Tonner, Gordon
Current rating: 1569
Record: 20-19
| Regional Championships Calgary 2023 (pioneer) | starting rating: 1579 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 4 | Doyle, Eddy (1550) | Won 2-1 | +171596 |
| 2pioneer | 42 | Kalmring, Steven (1478) | Won 2-0 | +161612 |
| 3pioneer | 18 | Austin, Nik (1597) | Won 2-0 | +181630 |
| 4pioneer | 8 | Jolicoeur, Draven (1588) | Lost 0-2 | -191611 |
| 5pioneer | 21 | Coffey, Nyko (1474) | Lost 1-2 | -211590 |
| 6pioneer | 30 | Leney, Kyle (1513) | Won 2-0 | +171607 |
| 7pioneer | 26 | Toth, Luis (1546) | Lost 1-2 | -191588 |
| 8pioneer | 30 | McGrath, Seamus (1533) | Lost 1-2 | -191569 |
| top | average opponent: 1535record: 4-4 | new rating: 1569 | ||
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1596 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 11 | Williamson, Tim (1500) | Won 2-0 | +171613 |
| 2standard | 183 | Castor, Kenny (1738) | Lost 0-2 | -161597 |
| 3standard | 397 | Meyer, Mathias (1577) | Lost 0-2 | -181579 |
| top | average opponent: 1605record: 1-2 | new rating: 1579 | ||
| Grand Prix Vancouver 2017 (modern) | starting rating: 1582 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2528 | Freed, Jordan (1500) | Won 2-1 | +161598 |
| 2modern | 2319 | Freeman, Wilson (1591) | Won 2-1 | +181616 |
| 3modern | 2228 | DAmico, Ezequiel (1536) | Won 2-0 | +161632 |
| 4modern | 2076 | Manner, Joey (1940) | Lost 1-2 | -121620 |
| 5modern | 2126 | Wilson, Jason (1520) | Won 2-0 | +161636 |
| 6modern | 2096 | Parnell, Shay (1526) | Won 2-0 | +161652 |
| 7modern | 2026 | Gagan, Adam (1609) | Lost 0-2 | -191633 |
| 8modern | 2116 | Cobb, Axel (1596) | Lost 0-2 | -181615 |
| 9modern | 2160 | Tadie, Mac (1608) | Lost 1-2 | -191596 |
| top | average opponent: 1603record: 5-4 | new rating: 1596 | ||
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1429 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 219 | Hoang, Sau (1430) | Won 2-0 | +181447 |
| 4standard | 42 | Zeno, Matthew (1554) | Won 2-0 | +201467 |
| 5standard | 22 | Maynard, Pascal (2072) | Won 2-0 | +281495 |
| 6standard | 1 | Leeman, Lyle (1469) | Won 2-0 | +181513 |
| 7standard | 5 | Donegan, Dylan (1793) | Won 2-0 | +231536 |
| 8standard | 6 | Harkness, Dylan (1617) | Won 2-1 | +191555 |
| 9standard | 6 | Merced, Davis (1749) | Won 2-1 | +221577 |
| 10standard | 1 | Severson, Eric (1935) | Won 2-0 | +241601 |
| 11standard | 1 | Nelson, Brad (2310) | Won 2-1 | +291630 |
| 12standard | 1 | Feingersh, Rachel (1814) | Lost 1-2 | -151615 |
| 13standard | 4 | Wescoe, Craig (2110) | Lost 0-2 | -91606 |
| 14standard | 6 | Zafra, Marcel Angelo (1934) | Lost 0-2 | -131593 |
| 15standard | 9 | Calcano, Christian (1945) | Lost 1-2 | -111582 |
| top | average opponent: 1825record: 9-4 | new rating: 1582 | ||
| Grand Prix Vancouver 2015 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 142 | Robson, Kenji (1482) | Lost 1-2 | -181464 |
| 3modern | 250 | Wellons, Mark (1499) | Lost 0-2 | -171447 |
| 4modern | 441 | O'Mahony, Ruairi (1481) | Lost 0-2 | -181429 |
| top | average opponent: 1488record: 0-3 | new rating: 1429 | ||
| Grand Prix Vancouver 2012 (AVR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 191 | Jeffery, Jon (1500) | Lost 0-2 | -181482 |
| 2sealed | 321 | Altenbure, Roger (1482) | Won 2-1 | +181500 |
| 3sealed | 200 | Jones, Mike (1501) | Lost 0-2 | -181482 |
| top | average opponent: 1494record: 1-2 | new rating: 1482 | ||