Keffer, Christian
Current rating: 1603
Record: 24-19
| Regional Championships Atlanta 2023 (pioneer) | starting rating: 1676 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 514 | Cruz, Joseph (1598) | Lost 1-2 | -201656 |
| 2pioneer | 562 | Crone, Jacob (1689) | Won 2-0 | +191675 |
| 3pioneer | 287 | Nunez, Joseph (1499) | Lost 0-2 | -211654 |
| 4pioneer | 337 | Phillips, Ryan (1515) | Won 2-1 | +151669 |
| 5pioneer | 330 | Greenidge, Jamal (1417) | Won 2-1 | +141683 |
| 6pioneer | 181 | Zimmerman, Spencer (1592) | Lost 0-2 | -201663 |
| 7pioneer | 331 | Bennett, Riley (1498) | Lost 0-2 | -211642 |
| 8pioneer | 323 | Hynes, Benjamin (1474) | Lost 0-2 | -211621 |
| 9pioneer | 259 | Li, Bruce (1644) | Lost 0-2 | -181603 |
| top | average opponent: 1547record: 3-6 | new rating: 1603 | ||
| Grand Prix Columbus 2019 (modern) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 32 | Mork, Elliot (1573) | Won 2-0 | +181586 |
| 4modern | 42 | Cartier, Matthew (1600) | Lost 1-2 | -181568 |
| 5modern | 114 | Ingram, Michael (1558) | Won 2-0 | +181586 |
| 6modern | 36 | Gallagher, Sean (1514) | Won 2-0 | +171603 |
| 7modern | 21 | Holmes, John (1573) | Won 2-1 | +171620 |
| 8modern | 25 | Rolph, Sam-Luca (1913) | Lost 0-2 | -131607 |
| 9modern | 20 | Wise, Donnie (1660) | Won 2-0 | +191626 |
| 10modern | 188 | Fields, Khyler (1627) | Won 2-0 | +181644 |
| 11modern | 188 | Coval, Brian (1664) | Won 2-1 | +191663 |
| 12modern | 179 | Loong, Matthew (1757) | Won 2-0 | +191682 |
| 13modern | 173 | Zhou, Zirui (1901) | Lost 0-2 | -141668 |
| 14modern | 176 | Yao, Zile (1831) | Won 2-0 | +211689 |
| 15modern | 172 | Masters, Chase (1935) | Lost 0-2 | -131676 |
| top | average opponent: 1701record: 9-4 | new rating: 1676 | ||
| Grand Prix Cleveland 2019 (RNA limited) | starting rating: 1579 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 245 | Alexander, Zachary (1567) | Lost 1-2 | -181561 |
| 4sealed | 276 | Wolbers, Andrew (1796) | Lost 0-2 | -141547 |
| 5sealed | 366 | Diebel, Aiden (1499) | Won 2-1 | +171564 |
| 6sealed | 343 | Williams, Justin 6158 (1427) | Won 2-0 | +151579 |
| 7sealed | 259 | Campana, Rubens (1936) | Lost 1-2 | -111568 |
| top | average opponent: 1645record: 2-3 | new rating: 1568 | ||
| Grand Prix Pittsburgh 2018 (DOM standard) | starting rating: 1600 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 98 | Heckert, Jakob (1446) | Lost 0-2 | -211579 |
| top | record: 0-1 | new rating: 1579 | ||
| Grand Prix Indianapolis 2017 (HOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 231 | Cohen, Mitchel (1500) | Won 2-0 | +181518 |
| 2sealed | 58 | Johnson, Angelique (1697) | Lost 0-2 | -151503 |
| 3sealed | 287 | Lennartz, Eric (1352) | Won 2-0 | +161519 |
| 4sealed | 349 | Germar, Richard (1765) | Won 2-0 | +221541 |
| 5sealed | 238 | Reindl, Colin (1712) | Lost 1-2 | -151526 |
| 6sealed | 229 | Chodan, Ross (1631) | Lost 0-2 | -161510 |
| 7sealed | 290 | Chien, Richard (1529) | Won 2-1 | +181528 |
| 8sealed | 217 | Skipworth, Nathan (1410) | Won 2-0 | +161544 |
| 9sealed | 237 | Strodl, Courtland (1547) | Won 2-0 | +181562 |
| 10draft | 115 | Wang, Yuan (1631) | Lost 1-2 | -171545 |
| 11draft | 109 | Torres, Mario (1462) | Won 2-0 | +171562 |
| 12draft | 103 | Franklin, Eric (1676) | Lost 0-2 | -161546 |
| 13draft | 74 | Smock, Devin (1544) | Won 2-1 | +181564 |
| 14draft | 61 | Freitas Dos Santos, Antonio Carlos (1566) | Won 2-0 | +181582 |
| 15draft | 28 | Bilbrey, Kevin (1564) | Won 2-1 | +181600 |
| top | average opponent: 1572record: 10-5 | new rating: 1600 | ||