Karlin, Isadore
Current rating: 1548
Record: 5-3
| Grand Prix Portland 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 106 | Blood, Zane (1487) | Won 2-1 | +181518 |
| 2modern | 320 | Juan, William (1638) | Won 2-0 | +201538 |
| 3modern | 350 | Skallerup, Josiah (1673) | Lost 0-2 | -161522 |
| 4modern | 318 | Barlog, David (1594) | Lost 0-2 | -161506 |
| 5modern | 622 | Ellis, Jarrod (1655) | Won 2-0 | +201526 |
| 6modern | 281 | Paesani, David (1502) | Won 2-1 | +181544 |
| 7modern | 213 | Padgett, Wade (1546) | Won 2-0 | +181562 |
| 8modern | 127 | Yang, Xiao Yu (Roy) (1814) | Lost 0-2 | -141548 |
| average opponent: 1614record: 5-3 | new rating: 1548 | |||