Koenig, Ian
Current rating: 1525
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 348 | Van Bibber-Orr, Edwin (1481) | Won 2-1 | +181488 |
| 2sealed | 124 | Brown, Paul (1606) | Lost 0-0 | -161472 |
| 3sealed | 404 | Mabie, Craig (1736) | Won 2-1 | +231495 |
| 4sealed | 253 | Moore, Andrew (1650) | Won 2-1 | +211516 |
| 5sealed | 206 | Johnson, Colin (1573) | Won 2-1 | +191535 |
| 6sealed | 154 | Haas, William (1675) | Won 2-1 | +201555 |
| 7sealed | 81 | Fyfe, Max (1911) | Lost 0-2 | -111544 |
| 8sealed | 148 | Plamondon, Brandon (1505) | Lost 1-2 | -191525 |
| top | average opponent: 1642record: 5-3 | new rating: 1525 | ||
| Grand Prix Montreal 2018 (GRN limited) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 36 | Lamoure, Carl (1560) | Lost 0-2 | -171468 |
| 2sealed | 402 | Lacasse, Sylvain (1399) | Won 2-1 | +171485 |
| 3sealed | 345 | Sullivan, William (1534) | Lost 0-2 | -171468 |
| 4sealed | 397 | Culligan, Michael (1498) | Won 2-1 | +181486 |
| 5sealed | 298 | Whalen, Bob (1576) | Lost 0-2 | -161470 |
| top | average opponent: 1513record: 2-3 | new rating: 1470 | ||
| Grand Prix Providence 2018 (M19 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 99 | Boyer, James (1500) | Won 2-0 | +181518 |
| 2standard | 28 | Clementz, Zachary (1393) | Lost 1-2 | -201498 |
| 3standard | 297 | Schwagenscheidt, Julius Paul (1505) | Won 2-1 | +181516 |
| 4standard | 189 | Siembor, Michael (1592) | Lost 0-2 | -171499 |
| 5standard | 224 | Gaynor, Jonah (1697) | Lost 1-2 | -141485 |
| top | average opponent: 1538record: 2-3 | new rating: 1485 | ||