Williams, Ronald
Current rating: 1543
Record: 14-13-1
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 102 | Russell, Joshua (1626) | Won 2-1 | +201562 |
| 2sealed | 264 | Sanchez, Miguel (1543) | Lost 0-2 | -191543 |
| 3sealed | 527 | Racedo, Alen (1508) | Won 2-0 | +181561 |
| 4sealed | 429 | Duque, Diego (1511) | Lost 1-2 | -191542 |
| 5sealed | 594 | Powers, Joshua (1622) | Won 2-1 | +191561 |
| 6sealed | 282 | Gill, Miranda (1536) | Lost 0-2 | -181543 |
| top | average opponent: 1558record: 3-3 | new rating: 1543 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 297 | Wiedhopf, Zachary (1500) | Lost 0-2 | -181501 |
| 2sealed | 769 | Lounsbury, Tricia (1481) | Won 2-1 | +171518 |
| 3sealed | 661 | Jacobson, Steve (1503) | Won 2-0 | +181536 |
| 4sealed | 706 | Burg, Steven (1568) | Lost 0-2 | -171519 |
| 5sealed | 682 | Sneed, Adam (1498) | Won 2-1 | +171536 |
| 6sealed | 483 | Bartley, Matthew (1784) | Lost 0-2 | -131523 |
| 7sealed | 605 | Lachance, Sebastien (1470) | Won 2-1 | +171540 |
| 8sealed | 2130 | Seaton, John (1630) | Won 2-1 | +191559 |
| 9sealed | 265 | Nguyen, Thanh (1609) | Lost 1-2 | -171542 |
| top | average opponent: 1560record: 5-4 | new rating: 1542 | ||
| Grand Prix Albuquerque 2016 (SOI limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 362 | Ballhorn, Jace (1500) | Won 2-0 | +181522 |
| 2sealed | 280 | Cahill, Steve (1661) | Lost 0-2 | -161506 |
| 3sealed | 311 | Hicks, Joseph (1454) | Won 2-1 | +171523 |
| 4sealed | 317 | Holguin, Isaac (1518) | Won 2-1 | +181541 |
| 5sealed | 256 | Bennett, Gavin (1845) | Lost 0-2 | -131528 |
| 6sealed | 221 | Franson, Chris (1501) | Lost 1-2 | -181510 |
| 7sealed | 355 | Dean, John (1636) | Won 2-0 | +201530 |
| 8sealed | 227 | Oliver, Neal (1915) | Lost 0-2 | -111519 |
| top | average opponent: 1629record: 4-4 | new rating: 1519 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 164 | Leff, Josh (1500) | Won 2-1 | +181518 |
| 2sealed | 4 | Kelly, Shane (1518) | Won 2-0 | +181536 |
| 3sealed | 97 | Jiang, Shangliang (1591) | Lost 0-2 | -171519 |
| 4sealed | 204 | Costigan, Harrison (1518) | Draw 1-1 | 01519 |
| 5sealed | 137 | Lo, Steven (1667) | Lost 0-2 | -151504 |
| top | average opponent: 1559record: 2-2-1 | new rating: 1504 | ||