Harmon, James
Current rating: 1413
| Grand Prix Denver 2019 (M20 standard) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 107 | Major, Chris (1464) | Lost 0-2 | -171427 |
| 2standard | 214 | Yu, Samuel (1506) | Won 2-0 | +191446 |
| 3standard | 148 | Engel, Jordan (1500) | Draw 1-1 | +11447 |
| 4standard | 204 | Pippenger, Michael (1438) | Lost 1-2 | -181429 |
| 5standard | 240 | Wilkerson, Joseph (1549) | Lost 0-2 | -161413 |
| top | average opponent: 1492record: 1-3-1 | new rating: 1413 | ||
| Grand Prix Denver 2017 (HOU standard) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 294 | Johnson, Chadd (1503) | Lost 0-2 | -181460 |
| 2standard | 374 | Gonzalez, Chris (1491) | Won 1-0 | +191479 |
| 3standard | 281 | Ginsburg, Adam (1505) | Lost 0-2 | -181461 |
| 4standard | 485 | McNamee, Matt (1518) | Lost 0-2 | -171444 |
| top | average opponent: 1504record: 1-3 | new rating: 1444 | ||
| Grand Prix Denver 2015 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 321 | Sherrard, Zach (1500) | Won 2-0 | +181518 |
| 2standard | 60 | Hunter, J.R. (1434) | Won 2-0 | +161534 |
| 3standard | 112 | Fischer, Gage (1535) | Lost 0-2 | -181516 |
| 4standard | 218 | Vondenkamp, Dann (1361) | Lost 0-2 | -201496 |
| 5standard | 409 | Windhausen, Brett (1500) | Lost 0-2 | -181478 |
| top | average opponent: 1466record: 2-3 | new rating: 1478 | ||