Colum, Nathan
Current rating: 1533
Record: 8-6
| Grand Prix Minneapolis 2017 (HOU standard) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 39 | Bosch, Austin (1500) | Won 2-0 | +171570 |
| 2standard | 243 | Edwards, Mitchell (1713) | Lost 0-2 | -151555 |
| 3standard | 306 | Melby, Kristopher (1487) | Won 2-0 | +171572 |
| 4standard | 161 | Anderson, Michael (1475) | Lost 1-2 | -201552 |
| 5standard | 370 | Franzen, Logan (1489) | Lost 1-2 | -191533 |
| average opponent: 1533record: 2-3 | new rating: 1533 | |||
| Grand Prix Oklahoma City 2013 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 418 | Bergmann, Ryan J (1500) | Won 2-0 | +181518 |
| 2sealed | 166 | Mowrey, Austin (1477) | Lost 0-2 | -191499 |
| 3sealed | 433 | Dudley, Josh (1415) | Won 2-1 | +171516 |
| 4sealed | 364 | Epperson, Alexander (1521) | Won 2-1 | +181534 |
| 5sealed | 287 | Wisner, Dylan (1484) | Won 2-0 | +171551 |
| 6sealed | 203 | Tan, Ralph (1537) | Won 2-0 | +181569 |
| 7sealed | 132 | Timmons, Nicholas (1562) | Won 2-1 | +181587 |
| 8sealed | 151 | King, Mason (1607) | Lost 1-2 | -181569 |
| 9sealed | 155 | Suarez, Jonathan (1706) | Lost 0-2 | -161553 |
| average opponent: 1534record: 6-3 | new rating: 1553 | |||