J, Jonathan
Current rating: 1487
Record: 8-9-3
| Grand Prix Houston 2013 (DGM limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 234 | Flores, Adela (1500) | Draw 1-1 | 01487 |
| 2sealed | 239 | Lively, Joey (1500) | Won 2-1 | +181505 |
| 3sealed | 153 | Kimmich, Matthew (1518) | Lost 0-2 | -181487 |
| top | average opponent: 1506record: 1-1-1 | new rating: 1487 | ||
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 235 | Rinehart, Micah (1570) | Won 2-1 | +191524 |
| 2sealed | 58 | Mann, Richard (1517) | Lost 0-2 | -181506 |
| 3sealed | 294 | Trejo, Andres (1428) | Lost 0-2 | -191487 |
| 4sealed | 424 | Walker, Jeremy (1482) | Won 2-0 | +181505 |
| 5sealed | 269 | Jones, Robert (1499) | Lost 0-2 | -181487 |
| top | average opponent: 1499record: 2-3 | new rating: 1487 | ||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 22 | Chamberlain, Garrett (1518) | Won 2-0 | +191519 |
| 3standard | 23 | Flodstrom-Sconce, Christian (1609) | Lost 0-2 | -171502 |
| 4standard | 272 | Becker, Matthew M (1665) | Draw 1-1 | +31505 |
| 5standard | 258 | Hammack, Jon (1518) | Won 1-0 | +191524 |
| 6standard | 166 | Zou, Rick Y (1493) | Lost 1-2 | -191505 |
| top | average opponent: 1561record: 2-2-1 | new rating: 1505 | ||
| Grand Prix Houston 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 115 | Freitas, John (1512) | Won 2-1 | +181518 |
| 2extended | 33 | Afable, Coco B (1505) | Lost 0-2 | -181500 |
| 3extended | 158 | Bustamante, Analynn (1541) | Won 2-0 | +191519 |
| 4extended | 147 | Greer, Edward (1503) | Lost 0-2 | -191500 |
| 5extended | 179 | Nammari, Abdullah (1500) | Draw 1-1 | 01500 |
| 6extended | 190 | Watts, Nathan A (1504) | Won 2-1 | +181518 |
| 7extended | 142 | Orr, James (1519) | Lost 1-2 | -181500 |
| top | average opponent: 1512record: 3-3-1 | new rating: 1500 | ||