 4-3 | new rating: 1544 | ||
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 51 | Adams, Ben (1500) | Lost 1-2 | -181482 |
| 2sealed | 501 | Gould, Matthew (1482) | Won 2-1 | +181500 |
| 3sealed | 297 | Grammes, Billy (1500) | Won 2-1 | +181518 |
| 4sealed | 451 | cuteri, william (1517) | Won 2-1 | +181536 |
| 5sealed | 282 | Augustyn, Patrick (1447) | Won 2-0 | +161552 |
| 6sealed | 139 | Wyzykowski, Edward (1557) | Lost 0-2 | -181534 |
| 7sealed | 165 | Li, Kai (1513) | Lost 0-2 | -181516 |
| 8sealed | 252 | Tundo, Vincent (1624) | Won 2-0 | +201536 |
| 9sealed | 170 | Watts, Russell (1517) | Lost 0-2 | -181518 |
| top | average opponent: 1518record: 5-4 | new rating: 1518 | ||