Zvonek, Randall
Current rating: 1457
| Grand Prix Milwaukee 2018 (GRN standard) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 128 | Crocker, Ken (1568) | Won 2-1 | +201493 |
| 2standard | 164 | Kopp, Lance (1518) | Won 2-1 | +181511 |
| 3standard | 190 | Haggerty, Adam (1551) | Lost 0-2 | -171494 |
| 4standard | 230 | Martin, Andrew (1398) | Lost 0-2 | -201474 |
| 5standard | 389 | Brickman, Justin (1550) | Lost 0-2 | -171457 |
| top | average opponent: 1517record: 2-3 | new rating: 1457 | ||
| Grand Prix Indianapolis 2012 (legacy) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 4legacy | 87 | Hunter, Wilson (1631) | Lost 1-2 | -151449 |
| 5legacy | 102 | Brokmeier, Steven (1535) | Won 2-1 | +201469 |
| 6legacy | 159 | Gillenwater, Chad (1519) | Won 2-1 | +191488 |
| 7legacy | 29 | Brown, Damian (1570) | Draw 1-1 | +11489 |
| 8legacy | 64 | Clark, Michael P (1594) | Lost 0-2 | -161473 |
| top | average opponent: 1570record: 2-2-1 | new rating: 1473 | ||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 339 | Allen, Benjamin (1500) | Lost 0-2 | -181482 |
| 2legacy | 515 | Verdell, Joshua (1483) | Lost 0-2 | -181464 |
| top | average opponent: 1491record: 0-2 | new rating: 1464 | ||