Isaac, Nathanael
Current rating: 1509
Record: 3-3
| Grand Prix Sacramento 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 287 | Herr, Paul (1914) | Won 2-1 | +251525 |
| 2sealed | 151 | Moore, Michael (1390) | Won 2-0 | +161541 |
| 3sealed | 23 | Gaieski, Ethan (1775) | Lost 0-2 | -141527 |
| 4sealed | 256 | Milechman, Daniel (1572) | Lost 1-2 | -171510 |
| 5sealed | 341 | Sonico, Neil (1460) | Won 2-0 | +171527 |
| 6sealed | 282 | Samuel, Tim (1532) | Lost 0-2 | -181509 |
| average opponent: 1607record: 3-3 | new rating: 1509 | |||