Valko, Johnny
Current rating: 1500
Record: 3-3
| Grand Prix Portland 2019 (ELD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 52 | Philbrook, Christopher (1461) | Won 2-0 | +171517 |
| 2standard | 47 | Schlesinger, Bradley (1518) | Won 2-1 | +181535 |
| 3standard | 34 | Paykar, Ashkan (1651) | Lost 0-0 | -161519 |
| 4standard | 96 | Levi, Joshua (1434) | Lost 1-2 | -191500 |
| 5standard | 141 | Booth, Jackson (1472) | Won 2-0 | +171517 |
| 6standard | 142 | Zanutto, Antonio (1540) | Lost 0-2 | -171500 |
| average opponent: 1513record: 3-3 | new rating: 1500 | |||