Johnson, Cooper
Current rating: 1580
Record: 20-19
| Regional Championships Dallas 2023 (pioneer) | starting rating: 1592 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 126 | Leete, Aaron (1594) | Lost 1-2 | -181574 |
| 2pioneer | 329 | Bowen, Ryan (1472) | Lost 1-2 | -201554 |
| 3pioneer | 450 | Wagner-Krankel, Robert (1537) | Won 2-1 | +181572 |
| 4pioneer | 315 | Miller, Aaron (1618) | Won 2-0 | +191591 |
| 5pioneer | 371 | Sobczak, Nicholas (1569) | Won 2-1 | +171608 |
| 6pioneer | 141 | Li, Phillip (1802) | Lost 0-2 | -141594 |
| 7pioneer | 362 | Lewis, Aaron (1845) | Lost 1-2 | -141580 |
| top | average opponent: 1634record: 3-4 | new rating: 1580 | ||
| Regional Championships Atlanta 2022 (pioneer) | starting rating: 1474 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 1257 | Zargari, Samuel (1500) | Won 2-1 | +181492 |
| 2pioneer | 1036 | Rodriguez, Ronald (1687) | Lost 1-2 | -141478 |
| 3pioneer | 1124 | Mullin, Geoff (1745) | Lost 0-2 | -141464 |
| 4pioneer | 1241 | Beeghly, Devin (1609) | Lost 0-2 | -151449 |
| 5pioneer | 1360 | Goheen, Rigel (1496) | Won 2-1 | +191468 |
| 6pioneer | 1327 | Innace, Michael (1480) | Won 2-0 | +181486 |
| 7pioneer | 1212 | LaPray, Joel (1511) | Won 2-1 | +191505 |
| 8pioneer | 1157 | Iafrate, Drew (1677) | Won 2-1 | +211526 |
| 9pioneer | 1140 | Koblitz, Cameron (1538) | Won 2-0 | +181544 |
| 10pioneer | 1105 | Johnson, Alex (1791) | Won 2-0 | +221566 |
| 11pioneer | 1062 | Colon, Gustavo (1628) | Won 2-0 | +191585 |
| 12pioneer | 1036 | Pargh, David (1944) | Won 2-1 | +251610 |
| 13pioneer | 1030 | Johnson, Gregory (1620) | Lost 1-2 | -181592 |
| top | average opponent: 1633record: 9-4 | new rating: 1592 | ||
| Grand Prix Pittsburgh 2018 (DOM standard) | starting rating: 1458 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 80 | Grogan, William (1518) | Won 2-0 | +191477 |
| 3standard | 189 | Nguyen, Mike (1473) | Won 2-1 | +181495 |
| 4standard | 90 | Burton, Brandon (1799) | Lost 1-2 | -131482 |
| 5standard | 211 | Barragan, Alfredo (1619) | Won 2-0 | +211503 |
| 6standard | 67 | Davis, Andrew (1757) | Lost 0-2 | -141489 |
| 7standard | 160 | Zeiler, Daniel (1624) | Lost 0-2 | -151474 |
| top | average opponent: 1631record: 3-3 | new rating: 1474 | ||
| Grand Prix Indianapolis 2017 (HOU limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 164 | Askoul, Basem (1520) | Lost 0-2 | -161431 |
| 2sealed | 312 | Cook, Phil (1475) | Won 2-1 | +181449 |
| 3sealed | 310 | Leung, Jason (1431) | Won 2-0 | +181467 |
| 4sealed | 231 | Ahner, Sean (1581) | Lost 0-2 | -161451 |
| 5sealed | 288 | Pfeil, Vernon (1500) | Won 2-0 | +191470 |
| 6sealed | 212 | Roth, Ken (1536) | Lost 0-2 | -171453 |
| 7sealed | 277 | Tunison, Drew (1681) | Won 2-0 | +221475 |
| 8sealed | 235 | Findley, Michael (1506) | Lost 1-2 | -171458 |
| top | average opponent: 1529record: 4-4 | new rating: 1458 | ||
| Grand Prix Pittsburgh 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 299 | McKenna, Jeffrey (1500) | Lost 0-2 | -181482 |
| 2standard | 355 | Poppelreiter, Gary (1409) | Lost 0-2 | -191463 |
| 3standard | 632 | Wall, Allen (1490) | Won 2-0 | +181481 |
| 4standard | 544 | Lucas, Orlando (1484) | Lost 0-2 | -181463 |
| 5standard | 590 | Walters, Nick (1573) | Lost 0-2 | -161447 |
| top | average opponent: 1491record: 1-4 | new rating: 1447 | ||