Kamichika, Koji
Current rating: 1618
Record: 24-20-2
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 11 | Goldman, Gabriel (1446) | Won 2-0 | +161549 |
| 2sealed | 104 | Hawkins, Andrew (1592) | Won 2-1 | +191568 |
| 3sealed | 70 | Eichelberger, Gregory (1472) | Won 2-0 | +161584 |
| 4sealed | 182 | Pardee, Samuel (2083) | Won 2-1 | +271611 |
| 5sealed | 35 | Lucas, Orlando (1663) | Won 2-0 | +191630 |
| 6sealed | 23 | Mines, David (2013) | Won 2-1 | +241654 |
| 7sealed | 19 | Kassis, Eli (2056) | Lost 1-2 | -111643 |
| 8sealed | 55 | Orange, Gregory (1944) | Won 2-0 | +241667 |
| 9sealed | 24 | Cunniff, Raphael (1762) | Won 2-1 | +191686 |
| 10draft | 767 | Stern, Jon (1876) | Lost 0-2 | -141672 |
| 11draft | 747 | Bumpers, Jeremy (1578) | Lost 0-2 | -201652 |
| 12draft | 663 | Lachmann, Chris (1805) | Lost 0-2 | -151637 |
| 13draft | 725 | Bollard, Liam (1622) | Won 2-0 | +171654 |
| 14draft | 666 | Felicetti, Ted (1728) | Lost 1-2 | -161638 |
| 15draft | 740 | Calhoun, Christopher (1565) | Lost 0-2 | -201618 |
| top | average opponent: 1747record: 9-6 | new rating: 1618 | ||
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 606 | Chrisler, Lindsay (1500) | Won 2-0 | +181526 |
| 2sealed | 615 | Lux, Michael (1648) | Won 2-1 | +201546 |
| 3sealed | 569 | Lenkiu, Vinicius (1534) | Won 2-0 | +181564 |
| 4sealed | 632 | Owen, Zachary (1562) | Lost 0-2 | -181546 |
| 5sealed | 678 | Sepulveda, Daniel (1480) | Won 2-1 | +171563 |
| 6sealed | 717 | Lambaria, Joslyn (1686) | Lost 0-2 | -161547 |
| 7sealed | 707 | Calcano, Christian (1900) | Lost 1-2 | -121535 |
| 8sealed | 804 | Quicano, Luis (1539) | Lost 0-2 | -181517 |
| 9sealed | 841 | Combs, Brandon (1383) | Won 2-0 | +161533 |
| top | average opponent: 1581record: 5-4 | new rating: 1533 | ||
| Grand Prix Atlanta 2016 (KLD limited) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 545 | Ankney, Cody (1446) | Lost 1-2 | -191472 |
| 2sealed | 1096 | Montgomery, Kyle (1493) | Won 2-0 | +191491 |
| 3sealed | 973 | Martin, Evan (1500) | Lost 1-2 | -181473 |
| 4sealed | 1186 | Kurschner, Zachary (1473) | Won 2-0 | +181491 |
| 5sealed | 1059 | Chalmers, Steven (1509) | Lost 1-2 | -181473 |
| 6sealed | 1134 | Crooks, Benson (1482) | Won 2-0 | +181491 |
| 7sealed | 994 | Mender, Tyler (1499) | Draw 1-1 | 01491 |
| 8sealed | 953 | Murphy, Gareth (1457) | Won 2-0 | +181509 |
| 9sealed | 854 | Vinci, William (1469) | Draw 1-1 | -11508 |
| top | average opponent: 1481record: 4-3-2 | new rating: 1508 | ||
| Grand Prix Albuquerque 2016 (SOI limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 295 | Davey, Nicholas (1500) | Won 2-0 | +181484 |
| 2sealed | 187 | Rangitsch, Andrew (1611) | Lost 1-2 | -151469 |
| 3sealed | 504 | Piazza, Brett (1563) | Lost 0-2 | -171452 |
| 4sealed | 469 | Dominguez, Nicholas (1479) | Won 2-0 | +191471 |
| 5sealed | 355 | Eakin, Michael (1508) | Won 2-0 | +181489 |
| 6sealed | 332 | Herr, Paul (1639) | Lost 0-2 | -151474 |
| 7sealed | 348 | Taylor, Jared 2 (1533) | Won 2-0 | +191493 |
| 8sealed | 302 | Palacios, Herbert (1457) | Won 2-0 | +181511 |
| 9sealed | 165 | Kilburn, Brad (1433) | Lost 1-2 | -201491 |
| top | average opponent: 1525record: 5-4 | new rating: 1491 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2075 | Yamagishi, Hideaki (1407) | Won 2-0 | +161516 |
| 2sealed | 2208 | Kibe, Keisuke (1741) | Lost 0-2 | -141502 |
| 3sealed | 2297 | Brazil, Isaac (1469) | Lost 1-2 | -181484 |
| 4sealed | 2402 | Kobayashi, Akihiro (1477) | Lost 0-2 | -181466 |
| top | average opponent: 1523record: 1-3 | new rating: 1466 | ||