Leffeler, Logan
Current rating: 1534
Record: 11-10
| Grand Prix Memphis 2019 (RNA standard) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 38 | Ehret, Andrew (1544) | Won 2-0 | +181561 |
| 2standard | 178 | Vaughn, Brian (1443) | Won 2-0 | +151576 |
| 3standard | 106 | Drake, Paul (1489) | Lost 1-2 | -191557 |
| 4standard | 246 | Quintero, Pedro (1357) | Lost 1-2 | -221535 |
| 5standard | 243 | Mcginn, Nathan (1501) | Won 2-0 | +181553 |
| 6standard | 201 | Thorley, Taten (1521) | Lost 0-2 | -191534 |
| average opponent: 1476record: 3-3 | new rating: 1534 | |||
| Grand Prix Atlanta 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 195 | Ford, Ben (1500) | Won 2-0 | +181518 |
| 2modern | 207 | Vess, William (1564) | Won 2-1 | +191537 |
| 3modern | 185 | Scherer, Caleb (1631) | Lost 1-2 | -161521 |
| 4modern | 330 | Synan, David (1507) | Won 2-1 | +171538 |
| 5modern | 341 | Parot, Ignacio (1876) | Lost 0-2 | -121526 |
| 6modern | 272 | Hall, Alexander (1515) | Won 2-1 | +181544 |
| 7modern | 305 | Smith, Seth (1541) | Won 2-1 | +181562 |
| 8modern | 141 | Beltran, Matthew (1630) | Won 2-1 | +191581 |
| 9modern | 74 | Peters, Kyle (1909) | Lost 1-2 | -121569 |
| 10modern | 115 | Drohberg, Philipp (1740) | Lost 1-2 | -151554 |
| 11modern | 142 | Edwards, Craig (1913) | Lost 0-2 | -121542 |
| 12modern | 146 | Zell, Corey (1490) | Won 2-0 | +171559 |
| 13modern | 134 | Peace, Matthew (1581) | Lost 0-2 | -171542 |
| 14modern | 123 | Keithline, Brendan (1564) | Won 2-1 | +181560 |
| 15modern | 119 | Geringer, Jeff (1582) | Lost 0-2 | -171543 |
| average opponent: 1636record: 8-7 | new rating: 1543 | |||