Jacobson, Logan
Current rating: 1485
Record: 5-6
| Grand Prix Columbus 2019 (modern) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 142 | Rivas, Oscar (1500) | Lost 1-2 | -171468 |
| 2modern | 245 | Lucente, Vinnie (1495) | Won 2-1 | +181486 |
| 3modern | 189 | Keefe, William (1255) | Won 2-0 | +141500 |
| 4modern | 105 | Hoxie, Richard (1534) | Lost 0-2 | -171483 |
| 5modern | 193 | Edgar, Alex (1557) | Won 2-0 | +191502 |
| 6modern | 154 | Hoffmann, Matthew (1581) | Lost 0-2 | -171485 |
| average opponent: 1487record: 3-3 | new rating: 1485 | |||
| Grand Prix Kansas City 2019 (WAR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 199 | Kilburn, Brad (1470) | Lost 1-2 | -191481 |
| 2standard | 296 | Burke, Ryan (1604) | Won 2-1 | +211502 |
| 3standard | 212 | Termini, Sean (1499) | Won 2-1 | +181520 |
| 4standard | 197 | Montesdeoca, Nicholas (1453) | Lost 0-0 | -201500 |
| 5standard | 260 | Burch, Jacob (1658) | Lost 0-2 | -151485 |
| average opponent: 1537record: 2-3 | new rating: 1485 | |||