Tkatchenko, Yaroslav
Current rating: 1485
Record: 10-12
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 222 | Clarke, Collin (1573) | Lost 0-2 | -171497 |
| 3standard | 606 | Adams, David (1519) | Lost 0-2 | -171480 |
| 4standard | 569 | Wernigg, Eli (1481) | Won 2-0 | +181498 |
| 5standard | 392 | Ma, Yousi (1664) | Won 2-1 | +211519 |
| 6standard | 308 | Pierce, Chad (1486) | Won 2-0 | +171536 |
| 7standard | 220 | Thibeau, Markus (1686) | Lost 1-2 | -151521 |
| 8standard | 298 | McOmie, Grant (1521) | Lost 0-2 | -181503 |
| 9standard | 364 | Kowallis, Ketric (1503) | Lost 0-2 | -181485 |
| average opponent: 1554record: 3-5 | new rating: 1485 | |||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 346 | Pielow, Daniel (1518) | Won 2-0 | +181518 |
| 3standard | 165 | Lumague, Kyle (1537) | Won 2-1 | +191537 |
| 4standard | 33 | Li, Richard (1496) | Lost 0-2 | -191518 |
| 5standard | 279 | Oratz, Josh (1517) | Won 2-1 | +181536 |
| 6standard | 103 | Steuer, Nathan (1868) | Lost 1-2 | -121524 |
| 7standard | 145 | Swaja, Kyle (1542) | Lost 1-2 | -181506 |
| 8standard | 327 | Watkins, Dylan (1533) | Won 2-1 | +191525 |
| 9standard | 186 | Jones, Anders (1604) | Won 0-0 | +191544 |
| 10standard | 212 | Barnum, James (1504) | Won 2-1 | +171561 |
| 11standard | 96 | Frigon, Luke (1686) | Lost 1-2 | -151546 |
| 12standard | 124 | O'Leary, Sanchez (1690) | Lost 1-2 | -161530 |
| 13standard | 156 | Whites, Marc (1580) | Lost 1-2 | -171513 |
| 14standard | 147 | Dickinson, Jack (1530) | Won 2-1 | +181531 |
| 15standard | 120 | Nguyen, Edward (1566) | Lost 0-2 | -171514 |
| average opponent: 1584record: 7-7 | new rating: 1514 | |||