Jackson, William
Current rating: 1459
Record: 9-15-1
| Regional Championships Dallas 2023 (pioneer) | starting rating: 1440 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 473 | Jung, Jeremy (1500) | Won 2-1 | +191459 |
| 2pioneer | 282 | Gideon, Alexander (1525) | Won 2-0 | +191478 |
| 3pioneer | 134 | Boland, Michael (1867) | Lost 1-2 | -111467 |
| 4pioneer | 211 | Johnson, Nicolas (1743) | Lost 0-2 | -131454 |
| 5pioneer | 268 | Hamilton, Chris (1555) | Won 2-0 | +201474 |
| 6pioneer | 142 | Lindy, Josh (1504) | Lost 1-2 | -181456 |
| 7pioneer | 302 | Curry, Brian (1556) | Won 2-0 | +201476 |
| 8pioneer | 158 | Quigley, Tom (1556) | Lost 0-2 | -171459 |
| top | average opponent: 1601record: 4-4 | new rating: 1459 | ||
| Regional Championships San Diego 2023 (ONE standard) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 396 | Triebenbacher, Elliott (1566) | Won 2-0 | +201474 |
| 2standard | 160 | Berkowitz, Jordan (1938) | Lost 1-2 | -101464 |
| 3standard | 209 | Baker, Sean (1492) | Lost 0-2 | -171447 |
| 4standard | 273 | Cubr, Adam (1634) | Lost 0-2 | -151432 |
| 5standard | 350 | Goldstein, Abram (1844) | Won 2-1 | +251457 |
| 6standard | 320 | Moffett, Orion (1493) | Lost 0-2 | -171440 |
| top | average opponent: 1661record: 2-4 | new rating: 1440 | ||
| Regional Championships Atlanta 2022 (pioneer) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 1111 | Li, Michael (1591) | Won 2-1 | +201450 |
| 2pioneer | 1137 | Lopez, Andrew (1957) | Lost 0-2 | -91441 |
| 3pioneer | 1307 | Greenberg, Jacob (1550) | Won 2-0 | +201461 |
| 4pioneer | 1160 | Triebenbacher, Elliott (1533) | Lost 0-2 | -171444 |
| 5pioneer | 1308 | Murphy, Chad (1474) | Won 2-0 | +191463 |
| 6pioneer | 1215 | Fay, Timothy (1692) | Lost 1-2 | -141449 |
| 7pioneer | 1252 | Kahovec, Nate (1745) | Draw 1-1 | +51454 |
| top | average opponent: 1649record: 3-3-1 | new rating: 1454 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2137 | Konkey, Adam (1552) | Lost 0-2 | -171483 |
| 2modern | 2146 | Wogensen, Dylan (1484) | Lost 0-2 | -181465 |
| 3modern | 2201 | Gonzalez, Justin (1462) | Lost 1-2 | -181447 |
| 4modern | 2197 | Edelsack, Joseph (1479) | Lost 1-2 | -171430 |
| top | average opponent: 1494record: 0-4 | new rating: 1430 | ||