Thiessen, Joel
Current rating: 1480
Record: 4-5-3
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 420 | Maxim, Christopher (1446) | Won 2-0 | +171499 |
| 2standard | 128 | Gemi, Jeffrey (1304) | Won 2-1 | +151514 |
| 3standard | 10 | Lines, Dylan (1611) | Lost 1-2 | -171497 |
| 4standard | 337 | Falcon Santiago, Pedro (1506) | Lost 1-2 | -171480 |
| average opponent: 1467record: 2-2 | new rating: 1480 | |||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 193 | Ramos, Will (1462) | Won 2-1 | +171517 |
| 2standard | 286 | Amari, Gavin (1568) | Draw 1-1 | +11518 |
| 3standard | 110 | Beltran, Matthew (1576) | Lost 1-2 | -171501 |
| 4standard | 492 | Jones, Andrea (1485) | Draw 1-1 | 01501 |
| 5standard | 593 | Garrison, Christopher (1507) | Lost 0-2 | -181483 |
| 6standard | 644 | Nelson, Shelby (1484) | Won 2-0 | +181501 |
| 7standard | 525 | Salvagione, Rachel (1499) | Lost 0-2 | -181483 |
| 8standard | 479 | Jones, Adam (1418) | Draw 1-1 | -11482 |
| average opponent: 1500record: 2-3-3 | new rating: 1482 | |||