Cannon, John
Current rating: 1349
Record: 15-24
| Grand Prix London 2018 (RIX limited) | starting rating: 1407 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 295 | Amann, Aymeric (1519) | Lost 0-2 | -161391 |
| 2sealed | 551 | Brett, Philip (1467) | Lost 0-2 | -161375 |
| 3sealed | 839 | Cleak, James (1369) | Lost 0-2 | -181357 |
| 4sealed | 929 | Ahn, Ei Yong (1477) | Lost 0-2 | -161341 |
| 5sealed | 860 | Head, Kevin (1391) | Won 2-1 | +191360 |
| 6sealed | 739 | Winward-Stuart, James (1516) | Lost 0-2 | -151345 |
| 7sealed | 641 | Robinson, Aaron (1429) | Won 2-1 | +191364 |
| 8sealed | 539 | Schmitz, Sascha (1500) | Lost 1-2 | -151349 |
| top | average opponent: 1458record: 2-6 | new rating: 1349 | ||
| Grand Prix Charlotte 2016 (modern) | starting rating: 1474 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 417 | Corter, Bryant (1571) | Lost 1-2 | -171457 |
| 2modern | 859 | Luebbert, Ryan (1482) | Lost 1-2 | -171440 |
| 3modern | 1096 | Jennings, Dylan (1514) | Lost 0-2 | -171423 |
| 4modern | 841 | Surovy, Tyler (1540) | Lost 0-2 | -161407 |
| top | average opponent: 1527record: 0-4 | new rating: 1407 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 446 | Cooney, Nate (1446) | Lost 1-2 | -191494 |
| 2modern | 967 | Woerner, Alex (1480) | Won 2-1 | +181512 |
| 3modern | 834 | Druschel, Kevin (1419) | Lost 1-2 | -201492 |
| 4modern | 908 | Sharma, Aidan (1483) | Lost 1-2 | -181474 |
| top | average opponent: 1457record: 1-3 | new rating: 1474 | ||
| Grand Prix Cincinnati 2014 (BNG standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 244 | Gentile, Anthony (1500) | Won 2-0 | +181534 |
| 2standard | 107 | Gotthardt, Ben (1516) | Lost 1-2 | -181516 |
| 3standard | 403 | Davis, Zachary (1465) | Won 2-1 | +171533 |
| 4standard | 306 | McKinley, John (1457) | Won 2-1 | +161549 |
| 5standard | 113 | Morrison, Michael (1532) | Lost 1-2 | -181531 |
| 6standard | 386 | Miller, Brian D (1524) | Lost 1-2 | -181513 |
| top | average opponent: 1499record: 3-3 | new rating: 1513 | ||
| Grand Prix Louisville 2013 (THS standard) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 110 | Palmer, Jason (1500) | Won 2-0 | +181519 |
| 2standard | 123 | Hampton, Nathan (1500) | Won 2-1 | +171536 |
| 3standard | 227 | Lewis, Christopher (1404) | Lost 0-2 | -201516 |
| 4standard | 293 | Rasmussen, Matt (1530) | Won 2-0 | +181534 |
| 5standard | 268 | Byrd, Kalab (1536) | Won 2-0 | +181552 |
| 6standard | 223 | Creekmur, Nick (1538) | Lost 1-2 | -181534 |
| 7standard | 295 | Spencer, John (1521) | Won 2-1 | +181552 |
| 8standard | 281 | Sims, Christopher (1610) | Lost 1-2 | -171535 |
| 9standard | 233 | Cranfill, Drew (1521) | Lost 0-2 | -191516 |
| top | average opponent: 1518record: 5-4 | new rating: 1516 | ||
| Grand Prix Indianapolis 2013 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 201 | Rice, Kevin (1482) | Lost 0-2 | -181482 |
| 2sealed | 258 | Sweedler, Jeffrey (1481) | Lost 0-2 | -181464 |
| 3sealed | 312 | Watson, Brandon (1463) | Won 2-1 | +181482 |
| 4sealed | 351 | Brown, Andrew 2 (1483) | Lost 0-2 | -181464 |
| 5sealed | 319 | Gould, Zach (1464) | Won 2-1 | +181482 |
| 6sealed | 269 | Cox, Doug H (1527) | Won 2-0 | +181500 |
| 7sealed | 214 | O'Donnell, Connor (1499) | Won 2-1 | +181518 |
| 8sealed | 156 | Dahlen, Theodore (1522) | Lost 1-2 | -171501 |
| top | average opponent: 1490record: 4-4 | new rating: 1501 | ||