Bowser, Douglas P
Current rating: 1463
Record: 7-9
| Grand Prix Columbus 2012 (modern) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 122 | Holland, Ryan (1503) | Lost 0-2 | -181501 |
| 2modern | 343 | Bonar, Aaron (1482) | Won 2-0 | +171518 |
| 3modern | 279 | Kikta Jr., Mark (1499) | Lost 0-2 | -181500 |
| 4modern | 403 | Bleezarde, Matthew (1482) | Lost 1-2 | -181482 |
| 5modern | 425 | Gill, Brandon (1463) | Won 2-0 | +171499 |
| 6modern | 371 | Vaughn, Wade (1482) | Lost 0-2 | -181481 |
| 7modern | 335 | Nelson, Thomas (1468) | Lost 0-2 | -181463 |
| average opponent: 1482record: 2-5 | new rating: 1463 | |||
| Grand Prix Columbus 2007 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 159 | Gaudard, Jason (1637) | Won 2-0 | +201520 |
| 2legacy | 219 | Long, Noah (1493) | Lost 0-2 | -181502 |
| 3legacy | 283 | McCarthy, Jimmy (1483) | Lost 0-2 | -181484 |
| 4legacy | 338 | Coutley, Tony J (1482) | Won 2-0 | +181502 |
| 5legacy | 241 | Ostergaard, Henrik (1481) | Won 2-0 | +171519 |
| 6legacy | 219 | Wongtawon, Suracheat (1521) | Lost 1-2 | -181501 |
| 7legacy | 217 | Parnes, Stuart (1501) | Won 2-1 | +181519 |
| 8legacy | 189 | Kepler, Jonathan (1514) | Lost 1-2 | -181501 |
| 9legacy | 164 | Harris, Dustin R (1499) | Won 2-1 | +181519 |
| average opponent: 1512record: 5-4 | new rating: 1519 | |||