Dittmer, Egbert
Current rating: 1411
Record: 4-9
| Grand Prix Houston 2016 (OGW standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 345 | Blue, Nolan (1539) | Lost 1-2 | -171464 |
| 2standard | 686 | Soliz, Max (1446) | Lost 0-2 | -181446 |
| 3standard | 779 | Zhang, Albert (1465) | Lost 1-2 | -181428 |
| 4standard | 836 | Medina, Javier (1447) | Lost 0-2 | -171411 |
| average opponent: 1474record: 0-4 | new rating: 1411 | |||
| Grand Prix Dallas-Fort Worth 2015 (ORI limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 250 | Molina, John (1500) | Lost 1-2 | -181482 |
| 2sealed | 544 | Anderson, Joshua (1459) | Won 2-1 | +181500 |
| 3sealed | 391 | Shovar, Philip (1430) | Lost 1-2 | -201480 |
| 4sealed | 638 | Gay, Mary (1480) | Won 2-1 | +181498 |
| 5sealed | 521 | Ellis, Justin (1467) | Won 2-0 | +181516 |
| 6sealed | 303 | Duncan, Zachary (1655) | Lost 0-2 | -161500 |
| 7sealed | 362 | Blankenship, Rhiannon (1502) | Won 2-0 | +181518 |
| 8sealed | 255 | Moore, Andrew (1485) | Lost 1-2 | -181500 |
| 9sealed | 237 | Horn, Kyle (1466) | Lost 1-2 | -191481 |
| average opponent: 1494record: 4-5 | new rating: 1481 | |||