Johnston, Joel
Current rating: 1588
Record: 42-39-1
| Grand Prix Las Vegas 2019 (limited) (MH1 limited) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 13 | Smith, Trey (1447) | Won 2-1 | +161584 |
| 3sealed | 196 | Stemmer, Jan (1600) | Lost 0-2 | -181566 |
| 4sealed | 204 | Levy, Justin (1563) | Won 2-0 | +181584 |
| 5sealed | 242 | Urrea, Nicolas (1553) | Won 2-0 | +181602 |
| 6sealed | 141 | Bontkowski, Eddie (1718) | Draw 1-1 | +21604 |
| 7sealed | 113 | Mei, Mike Songhao (1733) | Lost 0-2 | -161588 |
| top | average opponent: 1602record: 3-2-1 | new rating: 1588 | ||
| Grand Prix Sacramento 2018 (M19 limited) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 121 | Hu, Jason (1536) | Lost 1-2 | -181526 |
| 3sealed | 288 | Olguin, Javier (1483) | Won 2-0 | +171543 |
| 4sealed | 282 | Koss, Collin (1506) | Lost 0-2 | -191524 |
| 5sealed | 431 | Crosby, Michael (1929) | Lost 0-2 | -111513 |
| 6sealed | 389 | Mayne, Jordan (1483) | Won 2-0 | +181531 |
| 7sealed | 299 | Louke, Mary (1454) | Won 2-0 | +161547 |
| 8sealed | 220 | Garam, Anthony (1710) | Won 2-0 | +211568 |
| top | average opponent: 1586record: 4-3 | new rating: 1568 | ||
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 117 | Brouillet, Jean-Luc (1573) | Won 2-0 | +181598 |
| 3sealed | 360 | Paredes, Noe (1500) | Lost 1-2 | -201578 |
| 4sealed | 481 | Barrett, Daniel (1618) | Lost 0-2 | -171561 |
| 5sealed | 547 | Robins, Cyrus (1622) | Lost 1-2 | -171544 |
| top | average opponent: 1578record: 1-3 | new rating: 1544 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1572 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 638 | Foglesong, Nicklaus (1627) | Lost 0-2 | -171555 |
| 2standard | 502 | Uehara, Chelsea (1484) | Lost 0-2 | -191536 |
| 3standard | 725 | Rautenbach, Nicky (1463) | Won 2-0 | +171553 |
| 4standard | 539 | Leon, Markes (1434) | Lost 0-2 | -201533 |
| 5standard | 624 | Fuller, Matthew (1415) | Won 2-0 | +151548 |
| 6standard | 581 | Moore, Scott (1431) | Won 2-0 | +161564 |
| 7standard | 382 | Kiedrowski, Garrett (1489) | Won 2-1 | +171581 |
| 8standard | 385 | McPoland, Stephen (1589) | Lost 1-2 | -181563 |
| 9standard | 327 | LaBrado, Jake (1498) | Won 2-1 | +171580 |
| top | average opponent: 1492record: 5-4 | new rating: 1580 | ||
| Grand Prix Phoenix 2017 (XLN limited) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 189 | Stout, Andy (1683) | Won 2-1 | +211552 |
| 2sealed | 31 | Shipley, Harry (1510) | Won 2-0 | +171569 |
| 3sealed | 76 | Howland, Spencer (1788) | Lost 0-2 | -141555 |
| 4sealed | 211 | Walterman, Austin (1743) | Won 2-1 | +221577 |
| 5sealed | 147 | Loveman, Eli (1834) | Won 2-1 | +221599 |
| 6sealed | 161 | Smet, Roald (1536) | Lost 1-2 | -191580 |
| 7sealed | 250 | Friedman, Ben (2027) | Lost 1-2 | -101570 |
| 8sealed | 233 | Castro, Robert (1786) | Lost 0-2 | -141556 |
| 9sealed | 251 | Shapiro, Joseph (1486) | Won 2-0 | +161572 |
| top | average opponent: 1710record: 5-4 | new rating: 1572 | ||
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 339 | Nicol, Jason (1500) | Lost 0-2 | -191504 |
| 2sealed | 659 | Lang, Justin (1479) | Won 2-0 | +181522 |
| 3sealed | 649 | Ruport, Gavin (1446) | Won 2-1 | +161538 |
| 4sealed | 477 | Simon, Michael (1805) | Won 2-0 | +231561 |
| 5sealed | 303 | Razo, Miguel (1519) | Lost 1-2 | -191542 |
| 6sealed | 331 | Turney, Christopher (1670) | Won 2-0 | +211563 |
| 7sealed | 175 | Wiitanen, Josh (1827) | Lost 0-2 | -141549 |
| 8sealed | 440 | Clark, Dominic (1545) | Lost 0-2 | -181531 |
| top | average opponent: 1599record: 4-4 | new rating: 1531 | ||
| Grand Prix Albuquerque 2016 (SOI limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 176 | Mick, Joel (1489) | Lost 0-2 | -191500 |
| 2sealed | 455 | Bahr, Michael (1503) | Won 2-0 | +181518 |
| 3sealed | 301 | Skousen, Trace (1491) | Won 2-0 | +181536 |
| 4sealed | 359 | Summers, Ryan (1623) | Won 2-1 | +191555 |
| 5sealed | 236 | Gervasi, Bronson (1467) | Won 2-1 | +171572 |
| 6sealed | 142 | Gale, Gregory (1603) | Lost 0-2 | -181554 |
| 7sealed | 134 | Creager, Kyle (1574) | Won 2-0 | +191573 |
| 8sealed | 73 | Posey, Kendall (1551) | Lost 1-2 | -191554 |
| 9sealed | 160 | Torrey, Toby (1546) | Won 2-0 | +181572 |
| 10draft | 99 | Sokol, Greg (1883) | Lost 1-2 | -121560 |
| 11draft | 76 | Oakes, Connor (1530) | Lost 0-2 | -191541 |
| 12draft | 134 | Scheu, Zachary (1521) | Won 2-1 | +181559 |
| 13draft | 125 | Parish, Simon (1517) | Lost 1-2 | -191540 |
| 15draft | 32 | Nelson, Colleen (1578) | Lost 0-2 | -171523 |
| top | average opponent: 1563record: 7-7 | new rating: 1523 | ||
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 212 | Imano, Terry (1464) | Lost 1-2 | -191503 |
| 2standard | 432 | Arbe, John (1465) | Won 2-0 | +181521 |
| 3standard | 468 | Barrat, David (1500) | Won 2-1 | +171538 |
| 4standard | 234 | Blood, Zane (1521) | Won 2-0 | +181556 |
| 5standard | 110 | Liwag, Justin (1549) | Lost 0-2 | -181538 |
| 6standard | 232 | Sellers, Michael (1487) | Lost 0-2 | -191519 |
| top | average opponent: 1497record: 3-3 | new rating: 1519 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1564 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 106 | Stanbury, Cory (1482) | Lost 1-2 | -191545 |
| 2sealed | 229 | Stringham, Bob (1483) | Lost 1-2 | -191526 |
| 3sealed | 301 | Tran, Quang (1461) | Won 2-1 | +161542 |
| 4sealed | 244 | Chow, Harold (1427) | Lost 0-2 | -201522 |
| top | average opponent: 1463record: 1-3 | new rating: 1522 | ||
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 179 | Hardwick, Richard (1500) | Won 2-1 | +181517 |
| 2sealed | 109 | Nicholas, Stephen (1658) | Won 2-1 | +211538 |
| 3sealed | 44 | Chen, John (1502) | Lost 0-2 | -191519 |
| 4sealed | 265 | Reckas, Zach (1519) | Won 2-0 | +181537 |
| 5sealed | 126 | Woodward, Jonathan (1736) | Won 2-0 | +211558 |
| 6sealed | 109 | Rodriguez-Garcia, Oscar (1555) | Won 2-0 | +181576 |
| 7sealed | 81 | Roncancio, Daniel (1611) | Won 2-0 | +191595 |
| 8sealed | 41 | Martin, Pete (1558) | Lost 1-2 | -191576 |
| 9sealed | 56 | Bartolomei, Iain (1916) | Lost 1-2 | -121564 |
| top | average opponent: 1617record: 6-3 | new rating: 1564 | ||
| Grand Prix Boston 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 120 | Schwartz, Stephen (1505) | Won 2-1 | +181518 |
| 2extended | 54 | Gluck, Terrence (1485) | Lost 0-2 | -181500 |
| 3extended | 186 | Grudzina, John (1467) | Lost 1-2 | -191481 |
| 4extended | 257 | Wells, Ben (1484) | Won 2-0 | +181499 |
| 5extended | 224 | Martin, Juan (1500) | Won 2-1 | +181517 |
| 6extended | 117 | Son, Young (1516) | Lost 0-2 | -181499 |
| top | average opponent: 1493record: 3-3 | new rating: 1499 | ||