Underdahl, Soren
Current rating: 1709 (#5979)
Record: 32-22
| Grand Prix New Jersey 2020 (THB limited) | starting rating: 1632 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 7 | Flores, Edgar (1792) | Lost 0-2 | -151617 |
| 3sealed | 558 | Forscht, Christopher (1470) | Won 2-1 | +151632 |
| 4sealed | 284 | King, Bryan (1520) | Won 2-0 | +161648 |
| 5sealed | 146 | Marcus, Max (1600) | Won 2-1 | +171665 |
| 6sealed | 79 | Sanderson, James (1658) | Won 2-0 | +181683 |
| 7sealed | 110 | O'Halloran-Gannon, Patrick (1573) | Won 2-0 | +161699 |
| 8sealed | 64 | Chen, Eugene (1541) | Won 2-1 | +151714 |
| 9sealed | 20 | Saks, Ethan (1694) | Lost 0-2 | -181696 |
| 10draft | 113 | Condon, Ryan (1671) | Lost 0-2 | -181678 |
| 11draft | 42 | Pardee, Carolyn (1730) | Lost 0-2 | -171661 |
| 12draft | 90 | Fabiano, Gerard (1904) | Won 2-1 | +221683 |
| 13draft | 50 | Coval, Brian (1815) | Won 2-0 | +201703 |
| 14draft | 93 | Kesilewski, Stanley (1702) | Won 2-1 | +181721 |
| 15draft | 77 | Krempels, Craig (2033) | Lost 1-2 | -121709 |
| top | average opponent: 1693record: 9-5 | new rating: 1709 | ||
| Grand Prix Madison 2019 (WAR limited) | starting rating: 1600 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 183 | Campbell, Colin (1431) | Won 2-1 | +151615 |
| 2sealed | 27 | Downs, Mikaela (1664) | Lost 1-2 | -171598 |
| 3sealed | 268 | Littlejohn, Matthew (1468) | Won 2-0 | +151613 |
| 4sealed | 304 | Hull, Joseph (1522) | Won 2-0 | +171630 |
| 5sealed | 118 | Mytinger, John (1662) | Lost 1-2 | -181612 |
| 6sealed | 233 | Craig, Zachary (1518) | Won 2-0 | +161628 |
| 7sealed | 110 | Lambaz, Khair (1568) | Lost 0-2 | -191609 |
| 8sealed | 144 | Rill, Eric (1874) | Won 2-0 | +231632 |
| top | average opponent: 1588record: 5-3 | new rating: 1632 | ||
| Grand Prix Minneapolis 2018 (M19 limited) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 193 | Lopez, Cesar (1451) | Lost 1-2 | -191507 |
| 4sealed | 270 | Bodger, Steve (1616) | Lost 0-2 | -161491 |
| 5sealed | 469 | Schwebach, Michael (1611) | Won 2-1 | +201511 |
| 6sealed | 379 | Bolden, Tanner (1520) | Won 2-0 | +181529 |
| 7sealed | 199 | Brumm, Joel (1486) | Won 2-0 | +171546 |
| 8sealed | 198 | Takimura, Kazuyuki (2081) | Won 2-1 | +271573 |
| 9sealed | 109 | Moore, Charles (1545) | Lost 1-2 | -181555 |
| 10draft | 280 | McAllister, Bruce (1819) | Won 2-1 | +221577 |
| 11draft | 384 | Fevold, Matthew (1577) | Won 2-0 | +181595 |
| 12draft | 310 | Higley, Michael (1625) | Won 2-1 | +191614 |
| 13draft | 320 | Watson, Dane (1631) | Won 2-0 | +181632 |
| 14draft | 312 | Wells, Brian [USA] (1693) | Lost 0-2 | -171615 |
| 15draft | 308 | Marquardt, Robert (1748) | Lost 1-2 | -151600 |
| top | average opponent: 1646record: 8-5 | new rating: 1600 | ||
| Grand Prix Memphis 2018 (RIX standard) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 275 | Gregory, Ryan (1538) | Won 2-1 | +181560 |
| 2standard | 64 | Eng, Edward (1811) | Lost 1-2 | -131547 |
| 3standard | 286 | May, Ryan (1487) | Won 2-1 | +171564 |
| 4standard | 210 | O'Connell, Gaven (1515) | Lost 1-2 | -191545 |
| 5standard | 314 | Love, Troy (1516) | Lost 0-2 | -191526 |
| top | average opponent: 1574record: 2-3 | new rating: 1526 | ||
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 421 | Cusack, James (1391) | Won 2-0 | +161516 |
| 2sealed | 56 | Comber, Jonathon (1574) | Won 2-0 | +191535 |
| 3sealed | 218 | Lombardi, Robert (2002) | Won 2-1 | +261561 |
| 4sealed | 2 | Miller, Byron (1453) | Won 2-1 | +161577 |
| 5sealed | 48 | Macmichael, Luke (1544) | Lost 0-2 | -191558 |
| 6sealed | 155 | Bremner, Paul (1512) | Won 2-0 | +181576 |
| 7sealed | 20 | Prychitka, Aaron (1560) | Won 2-1 | +171593 |
| 8sealed | 22 | Wakisaka, Yoshio (1542) | Lost 0-2 | -191574 |
| 9sealed | 49 | Hicks, Jackson (1751) | Lost 1-2 | -141560 |
| 10draft | 171 | Ireland, Alexander (1516) | Lost 1-2 | -191541 |
| 12draft | 97 | Lawrence, Alexander (1576) | Won 2-0 | +181559 |
| 13draft | 25 | Nikolic, Alex (1555) | Lost 0-2 | -181541 |
| 14draft | 24 | Shoemaker, William (1563) | Won 2-1 | +191560 |
| 15draft | 21 | Jefkins, Michael (1590) | Lost 0-2 | -181542 |
| top | average opponent: 1581record: 8-6 | new rating: 1542 | ||