Vasilakis, Billy
Current rating: 1600
Record: 21-18-1
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 21 | Smith, Alessandro (1473) | Won 2-1 | +181500 |
| 4modern | 8 | Thompson, Alan (1563) | Won 2-1 | +191519 |
| 5modern | 47 | Kahla, Sam (1606) | Lost 1-2 | -161503 |
| 6modern | 48 | Zhang, Bolun (1878) | Won 2-1 | +241527 |
| 7modern | 34 | Mills, Cody (1618) | Won 2-1 | +201547 |
| 8modern | 29 | Colon, Hector (1598) | Won 2-1 | +191566 |
| 9modern | 17 | Mogelgaard, Sean (1590) | Lost 0-2 | -181548 |
| 10modern | 51 | Barrett, Brandon (1598) | Won 2-0 | +191567 |
| 11modern | 29 | Cox, Patrick (2015) | Lost 0-2 | -101557 |
| 12modern | 36 | Bollenback, David (1629) | Won 2-1 | +191576 |
| 13modern | 27 | Plyler, Cody (1630) | Won 2-0 | +191595 |
| 14modern | 15 | Vu, Bach (1627) | Lost 1-2 | -171578 |
| 15modern | 22 | Terpening, Justin (1798) | Won 2-0 | +221600 |
| top | average opponent: 1663record: 9-4 | new rating: 1600 | ||
| Grand Prix Orlando 2018 (M19 standard) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 34 | Smith, Richard [USA] (1362) | Won 2-0 | +151532 |
| 3standard | 30 | Cooper, Kyle (1565) | Lost 1-2 | -171515 |
| 4standard | 163 | Willoughby, David (1577) | Lost 1-2 | -171498 |
| 5standard | 279 | Davis, Matthew (1623) | Lost 0-2 | -161482 |
| top | average opponent: 1532record: 1-3 | new rating: 1482 | ||
| Grand Prix Atlanta 2017 (XLN standard) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 237 | Andrus, Justin (1521) | Lost 1-2 | -181493 |
| 4standard | 315 | Lane, Joseph (1497) | Lost 1-2 | -181475 |
| 5standard | 377 | Reed, Randy (1399) | Won 2-0 | +171492 |
| 6standard | 331 | Corwin, Vincent (1522) | Draw 1-1 | +11493 |
| 7standard | 314 | Johnson, Justin (1420) | Won 2-1 | +161509 |
| 8standard | 214 | Wysocki, Eric (1527) | Won 2-1 | +191528 |
| 9standard | 139 | Maier, Christopher (1952) | Lost 1-2 | -111517 |
| top | average opponent: 1548record: 3-3-1 | new rating: 1517 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 73 | Beck, Benjamin (1500) | Won 2-1 | +181508 |
| 2sealed | 166 | Bigelow, Korbin (1500) | Lost 0-2 | -181490 |
| 3sealed | 419 | Kallas, Christ (1524) | Won 2-0 | +191509 |
| 4sealed | 320 | [anonymous] | Won 2-1 | +201529 |
| 5sealed | 163 | Lugo, Jose (1517) | Lost 0-2 | -181511 |
| top | average opponent: 1541record: 3-2 | new rating: 1511 | ||
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 34 | Ditmore, Robert (1535) | Won 2-0 | +181521 |
| 3standard | 177 | Hafter, David (1550) | Lost 0-2 | -171504 |
| 4standard | 316 | Leigh, Simon (1743) | Lost 0-2 | -141490 |
| top | average opponent: 1609record: 1-2 | new rating: 1490 | ||
| Grand Prix Orlando 2012 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 114 | Spiker, Bobby (1518) | Won 2-1 | +181518 |
| 3standard | 88 | Jury, Nick (1469) | Lost 1-2 | -191499 |
| 4standard | 170 | Polenne, Vincent (1468) | Won 2-0 | +181517 |
| 5standard | 124 | Corbett, Dustyn C (1532) | Won 2-0 | +181535 |
| 6standard | 60 | Perreault, Normand (1559) | Won 2-0 | +191554 |
| 7standard | 87 | Pannell, Thomas (1735) | Lost 1-2 | -151539 |
| 8standard | 137 | Thiessen, Anthony (1509) | Lost 1-2 | -191520 |
| 9standard | 168 | Goldstein, Max (1531) | Lost 0-2 | -171503 |
| top | average opponent: 1540record: 4-4 | new rating: 1503 | ||