Kumasaka, Shotaro
Current rating: 1596
Record: 13-12-1 (GP) / 8-7 (professional)
| Innistrad Championship (MTGA mixed) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1historic | 101 | Takahashi, Yuta (2211) | Lost 0-2 | -71498 |
| 2historic | 64 | Shiraishi, Makoto (1529) | Lost 0-2 | -181480 |
| 3historic | 125 | Nomiya, Yohei (1685) | Won 2-1 | +221502 |
| 4standard | 65 | Oswald, Kenneth (1432) | Won 2-1 | +171519 |
| 5standard | 82 | Avesani, Fabio (1512) | Won 2-1 | +181537 |
| 6standard | 60 | Steuer, Nathan (1972) | Lost 1-2 | -111526 |
| 7standard | 57 | Wiktorzak, Piotr (1855) | Won 2-0 | +241550 |
| 8historic | 39 | Farjat, Jair (1719) | Won 2-0 | +211571 |
| 9historic | 37 | Nielsen, Simon (1948) | Lost 0-2 | -111560 |
| 10historic | 37 | Moreira, Joao (1902) | Lost 0-2 | -121548 |
| 11historic | 49 | Tsumura, Kenji (1930) | Won 2-1 | +241572 |
| 12standard | 34 | Magni, Luca (1999) | Lost 0-2 | -101562 |
| 13standard | 46 | Wada, Atsushi (1728) | Won 2-1 | +211583 |
| 14standard | 48 | Nelson, Brad (1941) | Won 2-0 | +241607 |
| 15standard | 30 | Juza, Martin (1994) | Lost 0-2 | -111596 |
| top | average opponent: 1824record: 8-7 | new rating: 1596 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1527 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 574 | Hayashi, Masataka (1310) | Lost 0-2 | -221505 |
| top | record: 0-1 | new rating: 1505 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 683 | Saito, Kensuke (1500) | Lost 0-2 | -201549 |
| 2standard | 1095 | Kiyohara, Daichi (1491) | Won 2-1 | +171566 |
| 3standard | 841 | Katagiri, Keisuke (1432) | Draw 1-1 | -21564 |
| 4standard | 1089 | Pannell, Thomas (1558) | Lost 0-2 | -181546 |
| 5standard | 1276 | Hirano, Kai (1485) | Lost 0-2 | -191527 |
| top | average opponent: 1493record: 1-3-1 | new rating: 1527 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1616 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 532 | Takuya, Andou (1533) | Won 2-1 | +171633 |
| 4sealed | 8 | Tazawa, Kazuho (1531) | Lost 1-2 | -201613 |
| 5sealed | 195 | Fujiwara, Ryoji (1426) | Lost 0-2 | -211592 |
| 6sealed | 697 | Dortman, Igor (1487) | Lost 1-2 | -201572 |
| 7sealed | 592 | Nakamura, Hiromu (1496) | Won 2-0 | +161588 |
| 8sealed | 488 | Oki, Hiroki (1490) | Lost 1-2 | -191569 |
| top | average opponent: 1494record: 2-4 | new rating: 1569 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 443 | Sakagami, Tsuyoshi (1500) | Won 2-0 | +181518 |
| 2sealed | 17 | Adikoesoemo, Austein (1423) | Won 2-0 | +161534 |
| 3sealed | 237 | Ohashi, Kentarou (1539) | Won 2-1 | +181552 |
| 4sealed | 46 | Kawachi, Yusuke (1675) | Won 2-0 | +211573 |
| 5sealed | 40 | Kishimoto, Nobuto (1540) | Won 2-0 | +171590 |
| 6sealed | 21 | Fukuoka, Sou (1572) | Lost 0-2 | -181572 |
| 7sealed | 77 | Ishida, Shinpei (1573) | Won 2-1 | +181590 |
| 8sealed | 27 | Sibata, Kouji (1610) | Won 2-0 | +181608 |
| 9sealed | 12 | Yamazaki, Yuuki (1759) | Lost 0-2 | -151593 |
| 10draft | 2 | Yamaoka, Keita (1568) | Won 2-0 | +171610 |
| 11draft | 72 | Ishida, Shinpei (1612) | Won 2-0 | +181628 |
| 12draft | 106 | Nomoto, Hidetaka (1671) | Lost 1-2 | -171611 |
| 13draft | 86 | Takeuchi, Ryota (1875) | Won 2-1 | +231634 |
| 14draft | 28 | Fukuda, Yuuki (1667) | Lost 0-2 | -181616 |
| 15draft | 82 | Heng, Chye Hwee (1829) | ID | 01616 |
| top | average opponent: 1628record: 10-4-1 | new rating: 1616 | ||