Pierson, Mike A
Current rating: 1429
Record: 4-8-1
| Grand Prix Denver 2013 (legacy) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 114 | Korb, Silas (1421) | Lost 0-2 | -191465 |
| 2legacy | 246 | Lehmkuhl, Jake D (1468) | Lost 0-2 | -181447 |
| 3legacy | 269 | Mcadams, Daniel J (1463) | Draw 1-1 | 01447 |
| 4legacy | 318 | Fell, Daniel (1421) | Won 2-0 | +171464 |
| 5legacy | 273 | Henry, Cameron (1449) | Lost 1-2 | -181446 |
| 6legacy | 259 | Mohr, Tim (1480) | Lost 0-2 | -171429 |
| 7legacy | 226 | Gayed, Alex (1427) | Won 2-0 | +181447 |
| 8legacy | 189 | COUEY, ROBB (1468) | Lost 0-2 | -181429 |
| average opponent: 1450record: 2-5-1 | new rating: 1429 | |||
| Grand Prix Lincoln 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 173 | Nyberg, Michael (1688) | Lost 0-2 | -151485 |
| 3modern | 245 | Pullum, Michael D (1500) | Won 2-0 | +191504 |
| 4modern | 129 | Jennings, Cody (1432) | Lost 1-2 | -201484 |
| 5modern | 258 | Helton, Chance W (1431) | Won 2-0 | +171501 |
| 6modern | 129 | Gove, Jason E (1518) | Lost 0-2 | -171484 |
| average opponent: 1514record: 2-3 | new rating: 1484 | |||