Halverson, Leif
Current rating: 1387
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1396 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 293 | McLane, Chris (1500) | Won 2-1 | +201416 |
| 2modern | 333 | Hamonic, Steven (1518) | Lost 1-2 | -161400 |
| 3modern | 611 | Carlin, Patrick (1485) | Lost 1-2 | -171383 |
| 4modern | 686 | Fierro, Alex (1433) | Won 2-0 | +191402 |
| 5modern | 601 | Walker, Christopher (1541) | Lost 0-2 | -151387 |
| top | average opponent: 1495record: 2-3 | new rating: 1387 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 395 | Desveaux, Marcel (1500) | Lost 0-2 | -171431 |
| 2modern | 468 | Phillips, Kyle (1374) | Won 2-0 | +171448 |
| 3modern | 351 | Stojak, Peter (1404) | Lost 0-2 | -191429 |
| 4modern | 527 | Shrader, Johnathon (1481) | Won 2-1 | +191448 |
| 5modern | 305 | Lynch, John (1474) | Lost 0-2 | -171431 |
| 6modern | 393 | Barrett, Chris (1461) | Lost 0-2 | -181413 |
| 7modern | 316 | Lux, Jason (1443) | Lost 1-2 | -171396 |
| top | average opponent: 1448record: 2-5 | new rating: 1396 | ||
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 115 | Coppola, Christopher (1590) | Lost 0-2 | -161484 |
| 2legacy | 468 | Gibson, Chris n (1561) | Lost 0-2 | -171467 |
| 3legacy | 752 | Quinn, Stephen (1464) | Lost 0-2 | -181449 |
| 4legacy | 783 | Durocher, Vincent (1450) | Lost 0-2 | -181431 |
| 5legacy | 744 | Hager, Todd (1380) | Won 2-0 | +171448 |
| 6legacy | 660 | Corrado, Cameron (1464) | Draw 1-1 | 01448 |
| top | average opponent: 1485record: 1-4-1 | new rating: 1448 | ||