Boyko, Ivan
Current rating: 1475
Record: 14-15-2
| Grand Prix Toronto 2018 (modern) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 440 | Araujo, Shaun (1438) | Lost 1-2 | -191493 |
| 2modern | 643 | Da Silva, Alex (1481) | Lost 1-2 | -181475 |
| 3modern | 719 | Ford, Jack (1464) | Won 2-0 | +181493 |
| 4modern | 572 | Brunner, Robert (1517) | Lost 0-2 | -181475 |
| top | average opponent: 1475record: 1-3 | new rating: 1475 | ||
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 269 | Machan, Stephen (1449) | Draw 1-1 | -11514 |
| 2standard | 376 | Goetz, Anthony (1484) | Lost 1-2 | -191495 |
| 3standard | 654 | Belanger, Brennen (1482) | Won 2-1 | +181513 |
| 4standard | 492 | Hull, Danielle (1499) | Won 2-1 | +181531 |
| 5standard | 345 | Downton, Brad (1517) | Lost 1-2 | -191512 |
| top | average opponent: 1486record: 2-2-1 | new rating: 1512 | ||
| Grand Prix Ottawa 2014 (KTK limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 176 | Da Silva, Edgar (1445) | Won 2-1 | +171538 |
| 2sealed | 272 | Yassa, Mike (1537) | Lost 1-2 | -181520 |
| 3sealed | 427 | Leroux, Francois (1464) | Won 2-0 | +171537 |
| 4sealed | 295 | Ma, Kent (1518) | Won 2-0 | +171554 |
| 5sealed | 205 | Belanger, Patrick (1453) | Won 2-0 | +161570 |
| 6sealed | 47 | Melanson, Cory (1544) | Lost 1-2 | -181552 |
| 7sealed | 123 | Pagano, Matthew (1507) | Lost 1-2 | -191533 |
| 8sealed | 212 | Watson, Thomas (1517) | Lost 0-2 | -181515 |
| top | average opponent: 1498record: 4-4 | new rating: 1515 | ||
| Grand Prix Montreal 2014 (BNG limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 524 | Lee, Jeffrey (1491) | Won 2-0 | +181501 |
| 2sealed | 92 | Boyd, Sam (1518) | Lost 1-2 | -181483 |
| 3sealed | 492 | Marsh, Jordan (1529) | Won 2-0 | +191502 |
| 4sealed | 342 | Fortin, Alexandre 5167 (1517) | Lost 1-2 | -181484 |
| 5sealed | 391 | Pasch, Korey (1447) | Draw 1-1 | 01484 |
| 6sealed | 410 | Pelletier, Jared (1507) | Won 2-1 | +181502 |
| 7sealed | 295 | Potvin, Guillaume (1577) | Won 2-0 | +191521 |
| 8sealed | 171 | Darlow, Kyle (1533) | Won 2-0 | +191540 |
| 9sealed | 136 | Thiara, Devinder (1514) | Lost 0-2 | -191521 |
| top | average opponent: 1515record: 5-3-1 | new rating: 1521 | ||
| Grand Prix Toronto 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 200 | Morelli, Mike (1575) | Lost 0-2 | -171483 |
| 2modern | 402 | Ramkay, Steven (1445) | Won 2-0 | +181501 |
| 3modern | 358 | Choi, Francis (1500) | Lost 1-2 | -181483 |
| 4modern | 446 | Wells, James R (1482) | Won 2-0 | +181501 |
| 5modern | 311 | Hounsell, Marty (1500) | Lost 1-2 | -181483 |
| top | average opponent: 1500record: 2-3 | new rating: 1483 | ||