Hattenhauer, Justin
Current rating: 1545
Record: 8-6
| Grand Prix Atlanta 2018 (modern) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 378 | Wood, Derik (1688) | Won 2-0 | +211560 |
| 2modern | 195 | Peruchi, Connor (1643) | Won 2-1 | +191579 |
| 3modern | 275 | Hatchel, Tyler (1792) | Lost 0-2 | -141565 |
| 4modern | 252 | Stevens, Kane (1519) | Won 2-0 | +171582 |
| 5modern | 188 | Stokes, James (1555) | Lost 0-2 | -181564 |
| 6modern | 384 | George, Bradley (1517) | Lost 0-2 | -191545 |
| average opponent: 1619record: 3-3 | new rating: 1545 | |||
| Grand Prix Memphis 2015 (FRF standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 179 | Robertson, Timothy (1500) | Lost 0-2 | -181482 |
| 2standard | 372 | Barron, Coy (1482) | Won 2-1 | +181500 |
| 3standard | 264 | Jones, Ryan (1596) | Lost 1-2 | -161484 |
| 4standard | 364 | Tang, Fredy (1536) | Won 2-0 | +191503 |
| 5standard | 364 | Thigpen, Bobby (1505) | Won 2-0 | +181521 |
| 6standard | 273 | Beke, Marina (1520) | Won 2-0 | +181539 |
| 7standard | 142 | Pounds, Robert (1601) | Won 2-1 | +191558 |
| 8standard | 58 | Bedford, Tyler (1519) | Lost 0-2 | -191539 |
| average opponent: 1532record: 5-3 | new rating: 1539 | |||