Horan, Jacob
Current rating: 1466
Record: 2-4
| Grand Prix Columbus 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 38 | Adler, David (1500) | Won 2-1 | +181518 |
| 2modern | 66 | Harn, Robin (1518) | Lost 0-2 | -181500 |
| 3modern | 233 | Fox, Earl (1503) | Won 2-0 | +181518 |
| 4modern | 81 | Cusick, Brian (1647) | Lost 1-2 | -161502 |
| 5modern | 182 | Mansour, Ramy (1451) | Lost 0-2 | -191483 |
| 6modern | 196 | Gertz, James (1532) | Lost 1-2 | -171466 |
| average opponent: 1525record: 2-4 | new rating: 1466 | |||