Ruth, Jonathan
Current rating: 1449
| Grand Prix Madison 2019 (WAR limited) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 139 | Doshi, Vivek (1569) | Lost 0-2 | -171507 |
| 2sealed | 107 | Lepperd, Paige (1482) | Draw 1-1 | -11506 |
| 3sealed | 396 | Hannon, Nick (1415) | Won 2-1 | +171523 |
| 4sealed | 310 | Barragan, Ivan (1506) | Lost 0-2 | -191504 |
| 5sealed | 341 | Balser, Amy (1462) | Lost 1-2 | -181486 |
| 6sealed | 294 | Murray, Laken (1464) | Lost 1-2 | -191467 |
| 7sealed | 126 | Torinus, Molly (1437) | Lost 0-2 | -181449 |
| top | average opponent: 1477record: 1-5-1 | new rating: 1449 | ||
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 614 | Dahl, Brandon (1500) | Won 2-0 | +181522 |
| 2standard | 702 | Watson, Andrew (1579) | Won 2-0 | +191541 |
| 3standard | 535 | Dykman, Stephen (1593) | Lost 0-2 | -171524 |
| 4standard | 651 | Schneider, Daniel (1543) | Won 2-0 | +191543 |
| 5standard | 703 | Chen, Yiwen (1534) | Lost 1-2 | -181525 |
| 6standard | 626 | Caldwell, Joshua (1526) | Won 2-1 | +181543 |
| 7standard | 659 | OSTREM, JOHN (1511) | Lost 0-2 | -191524 |
| top | average opponent: 1541record: 4-3 | new rating: 1524 | ||
| Grand Prix Chicago 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 24 | Knapp, John J (1581) | Lost 0-2 | -171483 |
| 2modern | 403 | Savio, Tony (1482) | Lost 1-2 | -181465 |
| 3modern | 472 | Martincie, Steven (1464) | Won 2-1 | +181483 |
| 4modern | 448 | Biggers, Ehren R (1483) | Won 2-1 | +181501 |
| 5modern | 333 | Wilburn, Aaron (1662) | Lost 0-2 | -151486 |
| 6modern | 377 | Vorva, Shane (1492) | Won 2-0 | +181504 |
| top | average opponent: 1527record: 3-3 | new rating: 1504 | ||