Cho, Justin
Current rating: 1641
Record: 44-41
| Grand Prix Austin 2020 (modern) | starting rating: 1574 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 93 | Cheslik, Allen (1447) | Won 2-1 | +161590 |
| 4modern | 82 | Nicholas, Gabriel (1808) | Won 2-1 | +221612 |
| 5modern | 18 | Ho, William (1705) | Lost 0-2 | -161596 |
| 6modern | 65 | Henderson, Chase (1506) | Won 2-0 | +161612 |
| 7modern | 23 | Sta.Ana, Micol (1636) | Won 2-0 | +181630 |
| 8modern | 13 | Martin, John (1590) | Lost 0-2 | -181612 |
| 9modern | 36 | Martinez, Austin (1750) | Lost 1-2 | -161596 |
| 10modern | 137 | Corzo, Jonathan (1861) | Lost 0-0 | -131583 |
| 11modern | 149 | Bell, Alex (1720) | Lost 1-2 | -161567 |
| 12modern | 148 | Hu, Jason (1562) | Won 2-1 | +181585 |
| 13modern | 143 | Day, Jaxon (1726) | Won 2-1 | +211606 |
| 14modern | 136 | Leverone, Ryan (1585) | Won 2-1 | +171623 |
| 15modern | 128 | Metyko, Walker (1611) | Won 2-1 | +181641 |
| top | average opponent: 1654record: 8-5 | new rating: 1641 | ||
| Grand Prix Oklahoma City 2019 (ELD standard) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 66 | Gulick, Kory (1398) | Won 2-1 | +151578 |
| 4standard | 34 | Horn, Lee (1717) | Won 2-1 | +211599 |
| 5standard | 6 | Minard, Darin (1929) | Lost 0-0 | -121587 |
| 6standard | 40 | Radmard, Amir (1901) | Lost 1-2 | -131574 |
| 7standard | 68 | Acosta, Marcos (1535) | Lost 0-2 | -191555 |
| 8standard | 70 | Hughes, Shawn (1608) | Won 2-0 | +191574 |
| top | average opponent: 1681record: 3-3 | new rating: 1574 | ||
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1572 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 237 | Bolter, Albert (1500) | Won 2-0 | +171589 |
| 4modern | 118 | Milechman, Daniel (1850) | Won 2-0 | +221611 |
| 5modern | 26 | Gonzalez, Danny (1644) | Lost 0-2 | -171594 |
| 6modern | 120 | Petropoulos, Anthony (1699) | Lost 0-2 | -161578 |
| 7modern | 162 | Radmard, Amir (1769) | Lost 1-2 | -151563 |
| top | average opponent: 1692record: 2-3 | new rating: 1563 | ||
| Grand Prix Memphis 2019 (RNA standard) | starting rating: 1595 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 26 | Dzibela, John (1469) | Won 2-0 | +161611 |
| 4standard | 9 | Fowler, Stephen (1432) | Won 2-0 | +151626 |
| 5standard | 33 | Keithline, Brett (1677) | Lost 1-2 | -171609 |
| 6standard | 45 | Lo, Shong (1484) | Lost 0-2 | -201589 |
| 7standard | 138 | Miller, Daniel (1661) | Lost 1-2 | -171572 |
| top | average opponent: 1545record: 2-3 | new rating: 1572 | ||
| Grand Prix Atlanta 2018 (modern) | starting rating: 1586 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 234 | Zivec, Josef (1782) | Lost 1-2 | -151571 |
| 4modern | 224 | Pal, Carlos (1986) | Won 2-0 | +251596 |
| 5modern | 186 | Levy, Raphael (1994) | Won 2-1 | +251621 |
| 6modern | 190 | Braun-Duin, Brian (2046) | Lost 0-2 | -101611 |
| 7modern | 210 | Lorren, Phillip (1770) | Lost 0-2 | -161595 |
| top | average opponent: 1916record: 2-3 | new rating: 1595 | ||
| Grand Prix Phoenix 2018 (modern) | starting rating: 1621 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 111 | Baeckstrom, Andrew (1940) | Lost 0-2 | -131608 |
| 4modern | 203 | [anonymous] | Won 2-1 | +171625 |
| 5modern | 218 | Sheftel, Alex (1535) | Lost 1-2 | -201605 |
| 6modern | 250 | Paskett, Spencer (1517) | Lost 0-2 | -191586 |
| top | average opponent: 1629record: 1-3 | new rating: 1586 | ||
| Grand Prix Oklahoma City 2017 (modern) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 218 | Banks, Nicolas (1486) | Won 2-0 | +171574 |
| 4modern | 101 | Miller, Kevin (1535) | Lost 1-2 | -191555 |
| 5modern | 208 | Criminger, Blakely (1528) | Won 2-1 | +171572 |
| 6modern | 134 | Skinner, Aaron (1467) | Lost 1-2 | -201552 |
| 7modern | 162 | Jansen, Adam (1942) | Won 2-1 | +251577 |
| 8modern | 96 | Ezell, Charles (1547) | Won 2-0 | +181595 |
| 9modern | 104 | Rojo, Jonathan (1593) | Lost 0-2 | -181577 |
| 10modern | 103 | Clark, Trevor (1563) | Won 2-1 | +171594 |
| 11modern | 128 | South, Tyler (1578) | Lost 0-2 | -181576 |
| 12modern | 117 | VanEvery, Kevin (1803) | Won 2-1 | +221598 |
| 13modern | 121 | Lakhmani, Sherwin (1599) | Won 2-0 | +181616 |
| 14modern | 83 | Pham, Peter [USA] (1606) | Won 2-0 | +181634 |
| 15modern | 62 | Takahashi, Yuta (1906) | Lost 1-2 | -131621 |
| top | average opponent: 1627record: 8-5 | new rating: 1621 | ||
| Grand Prix Washington DC 2017 (HOU standard) | starting rating: 1600 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 207 | Madison, Anna (1647) | Lost 1-2 | -171583 |
| 4standard | 485 | Tarenta, Mark (1505) | Won 2-0 | +161599 |
| 5standard | 249 | Wiest, Hank (1585) | Lost 1-2 | -181581 |
| 6standard | 472 | Schaffer, Rick (1368) | Won 2-0 | +141595 |
| 7standard | 159 | D'Amato, Daniel (1502) | Lost 1-2 | -201575 |
| 8standard | 362 | Hysen, Dylan (1541) | Lost 0-2 | -181557 |
| top | average opponent: 1525record: 2-4 | new rating: 1557 | ||
| Grand Prix Denver 2017 (HOU standard) | starting rating: 1571 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 156 | Gohl, Dustin (1536) | Won 2-1 | +181589 |
| 4standard | 6 | Perry, Alexander (1555) | Lost 1-2 | -191570 |
| 5standard | 135 | Gray, Jeremy (1446) | Won 2-1 | +161586 |
| 6standard | 142 | Hicks, Jackson (1865) | Lost 1-2 | -131573 |
| 7standard | 142 | Spatz, Eric (1446) | Lost 0-2 | -201553 |
| 8standard | 183 | Scott, Andrew R (1527) | Won 2-0 | +171570 |
| 9standard | 143 | Fagan, Christian (1664) | Won 2-1 | +201590 |
| 10standard | 117 | Houston, Zane (1666) | Won 2-0 | +191609 |
| 11standard | 95 | Fileccia, Matthew (1558) | Won 2-1 | +171626 |
| 12standard | 66 | Howland, Spencer (1731) | Lost 1-2 | -161610 |
| 13standard | 84 | Roach, Zachary (1729) | Won 2-1 | +201630 |
| 14standard | 55 | Doberne, David (1927) | Lost 1-2 | -121618 |
| 15standard | 86 | Johnson-Saeger, Samuel (1627) | Lost 1-2 | -181600 |
| top | average opponent: 1637record: 7-6 | new rating: 1600 | ||
| Grand Prix Dallas-Fort Worth 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 645 | Mackey, Tim (1500) | Lost 1-2 | -181482 |
| 2modern | 798 | Blakley, Caul (1480) | Won 2-0 | +181500 |
| 3modern | 567 | Howe, Clifford (1465) | Won 2-0 | +171517 |
| 4modern | 272 | Smith, Elbert (1586) | Won 2-0 | +201537 |
| 5modern | 306 | Garcia, Ruben Tadeo (1590) | Won 2-1 | +191556 |
| 6modern | 113 | Jackson, Nicholas (1553) | Won 2-0 | +181574 |
| 7modern | 31 | Whitson, Tyler (1625) | Lost 1-2 | -181556 |
| 8modern | 259 | Economy, Alexander (1558) | Won 2-0 | +181574 |
| 9modern | 148 | Barich, Aaron (1791) | Lost 0-2 | -141560 |
| 10modern | 175 | Opperman, Michael (1677) | Won 2-1 | +201580 |
| 11modern | 81 | Tao, Jiachen (1949) | Lost 0-2 | -111569 |
| 12modern | 208 | Biaggi, Andrea (1558) | Lost 1-2 | -181551 |
| 13modern | 186 | Sharpe, Christian (1536) | Won 2-1 | +171568 |
| 14modern | 148 | Bruno, David (1739) | Won 2-0 | +221590 |
| 15modern | 152 | Economy, Ryan (1587) | Lost 0-2 | -191571 |
| top | average opponent: 1613record: 9-6 | new rating: 1571 | ||