Klein, Isaac
Current rating: 1553
Record: 8-5
| Grand Prix Portland 2019 (ELD standard) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 86 | Townson, Stephen (1500) | Won 2-0 | +171569 |
| 2standard | 9 | Robinson, Aaron (1582) | Won 2-0 | +181587 |
| 3standard | 97 | Stevenson, James (1756) | Lost 0-0 | -151572 |
| 4standard | 88 | Sprunger, Brock (1471) | Lost 0-2 | -191553 |
| average opponent: 1577record: 2-2 | new rating: 1553 | |||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 773 | Vogel, Xavier (1500) | Won 2-0 | +181518 |
| 2modern | 67 | Bernett, Evan (1510) | Lost 0-2 | -181500 |
| 3modern | 969 | Peterson, Brian (1476) | Won 2-1 | +171517 |
| 4modern | 569 | Izsak, Yoel (1667) | Won 2-0 | +211538 |
| 5modern | 375 | Sudendorf, Vanessa (1481) | Won 2-0 | +171555 |
| 6modern | 319 | Ascott, Ryan (1426) | Lost 1-2 | -201535 |
| 7modern | 452 | Otenti, Nicholas (1539) | Lost 0-2 | -181517 |
| 8modern | 429 | Czinder, Chris (1465) | Won 2-0 | +171534 |
| 9modern | 357 | Osmanbasic, Ednan (1546) | Won 2-0 | +181552 |
| average opponent: 1512record: 6-3 | new rating: 1552 | |||