Canfield, Jonathan
Current rating: 1596
Record: 31-24 (GP) / 3-4-1 (professional)
| Mythic Championship VI (ELD standard) | starting rating: 1599 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 8 | Andejeski, Jason (1820) | Won 2-0 | +221621 |
| 2draft | 8 | Klocker, Elias (1867) | Draw 1-1 | +41625 |
| 3draft | 8 | Marvin, Kevin (1513) | Won 2-0 | +161641 |
| 4standard | 30 | Sadowsky, Joel (1767) | Lost 0-2 | -151626 |
| 5standard | 76 | Strasler, Noah (1573) | Won 2-1 | +171643 |
| 6standard | 49 | Sele, Yves (2187) | Lost 0-2 | -91634 |
| 7standard | 88 | Verkooren, Renzo (1606) | Lost 1-2 | -191615 |
| 8standard | 122 | Roeder, Ryan (1531) | Lost 1-2 | -191596 |
| top | average opponent: 1733record: 3-4-1 | new rating: 1596 | ||
| Grand Prix Birmingham 2019 (modern) | starting rating: 1627 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 169 | Higgins, Gerard (1415) | Lost 1-2 | -221605 |
| 2modern | 316 | Templeman, Christopher (1481) | Won 2-1 | +161621 |
| 3modern | 322 | Brown, Gary (1584) | Won 2-0 | +171638 |
| 4modern | 199 | Hanratty, Tom (1501) | Lost 0-2 | -201618 |
| 5modern | 257 | Walker, Rikki (1586) | Lost 0-2 | -191599 |
| top | average opponent: 1514record: 2-3 | new rating: 1599 | ||
| Grand Prix Houston 2016 (OGW standard) | starting rating: 1647 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 308 | Cannon, Berry (1522) | Lost 0-2 | -201627 |
| top | record: 0-1 | new rating: 1627 | ||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1671 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 1452 | Godfrey, Rob (1493) | Lost 0-2 | -211650 |
| 3modern | 1446 | Niece, Lee (1718) | Won 2-1 | +191669 |
| 4modern | 1481 | Mather, David (1471) | Won 2-1 | +151684 |
| 5modern | 1165 | Schlosser, Kenneth (1539) | Lost 0-2 | -211663 |
| 6modern | 1307 | Waechter, Kurt (1465) | Won 2-1 | +151678 |
| 7modern | 1121 | Linne, Arthur (1574) | Won 2-1 | +161694 |
| 8modern | 837 | Brock, Hutch (1743) | Won 2-1 | +191713 |
| 9modern | 761 | Epps, Theron (1577) | Won 2-1 | +151728 |
| 10modern | 715 | Strauss, Thilo (1651) | Lost 0-2 | -191709 |
| 11modern | 727 | Horner, Justin (1530) | Lost 1-2 | -211688 |
| 12modern | 754 | Fitzgerald, Marcus (1520) | Lost 1-2 | -211667 |
| 13modern | 757 | Manges, James (1583) | Lost 0-2 | -201647 |
| top | average opponent: 1572record: 6-6 | new rating: 1647 | ||
| Grand Prix Miami 2015 (FRF standard) | starting rating: 1590 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 245 | Gonzalez, Alexis (1517) | Won 2-0 | +171607 |
| 3standard | 229 | Ganz, Andreas (1711) | Won 2-0 | +201627 |
| 4standard | 65 | Akpinar, Tim (1764) | Lost 0-2 | -161611 |
| 5standard | 113 | Chavez, Miguel (1536) | Won 2-0 | +171628 |
| 6standard | 143 | Marchica, Vincent (1529) | Won 2-0 | +161644 |
| 7standard | 68 | Hu, Leon (1545) | Won 2-1 | +161660 |
| 8standard | 42 | Soldevila, Josue (1724) | Won 2-1 | +201680 |
| 9standard | 29 | Rodriguez, Steven (1688) | Won 2-0 | +181698 |
| 10standard | 8 | Phillips, Andreas (1642) | Won 2-0 | +171715 |
| 11standard | 9 | Betesh, Ralph (1746) | Lost 0-2 | -181697 |
| 12standard | 24 | Nelson, Brad (2183) | Lost 0-2 | -91688 |
| 13standard | 32 | Cross, Phillip (1609) | Lost 0-2 | -201668 |
| 14standard | 38 | Price, Pat (1786) | Lost 1-2 | -161652 |
| 15standard | 52 | Flynn, Kyle (1717) | Won 2-1 | +191671 |
| top | average opponent: 1693record: 9-5 | new rating: 1671 | ||
| Grand Prix Memphis 2015 (FRF standard) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 154 | Jakimavicius, Martin (1515) | Won 2-1 | +181549 |
| 2standard | 232 | Keathley, Zach (1378) | Won 2-1 | +151564 |
| 3standard | 174 | Kendall, Daniel (1520) | Lost 1-2 | -191545 |
| 4standard | 184 | Kaplan, Louis (1878) | Lost 0-2 | -121533 |
| 5standard | 330 | Crafton, Jonathan (1502) | Won 2-1 | +171550 |
| 6standard | 200 | Cohran, Michael (1522) | Won 2-1 | +181568 |
| 7standard | 193 | Shidler, Andrea (1470) | Won 2-1 | +161584 |
| 8standard | 135 | Steadman, Tyler (1475) | Won 2-1 | +161600 |
| 9standard | 70 | Black, Samuel (2116) | Lost 0-2 | -101590 |
| top | average opponent: 1597record: 6-3 | new rating: 1590 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 277 | Pavone, Matthew (1500) | Lost 1-2 | -191536 |
| 2sealed | 330 | Clinton, Jamal (1443) | Won 2-0 | +161552 |
| 3sealed | 259 | Dilullo, Jonathan (1501) | Won 2-1 | +171569 |
| 4sealed | 221 | Lam, Roberto (1486) | Lost 0-2 | -191550 |
| 5sealed | 234 | Ellinport, Blake (1503) | Lost 0-2 | -191531 |
| top | average opponent: 1486record: 2-3 | new rating: 1531 | ||
| Grand Prix Atlanta 2012 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 99 | Horowitz, Eric (1500) | Won 2-1 | +181518 |
| 2legacy | 87 | Vanover, Corey (1515) | Won 2-0 | +181536 |
| 3legacy | 94 | Whitehurst, Clinton (1514) | Lost 1-2 | -181518 |
| 4legacy | 262 | Zoll, Bryan (1488) | Lost 0-2 | -191499 |
| 5legacy | 300 | Wilson, Zack (1497) | Won 2-1 | +181517 |
| 6legacy | 200 | Strange, Stephen (1511) | Won 2-0 | +181535 |
| 7legacy | 145 | deQuillettes, K.C. (1505) | Won 2-0 | +171552 |
| 8legacy | 113 | Dutiel, Brad (1579) | Lost 0-2 | -171535 |
| 9legacy | 142 | Hunt, Justin (1651) | Won 2-0 | +201555 |
| top | average opponent: 1529record: 6-3 | new rating: 1555 | ||