Herbers, Logan
Current rating: 1516
Record: 7-6
| Grand Prix Cleveland 2015 (FRF limited) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 127 | Scicchitano, Lou (1500) | Won 2-0 | +181515 |
| 2sealed | 120 | Cruz, Jeffrey (1448) | Lost 1-2 | -191496 |
| 3sealed | 437 | Tran, Nam (1562) | Won 2-1 | +191515 |
| 4sealed | 573 | Morton, Philip (1571) | Lost 1-2 | -171498 |
| 5sealed | 432 | Davis, Daniel (1490) | Won 2-1 | +181516 |
| 6sealed | 304 | Andrzejewski, Bradley (1519) | Won 2-0 | +181534 |
| 7sealed | 318 | Miller, Josh (1530) | Lost 0-2 | -181516 |
| average opponent: 1517record: 4-3 | new rating: 1516 | |||
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 664 | Heritage, Matthew (1500) | Lost 0-2 | -181482 |
| 2standard | 881 | Easter, Rachelle (1482) | Won 2-0 | +181500 |
| 3standard | 892 | Tam, Wai (997) | Lost 1-2 | -261474 |
| 4standard | 957 | Johnson, Daniel (1415) | Won 2-0 | +161490 |
| 5standard | 746 | Keenan, Jon (1508) | Won 2-0 | +191509 |
| 6standard | 724 | Jacob, Michael (1877) | Lost 1-2 | -121497 |
| average opponent: 1463record: 3-3 | new rating: 1497 | |||