Pruim, Thomas
Current rating: 1527
| Grand Prix Madison 2019 (WAR limited) | starting rating: 1548 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 101 | Eichenlaub, John (1504) | Lost 0-2 | -181530 |
| 2sealed | 256 | Derenne, Zac (1481) | Won 2-0 | +171547 |
| 3sealed | 331 | Fonseka, Aruna (1509) | Lost 0-2 | -191528 |
| 4sealed | 316 | Larson, Erik (1499) | Won 2-0 | +181546 |
| 5sealed | 232 | Sorrels, Matthew (1511) | Lost 0-2 | -191527 |
| top | average opponent: 1501record: 2-3 | new rating: 1527 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 294 | Kontrovitz, Michael (1500) | Won 2-0 | +191481 |
| 2sealed | 137 | Zhang, Linda (1507) | Won 2-0 | +191500 |
| 3sealed | 78 | Shuman, Tim (1564) | Won 2-1 | +191519 |
| 4sealed | 13 | Burnell, Kaitlyn (1541) | Lost 0-2 | -181501 |
| 5sealed | 77 | Merriam, Ross (1994) | Won 2-0 | +261527 |
| 6sealed | 69 | Latham, Benjamin (1657) | Lost 1-2 | -151512 |
| 7sealed | 119 | DeNardo, Ben (1531) | Won 2-1 | +181530 |
| 8sealed | 48 | Kessler, Alex (1521) | Won 2-0 | +181548 |
| 9sealed | 63 | Svilich, Erik (1575) | Draw 1-1 | 01548 |
| top | average opponent: 1599record: 6-2-1 | new rating: 1548 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1369 | Pennington, Tyler (1500) | Won 2-0 | +181518 |
| 2modern | 1167 | Brooks, Tyler (1500) | Lost 0-2 | -181500 |
| 3modern | 1384 | Ingram, Michael (1586) | Lost 0-2 | -171483 |
| 4modern | 1570 | Wojciechowski, Stanley (1482) | Won 2-1 | +181501 |
| 5modern | 1378 | Harrison, Jonathan (1419) | Lost 1-2 | -191482 |
| 6modern | 1436 | Stewart, Kevin (1411) | Lost 0-2 | -201462 |
| top | average opponent: 1483record: 2-4 | new rating: 1462 | ||