Riddell, Jonathan
Current rating: 1492
| Grand Prix Oklahoma City 2015 (modern) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 96 | Koenig, Jake (1614) | Lost 1-2 | -171512 |
| 2modern | 386 | Stark, Austin (1482) | Lost 1-2 | -181494 |
| 3modern | 571 | Wernimont, Kyle (1376) | Won 0-0 | +151509 |
| 4modern | 432 | Ramsay, John (1563) | Lost 0-2 | -171492 |
| top | average opponent: 1509record: 1-3 | new rating: 1492 | ||
| Grand Prix Memphis 2015 (FRF standard) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 59 | Myers, Joshua (1500) | Won 2-0 | +181507 |
| 2standard | 100 | Keslin, William (1415) | Won 2-0 | +171524 |
| 3standard | 5 | Yanaga, Ben (1493) | Won 2-1 | +171541 |
| 4standard | 33 | Bimonte, Mat (1604) | Won 2-0 | +191560 |
| 5standard | 4 | Boblitt, Zach (1573) | Won 2-1 | +191579 |
| 6standard | 23 | Krautmann, Wenzel (1928) | Lost 0-2 | -121567 |
| 7standard | 45 | Cobb, Richard (1446) | Lost 1-2 | -211546 |
| 8standard | 106 | Baxter, Drew (1547) | Lost 0-2 | -171529 |
| top | average opponent: 1563record: 5-3 | new rating: 1529 | ||
| Grand Prix Kansas City 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4modern | 11 | Shaw, John (1553) | Won 2-0 | +191519 |
| 5modern | 27 | Hoogland, Jeff (1587) | Lost 1-2 | -171502 |
| 6modern | 133 | Becker, Nathaniel (1521) | Won 2-0 | +191521 |
| 7modern | 61 | Marion, Andrew (1528) | Lost 1-2 | -181503 |
| 8modern | 70 | Geary, Justin (1756) | Lost 0-2 | -141489 |
| top | average opponent: 1589record: 2-3 | new rating: 1489 | ||