Kosidowski, John
Current rating: 1462
Record: 0-2-1
| Grand Prix Los Angeles 2018 (M19 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 292 | Avila, Anthony (1471) | Lost 0-2 | -191481 |
| 2standard | 280 | Chou, Eric (1378) | Draw 1-1 | -11480 |
| 3standard | 444 | Yokoyama, Dylan (1481) | Lost 1-2 | -181462 |
| average opponent: 1443record: 0-2-1 | new rating: 1462 | |||