Harmon, Matthew
Current rating: 1485
Record: 4-5
| Grand Prix Los Angeles 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 564 | Pinedo, Jessie (1500) | Won 2-0 | +181518 |
| 2modern | 141 | Cahalan, Liam (1540) | Lost 1-2 | -181500 |
| 3modern | 605 | Ma, Jonathan (1654) | Lost 1-2 | -151485 |
| 4modern | 768 | Bond, Nick (1484) | Won 2-1 | +181503 |
| 5modern | 750 | Reardon, Jacob (1452) | Lost 1-2 | -191484 |
| 6modern | 826 | Le, Steven (1540) | Won 2-1 | +191503 |
| 7modern | 594 | Leboki, Taylor (1467) | Lost 1-2 | -181485 |
| average opponent: 1520record: 3-4 | new rating: 1485 | |||
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 185 | Twitty, Mark (1500) | Won 2-0 | +181518 |
| 2sealed | 43 | Bircher, Ryan (1512) | Lost 1-2 | -181500 |
| average opponent: 1506record: 1-1 | new rating: 1500 | |||