Prentiss, Harold
Current rating: 1506
Record: 3-3
| Grand Prix Hartford 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 548 | Siroonian, Chris (1444) | Won 2-0 | +171517 |
| 2modern | 367 | Smith, Philip (1489) | Lost 0-2 | -191498 |
| 3modern | 445 | Azuelos, Charles (1484) | Won 2-1 | +181516 |
| 4modern | 225 | Szylman, Dariusz (1718) | Won 2-1 | +221538 |
| 5modern | 105 | Wong, Daniel (1779) | Lost 0-2 | -141524 |
| 6modern | 412 | Hargrove, Derek (1520) | Lost 0-2 | -181506 |
| average opponent: 1572record: 3-3 | new rating: 1506 | |||