Feldman, Jacob
Current rating: 1434
| Grand Prix Atlanta 2019 (legacy) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 164 | Gabbard, Jeremy (1500) | Won 2-0 | +181487 |
| 2legacy | 146 | Logan, Anthony (1500) | Lost 1-2 | -171470 |
| 3legacy | 352 | Liu, Sean (1479) | Lost 0-2 | -181452 |
| 4legacy | 366 | Gutierrez, David (1442) | Lost 1-2 | -181434 |
| top | average opponent: 1480record: 1-3 | new rating: 1434 | ||
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 69 | Wentz, Christopher (1463) | Lost 0-2 | -191468 |
| 2modern | 366 | Ford, Taylor (1482) | Won 2-0 | +191487 |
| 3modern | 294 | Carr, Adrian (1528) | Lost 1-2 | -181469 |
| 4modern | 323 | Gocio, Chris (1481) | Won 2-0 | +181487 |
| 5modern | 251 | Hale, Kenny (1455) | Lost 1-2 | -181469 |
| top | average opponent: 1482record: 2-3 | new rating: 1469 | ||
| Grand Prix Atlanta 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 215 | Stafford, Richard (1500) | Won 2-1 | +181518 |
| 2modern | 295 | Robinson, Shade (1516) | Won 2-1 | +181536 |
| 3modern | 168 | Malone, Michael (1779) | Lost 1-2 | -141522 |
| 4modern | 248 | Bennett, Chase (1489) | Lost 0-2 | -181504 |
| 5modern | 492 | Ta, Braden (1557) | Lost 0-2 | -171487 |
| top | average opponent: 1568record: 2-3 | new rating: 1487 | ||