Koolen, Adrian
Current rating: 1493
Record: 14-15-1
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 86 | Fortin, Joe L (1499) | Won 2-1 | +201451 |
| 2sealed | 589 | Pigeon, Adam (1475) | Won 2-1 | +181469 |
| 3sealed | 124 | Evans, Lyra (1500) | Won 2-0 | +191488 |
| 4sealed | 202 | Linton, Richard (1518) | Won 2-1 | +181506 |
| 5sealed | 86 | Sheu, Curtis (1493) | Lost 0-2 | -181488 |
| 6sealed | 189 | Barnello, Adam (1710) | Lost 1-2 | -141474 |
| 7sealed | 261 | Singleton, John (1463) | Won 2-1 | +181492 |
| 8sealed | 169 | Xing, Paul (1472) | Won 2-0 | +171509 |
| 9sealed | 83 | Kor, Frank (1573) | Lost 0-2 | -161493 |
| top | average opponent: 1523record: 6-3 | new rating: 1493 | ||
| Grand Prix Detroit 2013 (modern) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 277 | Lai, Conan (1500) | Won 2-0 | +191503 |
| 2modern | 53 | Stachyra, Krzysztof (1500) | Lost 0-0 | -181485 |
| 3modern | 456 | TerHaar, Micah (1512) | Lost 0-2 | -181467 |
| 4modern | 604 | Hammond, Bradley (1516) | Lost 1-2 | -171450 |
| 5modern | 626 | Albert, Jacob (1416) | Lost 1-2 | -191431 |
| 6modern | 554 | Inocencio, Kaelen (1426) | Won 2-1 | +181449 |
| 7modern | 439 | Jones, Dustin (1462) | Lost 0-0 | -181431 |
| 8modern | 376 | Temples, Dustin (1444) | Lost 1-2 | -171414 |
| 9modern | 325 | Falk, Andy (1401) | Won 2-1 | +171431 |
| top | average opponent: 1464record: 3-6 | new rating: 1431 | ||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 500 | Greenbank, Shane A (1500) | Won 2-0 | +181501 |
| 2sealed | 447 | Brown, Cody (1518) | Lost 1-2 | -181483 |
| 3sealed | 558 | Downing, Ian (1500) | Won 2-0 | +191502 |
| 4sealed | 473 | Deslandes, Maxime (1518) | Won 2-1 | +181520 |
| 5sealed | 445 | Lebel, Maxime (1541) | Lost 0-2 | -181502 |
| 6sealed | 478 | Simms, Matthew (1507) | Lost 0-2 | -181484 |
| top | average opponent: 1514record: 3-3 | new rating: 1484 | ||
| Grand Prix Toronto 2006 (DIS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 125 | Kuntz, James (1500) | Draw 1-1 | 01500 |
| 2sealed | 123 | Kanellis, David (1498) | Lost 0-2 | -181482 |
| 3sealed | 184 | Beverley, Robert (1624) | Lost 0-2 | -151467 |
| 4sealed | 206 | Macdonald, Rick J (1480) | Won 2-1 | +181485 |
| 5sealed | 164 | Martineau, Robert (1482) | Won 2-1 | +181503 |
| 6sealed | 122 | Foster, Stephen (1385) | Lost 0-2 | -201483 |
| top | average opponent: 1495record: 2-3-1 | new rating: 1483 | ||