Halvorson, Sven
Current rating: 1527
Record: 12-10
| Grand Prix Phoenix 2018 (modern) | starting rating: 1590 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 282 | Lopez, Erik (1361) | Lost 1-2 | -221568 |
| 2modern | 336 | Hounslow, Matthew (1467) | Won 2-0 | +161584 |
| 3modern | 520 | Baker, Grayden (1771) | Lost 1-2 | -151569 |
| 4modern | 509 | Ward, Austin (1478) | Lost 1-2 | -191550 |
| 5modern | 540 | Tran, Dai (1467) | Lost 0-2 | -201530 |
| 6modern | 493 | Stewart, Rhoades (1445) | Won 2-1 | +171547 |
| 7modern | 402 | Reppenhagen, Michael (1462) | Lost 0-2 | -201527 |
| average opponent: 1493record: 2-5 | new rating: 1527 | |||
| Grand Prix Los Angeles 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 72 | Aoki, Chikara (1569) | Lost 1-2 | -171483 |
| 2modern | 824 | Porter, David (1482) | Won 2-1 | +181501 |
| 3modern | 610 | Roberts, Nathan (1439) | Lost 1-2 | -191482 |
| 4modern | 882 | Aoigan, Arthur (1481) | Won 2-0 | +181500 |
| 5modern | 670 | Ryan, Kenzie (1473) | Won 2-0 | +181518 |
| 6modern | 640 | Dunn, Lucas (1467) | Won 2-1 | +171535 |
| 7modern | 327 | McIntosh, Cameron (1502) | Won 2-1 | +171552 |
| 8modern | 251 | Vega, Brian (1658) | Won 2-1 | +201572 |
| 9modern | 88 | Cummings, Ricky (1581) | Won 2-0 | +181590 |
| 10modern | 112 | Scholar, Curtis (1589) | Won 2-1 | +181608 |
| 11modern | 52 | Iaali, Christopher (1640) | Lost 0-2 | -171591 |
| 12modern | 59 | Barnhard, Aaron (1556) | Lost 0-2 | -191572 |
| 13modern | 158 | Tracy, Shane (1539) | Won 2-1 | +171589 |
| 14modern | 75 | Cuaresma, Jeff (1592) | Won 2-0 | +191608 |
| 15modern | 99 | Marentes, Oscar (1627) | Lost 0-2 | -181590 |
| average opponent: 1546record: 10-5 | new rating: 1590 | |||