Spivak, Jacob
Current rating: 1464
Record: 4-6-1
| Grand Prix Los Angeles 2019 (modern) | starting rating: 1458 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 242 | Agustin, Glenn (1519) | Won 2-0 | +191477 |
| 2modern | 114 | Cruz, Francis (1560) | Won 2-0 | +201497 |
| 3modern | 105 | Opferman, Anthony (1604) | Lost 1-2 | -161481 |
| 4modern | 428 | Gonzalez, Alex (1516) | Lost 0-2 | -181463 |
| 5modern | 568 | Vetter, Christopher (1494) | Won 2-1 | +191482 |
| 6modern | 459 | Adams, Brahnson (1489) | Lost 1-2 | -181464 |
| average opponent: 1530record: 3-3 | new rating: 1464 | |||
| Grand Prix Los Angeles 2018 (M19 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 128 | Bolich, Ty (1432) | Draw 1-1 | -11499 |
| 2standard | 245 | Betts, Jeremy (1415) | Lost 1-2 | -201479 |
| 3standard | 438 | Gallinaro, Loris (1297) | Lost 1-2 | -211458 |
| 4standard | 478 | Mollakuqe, Edin (1463) | Won 2-0 | +181476 |
| 5standard | 414 | Savoie, Chris (1486) | Lost 1-2 | -181458 |
| average opponent: 1419record: 1-3-1 | new rating: 1458 | |||