Dahlmann, Jacob
Current rating: 1630
Record: 10-4
| Grand Prix Columbus 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 107 | Kuzma, Matthew (1518) | Won 2-0 | +181518 |
| 3modern | 88 | Celli, Patrick (1468) | Lost 1-2 | -191499 |
| 4modern | 154 | Hatchett, Isaac (1446) | Won 2-1 | +171516 |
| 5modern | 47 | Graebner, Samuel (1516) | Won 2-0 | +181534 |
| 6modern | 74 | Zhou, Xing (1511) | Lost 1-2 | -181516 |
| 7modern | 117 | Geer, Brett (1663) | Won 2-1 | +211537 |
| 8modern | 76 | Craite, Hunter (1556) | Won 2-1 | +181555 |
| 9modern | 57 | Chen, Gregory (1746) | Won 2-1 | +211576 |
| 10modern | 204 | Donegan, Dylan (1887) | Won 2-0 | +241600 |
| 11modern | 191 | Takahashi, Yuta (2021) | Lost 1-2 | -111589 |
| 12modern | 198 | Schriever, Daniel (1727) | Lost 0-2 | -151574 |
| 13modern | 210 | Tomsovic, Tommy (1702) | Won 2-0 | +201594 |
| 14modern | 194 | Kurty, Nathaniel (1575) | Won 2-1 | +181612 |
| 15modern | 187 | Olds, Patrick (1656) | Won 2-1 | +181630 |
| average opponent: 1642record: 10-4 | new rating: 1630 | |||