Keller, Koby
Current rating: 1592
Record: 68-61-1
Grand Prix Denver 2008Grand Prix Denver 2015Grand Prix Las Vegas 2015 (2)Grand Prix Denver 2016Grand Prix Las Vegas 2017 (legacy)Grand Prix Las Vegas 2017 (modern)Grand Prix Denver 2017Grand Prix Oklahoma City 2017Grand Prix Seattle 2018 (legacy)Grand Prix Seattle 2018 (standard)Grand Prix Portland 2018Grand Prix Kansas City 2019Grand Prix Denver 2019Regional Championships Atlanta 2022Regional Championships Atlanta 2023
| Regional Championships Atlanta 2023 (pioneer) | starting rating: 1612 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 16 | Zhang, Rei (1861) | Lost 1-2 | -131599 |
| 2pioneer | 596 | Sarabia, Manuel (1481) | Won 2-0 | +151614 |
| 3pioneer | 368 | Coleman, Larry (1424) | Lost 1-2 | -211593 |
| 4pioneer | 387 | Lockwood, Brantley (1537) | Won 2-0 | +171610 |
| 5pioneer | 283 | Richey, Richard (1651) | Lost 0-2 | -171593 |
| 6pioneer | 485 | Andringa, Jonathan (1484) | Won 2-1 | +161609 |
| 7pioneer | 355 | Debevoise, Andrew (1676) | Lost 1-2 | -171592 |
| top | average opponent: 1588record: 3-4 | new rating: 1592 | ||
| Regional Championships Atlanta 2022 (pioneer) | starting rating: 1675 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 1118 | Ratanacharoensiri, Wyt (1708) | Lost 1-2 | -181657 |
| 2pioneer | 1374 | King, Caleb (1485) | Won 2-1 | +151672 |
| 3pioneer | 1316 | Andress, Nathan (1661) | Lost 1-2 | -181654 |
| 4pioneer | 1263 | Sheppard, Bradley (1654) | Won 2-0 | +181672 |
| 5pioneer | 1269 | Callanan, Gordon (1505) | Lost 1-2 | -211651 |
| 6pioneer | 1341 | Khan, Alec (1667) | Lost 1-2 | -181633 |
| 7pioneer | 1295 | Garcia, James (1472) | Lost 0-2 | -211612 |
| top | average opponent: 1593record: 2-5 | new rating: 1612 | ||
| Grand Prix Denver 2019 (M20 standard) | starting rating: 1696 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 81 | Bradford, Paul (1606) | Lost 0-2 | -201676 |
| 3standard | 197 | Fonken, David (1400) | Won 2-0 | +131689 |
| 4standard | 138 | Steuer, Nathan (1849) | Lost 1-2 | -151674 |
| 5standard | 152 | Noble, Jonathan (1446) | Won 2-1 | +141688 |
| 6standard | 143 | Tamblyn, Mitchell (1945) | Lost 0-2 | -131675 |
| top | average opponent: 1649record: 2-3 | new rating: 1675 | ||
| Grand Prix Kansas City 2019 (WAR standard) | starting rating: 1669 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 200 | Perigo, Jonathan (1493) | Lost 0-2 | -211648 |
| 3standard | 324 | Trepepi, Ethan (1452) | Won 2-0 | +141662 |
| 4standard | 109 | Chandler, Marcus (1559) | Won 0-0 | +171679 |
| 5standard | 77 | Pearson, Justin (1531) | Won 2-0 | +151694 |
| 6standard | 103 | Lundeen, Asa (1548) | Won 2-1 | +151709 |
| 7standard | 59 | Prince, Michael (1524) | Won 2-0 | +151724 |
| 8standard | 15 | Echeverria Paredes, Jose Luis (1956) | Lost 1-2 | -141710 |
| 9standard | 29 | Dickens, Michael (1571) | Won 2-1 | +161726 |
| 10standard | 27 | Gonzalez, Fernando David (2001) | Lost 0-2 | -141712 |
| 11standard | 32 | Madsen, Michael (1777) | Lost 1-2 | -161696 |
| top | average opponent: 1641record: 6-4 | new rating: 1696 | ||
| Grand Prix Portland 2018 (modern) | starting rating: 1714 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 12 | Price, Tyler (1671) | Won 2-0 | +171731 |
| 4modern | 48 | Key, Aaron (1467) | Lost 0-2 | -221709 |
| 5modern | 108 | Peters, Stephen (1699) | Lost 0-2 | -191690 |
| 6modern | 359 | Tippett, Bryce (1512) | Lost 0-2 | -211669 |
| top | average opponent: 1587record: 1-3 | new rating: 1669 | ||
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1622 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 120 | Szaszkiewicz, Joe (1495) | Won 2-1 | +161638 |
| 3standard | 252 | DiMaggio, Matthew (1619) | Won 2-0 | +181656 |
| 4standard | 157 | Gilks, Greg (1713) | Won 2-1 | +191675 |
| 5standard | 80 | Navarro, Eduardo (1561) | Won 2-0 | +161691 |
| 6standard | 1 | Stern, Jon (1981) | Lost 1-2 | -131678 |
| 7standard | 69 | Rodriguez, Brian (1429) | Won 2-0 | +131691 |
| 8standard | 13 | Rolf, John (2154) | Lost 0-2 | -101681 |
| 9standard | 1055 | Merlin, Nicholas (1636) | Draw 1-1 | -11680 |
| 10standard | 1089 | Azure, Grant (1648) | Lost 0-2 | -181662 |
| 11standard | 1115 | Buck, William (1635) | Won 2-1 | +171679 |
| 12standard | 1088 | Swanson, Sam (1630) | Won 2-1 | +171696 |
| 13standard | 1058 | Pordes, Casey (1814) | Lost 1-2 | -151681 |
| 14standard | 1080 | Ellis, Bennett (1672) | Won 2-1 | +171698 |
| 15standard | 1061 | Webb, Justin (1570) | Won 2-0 | +161714 |
| top | average opponent: 1683record: 9-4-1 | new rating: 1714 | ||
| Grand Prix Seattle 2018 (legacy) (legacy) | starting rating: 1649 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 115 | Velasco, Miguel (1501) | Lost 0-2 | -211628 |
| 3legacy | 470 | Zolovick, Kud (1447) | Won 2-1 | +151643 |
| 4legacy | 375 | Skippen, Will (1676) | Won 2-0 | +191662 |
| 5legacy | 219 | Stout, Andy (1649) | Lost 1-2 | -191643 |
| 6legacy | 312 | Mee, Jerry (1477) | Lost 0-2 | -211622 |
| top | average opponent: 1550record: 2-3 | new rating: 1622 | ||
| Grand Prix Oklahoma City 2017 (modern) | starting rating: 1628 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 147 | Love, Aaron (1518) | Lost 1-2 | -201608 |
| 3modern | 310 | Rivera, Robert (1586) | Lost 0-2 | -181590 |
| 4modern | 437 | Ingram, Nickolas (1538) | Won 2-1 | +171607 |
| 5modern | 382 | Webb, Jack (1505) | Won 2-1 | +161623 |
| 6modern | 239 | Higganbotham, Andrew (1522) | Won 2-1 | +161639 |
| 7modern | 183 | Mellish, James (1610) | Lost 0-2 | -181621 |
| 8modern | 331 | Nance, Will (1541) | Won 2-0 | +161637 |
| 9modern | 201 | Edwards, Jace (1556) | Won 2-0 | +171654 |
| 10modern | 145 | Etters, Tyler (1540) | Won 2-1 | +161670 |
| 11modern | 79 | Rice, Remington (1646) | Won 2-0 | +171687 |
| 12modern | 95 | Passapera, Abraham (1575) | Lost 0-2 | -201667 |
| 13modern | 103 | Alford, Gerrick (1583) | Won 2-1 | +171684 |
| 14modern | 76 | Hicks, Jackson (1871) | Lost 1-2 | -151669 |
| 15modern | 112 | Brakefield, Erik (1558) | Lost 1-2 | -201649 |
| top | average opponent: 1582record: 8-6 | new rating: 1649 | ||
| Grand Prix Denver 2017 (HOU standard) | starting rating: 1608 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 109 | [anonymous] | Won 2-0 | +161624 |
| 3standard | 3 | Desimone, Carmine (1535) | Won 2-0 | +161640 |
| 4standard | 116 | Russell, Marco (1540) | Lost 1-2 | -201620 |
| 5standard | 241 | Whaley, Jerry (1675) | Lost 1-2 | -171603 |
| 6standard | 306 | Ferguson, Josh (1477) | Won 2-0 | +161619 |
| 7standard | 160 | Smith, Barry (1775) | Won 2-0 | +211640 |
| 8standard | 124 | Struck, Michael (1451) | Lost 0-2 | -221618 |
| 9standard | 158 | Donahoo, Miciah (1503) | Won 2-1 | +161634 |
| 10standard | 170 | Lynge, Alex (1516) | Won 2-0 | +161650 |
| 11standard | 117 | Hibbard, Dalton (1637) | Lost 1-2 | -181632 |
| 12standard | 131 | Preston, Brian (1528) | Lost 0-2 | -201612 |
| 13standard | 126 | Kirby, Zachary (1587) | Won 2-0 | +181630 |
| 14standard | 98 | Eakin, Michael (1593) | Won 2-1 | +171647 |
| 15standard | 97 | Bushong, Justus (1608) | Lost 0-2 | -191628 |
| top | average opponent: 1566record: 8-6 | new rating: 1628 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1532 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 614 | Maune, Sarah (1411) | Won 2-0 | +161548 |
| 3modern | 373 | Sellers, Michael (1646) | Lost 0-2 | -161532 |
| 4modern | 559 | Blake, Amber (1354) | Lost 1-2 | -211511 |
| 5modern | 895 | Nakayama, Christopher (1499) | Won 2-0 | +181529 |
| 6modern | 720 | Bormet, Aaron (1369) | Won 2-1 | +151544 |
| 7modern | 656 | Lincoln, Robert (1553) | Won 2-1 | +181562 |
| 8modern | 188 | Hong, Sung-Il (1497) | Lost 1-2 | -191543 |
| 9modern | 486 | Armstrong, Sean (1564) | Won 2-0 | +181561 |
| 10modern | 236 | Stewart, Brad (1586) | Won 2-0 | +191580 |
| 11modern | 326 | Weitz, Benjamin (1823) | Won 2-1 | +221602 |
| 12modern | 137 | Garcia Gonzalez, Sergio (1847) | Lost 1-2 | -141588 |
| 13modern | 211 | Janasiewicz, Jason (1743) | Won 2-0 | +211609 |
| 14modern | 120 | Cole, Bryan (1482) | Lost 1-2 | -201589 |
| 15modern | 188 | Perez, Alex (1633) | Won 2-0 | +191608 |
| top | average opponent: 1572record: 9-5 | new rating: 1608 | ||
| Grand Prix Las Vegas 2017 (legacy) (legacy) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 59 | Thomas, Tyler (1500) | Lost 0-2 | -191520 |
| 3legacy | 2154 | Lake, Marshall (1535) | Won 2-1 | +181538 |
| 4legacy | 401 | Niazi, Xander (1305) | Lost 0-2 | -221516 |
| 5legacy | 932 | Burgess, Dayton (1499) | Won 2-0 | +181534 |
| 6legacy | 521 | Simoncic, Brandon (1526) | Won 2-0 | +181552 |
| 7legacy | 362 | Knab, Julian (1633) | Lost 1-2 | -171535 |
| 8legacy | 526 | Rasmussen, Ron (1424) | Won 2-1 | +161551 |
| 9legacy | 351 | Kutcher, Aidan (1515) | Lost 1-2 | -191532 |
| top | average opponent: 1492record: 4-4 | new rating: 1532 | ||
| Grand Prix Denver 2016 (KLD standard) | starting rating: 1451 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 377 | Anderson, Cody (1488) | Won 2-1 | +191470 |
| 2standard | 269 | Herrera, Daniel (1318) | Won 2-1 | +151485 |
| 3standard | 54 | Chieng, Lawrence (1499) | Won 2-0 | +181503 |
| 4standard | 145 | Severa, Matt (1877) | Won 2-0 | +251528 |
| 5standard | 48 | Smith, Robert RC (1696) | Won 0-0 | +211549 |
| 6standard | 25 | Alspach, Matthew (1489) | Lost 1-2 | -191530 |
| 7standard | 63 | Trojan, Jay (1835) | Won 2-1 | +231553 |
| 8standard | 28 | Wescoe, Craig (2095) | Lost 0-2 | -91544 |
| 9standard | 121 | Birrell, Ian (1740) | Lost 1-2 | -141530 |
| 10standard | 136 | Petersen, Ben (1605) | Lost 1-2 | -171513 |
| 11standard | 193 | Nelson, Colleen (1557) | Won 2-1 | +191532 |
| 12standard | 148 | Hurtado, Patrick (1563) | Lost 1-2 | -181514 |
| 13standard | 150 | Higley, Michael (1532) | Won 2-0 | +191533 |
| 14standard | 112 | Jianu, Michael (1648) | Won 2-0 | +201553 |
| 15standard | 92 | Severson, Eric (1777) | Lost 1-2 | -141539 |
| top | average opponent: 1648record: 9-6 | new rating: 1539 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 134 | Johnston, Patrick (1519) | Lost 1-2 | -171469 |
| 3sealed | 358 | Lesser, Shane (1493) | Lost 0-2 | -181451 |
| top | average opponent: 1506record: 0-2 | new rating: 1451 | ||
| Grand Prix Denver 2015 (KTK standard) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 14 | Walterscheid, Corby (1616) | Won 2-1 | +201522 |
| 4standard | 59 | Jansekok, Ryan D (1556) | Lost 0-2 | -181504 |
| 5standard | 262 | Austin, Brian (1484) | Won 2-0 | +181522 |
| 6standard | 68 | Nelson, Seth (1486) | Lost 1-2 | -191503 |
| 7standard | 158 | Lahman, Faessal (1535) | Lost 1-2 | -171486 |
| top | average opponent: 1535record: 2-3 | new rating: 1486 | ||
| Grand Prix Denver 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 175 | Hudson, Michael (1470) | Won 2-0 | +171517 |
| 2block | 147 | Yeates, Kyle (1500) | Lost 1-2 | -181499 |
| 3block | 177 | Lourie, Raine (1480) | Won 2-1 | +181517 |
| 4block | 159 | West, Alexander (1815) | Lost 0-2 | -131504 |
| 5block | 202 | Doong, Allen (1424) | Won 2-0 | +171521 |
| 6block | 127 | Conrad, Michael (1471) | Lost 1-2 | -191502 |
| top | average opponent: 1527record: 3-3 | new rating: 1502 | ||