Dennis, Johnathan
Current rating: 1436
Record: 6-11-2
| Grand Prix Houston 2018 (RIX limited) | starting rating: 1419 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 96 | Mitchell, Jon (1500) | Won 2-1 | +191438 |
| 2sealed | 71 | Edwards, Craig (1722) | Lost 1-2 | -131425 |
| 3sealed | 225 | Mills, Matthew (1459) | Won 2-1 | +191444 |
| 4sealed | 255 | Bursavich, Austin (1920) | Lost 0-2 | -101434 |
| 5sealed | 224 | Truong, Michael (1504) | Won 2-0 | +191453 |
| 6sealed | 238 | Persaud, Vishan (1521) | Lost 1-2 | -171436 |
| top | average opponent: 1604record: 3-3 | new rating: 1436 | ||
| Grand Prix Houston 2016 (OGW standard) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 195 | Baker, Sam [USA] (1492) | Lost 0-2 | -171433 |
| 2standard | 555 | Cano, Braian (1482) | Won 2-0 | +191452 |
| 3standard | 596 | Walden, Tyler (1499) | Draw 1-1 | +11453 |
| 4standard | 566 | Stephens, Alex (1499) | Lost 0-2 | -171436 |
| 5standard | 694 | Erhart, Kenneth (1482) | Lost 1-2 | -171419 |
| top | average opponent: 1491record: 1-3-1 | new rating: 1419 | ||
| Grand Prix San Antonio 2014 (KTK standard) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 307 | Williams, Ricky (1500) | Lost 0-2 | -171429 |
| 2standard | 421 | Brittain, Randy (1482) | Draw 1-1 | +11430 |
| 3standard | 474 | Binkley, Rebecca (1482) | Won 2-0 | +191449 |
| 4standard | 361 | Burrow, Brandon (1500) | Won 2-1 | +191468 |
| 5standard | 245 | Gardner, Austin (1502) | Lost 1-2 | -181450 |
| top | average opponent: 1493record: 2-2-1 | new rating: 1450 | ||
| Grand Prix Atlanta 2014 (JOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 601 | Sellers, Shelton (1500) | Lost 0-2 | -181482 |
| 2sealed | 660 | Boveda, Jose (1472) | Lost 0-2 | -181464 |
| 3sealed | 727 | Maise, Andrew (1464) | Lost 1-2 | -181446 |
| top | average opponent: 1479record: 0-3 | new rating: 1446 | ||