Karsten, James
Current rating: 1605
Record: 39-39-1
| Grand Prix Richmond 2019 (ELD standard) | starting rating: 1584 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 36 | Maenosono, Kenta (1515) | Lost 0-2 | -201564 |
| 3standard | 171 | Skamagos, Steve (1499) | Won 2-0 | +171581 |
| 4standard | 136 | Masters, Chase (1846) | Lost 1-2 | -131568 |
| 5standard | 164 | Tumavitch, Matt (1924) | Lost 0-2 | -121556 |
| 6standard | 200 | Bolipata, Ian Bonn (1482) | Won 2-0 | +171573 |
| 7standard | 161 | Jia, Jie (1549) | Won 2-1 | +171590 |
| 8standard | 117 | Guzman, Alejandro (1382) | Won 2-0 | +151605 |
| top | average opponent: 1599record: 4-3 | new rating: 1605 | ||
| Grand Prix Atlanta 2019 (legacy) | starting rating: 1571 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 91 | Connolly, James (1553) | Lost 0-2 | -181553 |
| 3legacy | 329 | Rodland, Nathan (1499) | Won 2-1 | +171570 |
| 4legacy | 308 | Lerch, Corey (1694) | Lost 0-2 | -161554 |
| 5legacy | 264 | Dillard, Seth (1501) | Won 2-0 | +171571 |
| 6legacy | 277 | Schneider, Matthew (1526) | Lost 1-2 | -191552 |
| 7legacy | 237 | Kelly, Sean (1407) | Won 2-0 | +151567 |
| 8legacy | 173 | Kaim, Dillon (1467) | Won 2-0 | +171584 |
| top | average opponent: 1521record: 4-3 | new rating: 1584 | ||
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 167 | Henry, Ian (1417) | Won 0-0 | +181451 |
| 3sealed | 247 | Haversat, Jacob (1898) | Won 2-0 | +261477 |
| 4sealed | 115 | Leek, Michael (1492) | Lost 0-2 | -181459 |
| 5sealed | 164 | Lein, David (1534) | Won 2-0 | +191478 |
| 6sealed | 38 | Tam, Gary (1540) | Won 2-0 | +191497 |
| 7sealed | 90 | Istfan, Raeef (1720) | Lost 1-2 | -141483 |
| 8sealed | 124 | Thompson, Bruce (1535) | Won 2-0 | +191502 |
| 9sealed | 84 | Stein, Harrison (1702) | Won 2-1 | +221524 |
| 10draft | 13 | Mcmordie, Noah (1603) | Won 2-0 | +191543 |
| 11draft | 13 | Connors, Parker (1631) | Won 2-1 | +201563 |
| 12draft | 13 | Powers, Michael (1671) | Won 2-0 | +201583 |
| 13draft | 92 | Nichols, Benjamin (1637) | Lost 0-2 | -171566 |
| 14draft | 81 | Doshi, Vishvas (1797) | Won 2-0 | +221588 |
| 15draft | 86 | Hayashi, Riki (1628) | Lost 0-2 | -171571 |
| top | average opponent: 1629record: 10-4 | new rating: 1571 | ||
| Grand Prix Atlanta 2018 (modern) | starting rating: 1415 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 98 | Giraldo, Gabriel (1499) | Won 2-0 | +191434 |
| 3modern | 18 | Morrison, Sean (1537) | Lost 0-2 | -161418 |
| 4modern | 483 | Cummings, Alan (1557) | Lost 0-2 | -151403 |
| 5modern | 573 | Norris, Carter (1484) | Won 2-0 | +191422 |
| 6modern | 329 | Marsh, Jonathan (1766) | Won 2-1 | +241446 |
| 7modern | 147 | Mapson, Michael (1739) | Lost 0-2 | -131433 |
| top | average opponent: 1597record: 3-3 | new rating: 1433 | ||
| Grand Prix Richmond 2018 (std) (M19 standard) | starting rating: 1412 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 81 | Yopp, Eric (1522) | Won 2-1 | +201432 |
| 3standard | 147 | Fournier, Daniel (1929) | Won 2-1 | +271459 |
| 4standard | 52 | Harris, Lamario (1518) | Won 2-1 | +191478 |
| 5standard | 44 | Myers, Jeromy (1805) | Lost 1-2 | -121466 |
| 6standard | 99 | Katine, Josh (1593) | Lost 0-2 | -161450 |
| 7standard | 106 | Demasi, Joaquin (1456) | Lost 0-2 | -181432 |
| 8standard | 166 | Grissom, Shelby (1472) | Lost 1-2 | -171415 |
| top | average opponent: 1614record: 3-4 | new rating: 1415 | ||
| Grand Prix Washington DC 2017 (HOU standard) | starting rating: 1452 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 123 | Frostad, Joel (1517) | Lost 1-2 | -171435 |
| 3standard | 634 | Liberati, Bernard (1539) | Lost 1-2 | -161419 |
| 4standard | 623 | Sharbel, Charlie (1482) | Lost 1-2 | -171402 |
| 5standard | 661 | Sheppard, Bradley (1581) | Won 2-0 | +211423 |
| 6standard | 599 | Cheung, Raymond (1843) | Lost 1-2 | -111412 |
| top | average opponent: 1592record: 1-4 | new rating: 1412 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 203 | Chatel, Cedric (1454) | Lost 1-2 | -191504 |
| 4modern | 743 | Tierney, Seth (1577) | Lost 0-2 | -171487 |
| 5modern | 985 | King, Thomas (1485) | Lost 0-2 | -181469 |
| 6modern | 1032 | Carlson, Drew (1488) | Lost 0-2 | -171452 |
| top | average opponent: 1501record: 0-4 | new rating: 1452 | ||
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 110 | McCord, Alec (1441) | Lost 0-2 | -201503 |
| 3sealed | 395 | Imbs, Rob (1417) | Won 2-0 | +171520 |
| 4sealed | 424 | Cooney, Michael (1568) | Draw 1-1 | +11521 |
| 5sealed | 376 | Johnson, James (1493) | Lost 1-2 | -191502 |
| 6sealed | 492 | Martinez, Benjamin (1466) | Won 2-1 | +171519 |
| 7sealed | 366 | Leeds, Jon (1517) | Won 2-1 | +181537 |
| 8sealed | 266 | Doshi, Vishvas (1755) | Lost 0-2 | -141523 |
| top | average opponent: 1522record: 3-3-1 | new rating: 1523 | ||
| Grand Prix Atlanta 2016 (KLD limited) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 627 | Malinowski, Mike (1633) | Won 2-1 | +201529 |
| 3sealed | 794 | Tousi, Cameron (1509) | Won 2-1 | +171546 |
| 4sealed | 643 | Fennell, Christopher (1910) | Lost 1-2 | -111535 |
| 5sealed | 767 | Maurici, Micheal (1793) | Lost 0-2 | -141521 |
| 6sealed | 936 | Jones, Travis (1556) | Won 2-0 | +191540 |
| 7sealed | 665 | Churchill, Ken (1453) | Lost 1-2 | -201520 |
| 8sealed | 834 | Chatham, Benjamin (1610) | Won 2-1 | +201540 |
| 9sealed | 696 | Garcia III, Joe (1577) | Lost 1-2 | -171523 |
| top | average opponent: 1630record: 4-4 | new rating: 1523 | ||
| Grand Prix Charlotte 2016 (modern) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 282 | Routzahn, Aaron (1457) | Lost 1-2 | -181463 |
| 3modern | 965 | Scisco, Taylor (1500) | Won 2-1 | +181481 |
| 4modern | 44 | Spurlock, Scott (1423) | Won 2-0 | +171498 |
| 5modern | 472 | Woolet, Andrew (1623) | Lost 0-2 | -161482 |
| 6modern | 356 | Lendor, Ulysses (1482) | Won 2-0 | +181500 |
| 7modern | 251 | Leech, Shea (1725) | Lost 1-2 | -141486 |
| 8modern | 451 | Hedayati, Riaz (1526) | Won 2-1 | +191505 |
| 9modern | 341 | Rosenfeld, Ian (1625) | Won 2-1 | +201525 |
| 10modern | 178 | Benedict, William (1599) | Lost 1-2 | -161509 |
| 11modern | 272 | Perez, Joshua (1500) | Won 2-0 | +181527 |
| 12modern | 258 | Adamo, Thomas (1529) | Lost 1-2 | -181509 |
| top | average opponent: 1544record: 6-5 | new rating: 1509 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 180 | Liemthongsamout, Pornenila (1500) | Lost 1-2 | -181482 |
| 2sealed | 590 | Carver, Scott (1440) | Lost 1-2 | -191463 |
| 3sealed | 844 | Beach, Edward (1451) | Won 2-1 | +181481 |
| top | average opponent: 1464record: 1-2 | new rating: 1481 | ||