Wion, Mark
Current rating: 1462
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 258 | Duarte, Seth (1516) | Won 2-0 | +191452 |
| 2sealed | 366 | Holtin, Benjamin (1732) | Lost 0-2 | -131439 |
| 3sealed | 577 | He, Jennifer (1464) | Won 2-0 | +191458 |
| 4sealed | 319 | Thornally, Bryan (1581) | Lost 0-2 | -161442 |
| 5sealed | 420 | Firestone, Spencer (1502) | Won 2-0 | +191461 |
| 6sealed | 447 | Pifer, Brian (1520) | Won 2-0 | +191480 |
| 7sealed | 226 | Smyth, Jason (1860) | Won 2-1 | +251505 |
| 8sealed | 109 | Yeh, Chih-Cheng (1896) | Lost 0-2 | -121493 |
| 9sealed | 290 | Baker, Chris (1679) | Won 2-1 | +221515 |
| 10draft | 57 | Candelario, Derek (1589) | Lost 0-2 | -171498 |
| 11draft | 56 | Solis, Oscar (1454) | Lost 0-0 | -191479 |
| 13draft | 208 | Myers, Walker (1546) | Lost 0-2 | -171462 |
| top | average opponent: 1612record: 6-6 | new rating: 1462 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 499 | Standlee, Chancey (1555) | Lost 1-2 | -171468 |
| 2sealed | 377 | Flannery, Shane (1482) | Lost 1-2 | -181450 |
| 3sealed | 518 | Pryor, Jason (1464) | Lost 1-2 | -171433 |
| top | average opponent: 1500record: 0-3 | new rating: 1433 | ||
| Grand Prix Los Angeles 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 408 | Sweany, Steven (1465) | Won 2-1 | +171517 |
| 2standard | 393 | Fisher, Wilson (1559) | Lost 1-2 | -171500 |
| 3standard | 504 | Rogers, Alexandra (1500) | Won 2-1 | +181518 |
| 4standard | 527 | Olvera, Bryan (1698) | Lost 0-2 | -151503 |
| 5standard | 418 | Seifert, Jeff (1476) | Lost 0-2 | -181485 |
| top | average opponent: 1539record: 2-3 | new rating: 1485 | ||