Pierskalla, Ryan
Current rating: 1480
Record: 16-18
| Grand Prix Minneapolis 2019 (modern) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 309 | Yoakam, Michael (1500) | Won 2-0 | +191486 |
| 2modern | 99 | Pearsall, Michael (1536) | Won 2-1 | +191505 |
| 3modern | 38 | John, Julian (1831) | Lost 0-2 | -131492 |
| 4modern | 130 | Connelly, Matthew (1517) | Won 2-1 | +191511 |
| 5modern | 121 | Purdum, Scott (1506) | Lost 0-2 | -181493 |
| 6modern | 226 | Conway, Emmyra (1809) | Lost 1-2 | -131480 |
| top | average opponent: 1617record: 3-3 | new rating: 1480 | ||
| Grand Prix Omaha 2015 (modern) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 158 | Hoppe, Scott (1545) | Lost 0-2 | -171481 |
| 4modern | 289 | Poellinger, Ethan (1665) | Lost 0-2 | -151466 |
| 5modern | 355 | Wells, Ross (1467) | Won 2-0 | +181484 |
| 6modern | 303 | Hardy, Jason (1532) | Lost 1-2 | -171467 |
| top | average opponent: 1552record: 1-3 | new rating: 1467 | ||
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 4modern | 532 | Rivers, Zachary (1548) | Lost 0-2 | -181517 |
| 5modern | 500 | Farkas, Steve (1450) | Lost 1-2 | -191498 |
| top | average opponent: 1499record: 0-2 | new rating: 1498 | ||
| Grand Prix Kansas City 2013 (modern) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 293 | Grimm, Adam (1500) | Lost 0-2 | -181519 |
| 2modern | 374 | Jones, Jared (1561) | Won 2-0 | +181537 |
| 3modern | 278 | Winter, Dustin (1499) | Won 2-0 | +181555 |
| 4modern | 157 | Yonke, Tyler (1483) | Won 2-0 | +161571 |
| 5modern | 95 | Darby, Brandon (1586) | Lost 0-2 | -171554 |
| 6modern | 195 | Derezinski, Brandon S (1524) | Lost 1-2 | -191535 |
| top | average opponent: 1525record: 3-3 | new rating: 1535 | ||
| Grand Prix Minneapolis 2012 (AVR standard) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 143 | Aase, Jeff (1500) | Won 2-0 | +191506 |
| 2standard | 122 | Bagley, Brett (1490) | Lost 0-2 | -191487 |
| 3standard | 256 | Rafdahl, Keil (1499) | Won 2-0 | +181505 |
| 4standard | 302 | Rosu, Dejan (1312) | Won 2-0 | +151520 |
| 5standard | 153 | Atchison, Taylor (1520) | Lost 0-2 | -181502 |
| 6standard | 231 | Lindborg, James (1485) | Won 2-0 | +181520 |
| 7standard | 182 | Borich, William (1540) | Won 2-1 | +181538 |
| 8standard | 70 | Draper, Dylan (1554) | Won 2-1 | +181556 |
| 9standard | 60 | Hedlund, Rickard (1502) | Lost 1-2 | -191537 |
| top | average opponent: 1489record: 6-3 | new rating: 1537 | ||
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3 | Nuber, Nick (1501) | Lost 0-2 | -181447 |
| 2sealed | 505 | Ewald, Kevin (1481) | Won 2-1 | +191466 |
| 3sealed | 399 | Randall, Richard (1620) | Lost 0-2 | -151451 |
| 4sealed | 486 | Patterson, AJ (1448) | Won 2-1 | +181469 |
| 5sealed | 375 | Marinello, Kirs (1498) | Won 2-1 | +181487 |
| top | average opponent: 1510record: 3-2 | new rating: 1487 | ||
| Grand Prix Kansas City 2008 (ALA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 8 | Franson, Sean (1500) | Lost 0-2 | -181482 |
| 2sealed | 273 | McClellan, Bob (1525) | Lost 1-2 | -171465 |
| top | average opponent: 1512record: 0-2 | new rating: 1465 | ||