Winniman, Jacob
Current rating: 1425
Record: 2-6
| Grand Prix Hartford 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 522 | Hayashi, Fumitaka (1481) | Lost 0-2 | -181482 |
| 2modern | 438 | Gimmi, Alexander (1431) | Won 2-1 | +171499 |
| 3modern | 603 | Walker, Jeff (1465) | Lost 1-2 | -191480 |
| 4modern | 766 | Rivera, Julio (1379) | Lost 1-2 | -201460 |
| 5modern | 743 | Shenassa, Stephen (1463) | Won 2-1 | +181478 |
| 6modern | 557 | Flowers, John (1482) | Lost 0-2 | -181460 |
| 7modern | 553 | Unger, Brandon (1469) | Lost 1-2 | -171443 |
| 8modern | 459 | Rapp, Carver (1447) | Lost 0-2 | -181425 |
| average opponent: 1452record: 2-6 | new rating: 1425 | |||