Ootubo, Masashi
Current rating: 1463
Record: 24-25 (GP) / 1-6 (professional)
| Players Tour Nagoya 2020 (pioneer) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 67 | Wu, Kuang (1534) | Lost 0-2 | -181518 |
| 2draft | 33 | Krishnan, Vignesh (1487) | Lost 1-2 | -191499 |
| 3draft | 69 | Kyo, Ifu (1719) | Lost 0-2 | -141485 |
| 4pioneer | 87 | Kabashima, Takuya (1575) | Lost 0-2 | -161469 |
| 6pioneer | 79 | Itou, Hayato (1492) | Won 2-0 | +181487 |
| 7pioneer | 65 | Mihara, Makihito (1895) | Lost 1-2 | -111476 |
| 8pioneer | 66 | Yamane, Naoto (1727) | Lost 1-2 | -131463 |
| top | average opponent: 1633record: 1-6 | new rating: 1463 | ||
| Grand Prix Singapore 2018 (DOM standard) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 127 | Wiriyaampon, Kampanart (1483) | Won 2-0 | +181508 |
| 2standard | 33 | Kang, Yameng (1367) | Lost 0-2 | -201488 |
| 3standard | 188 | Chen, Hsin Chuan Sean (1497) | Won 2-1 | +181506 |
| 4standard | 134 | Ma, Yiyuan (1624) | Won 2-0 | +201526 |
| 5standard | 50 | Nisitsukcharoen, Ravikorn (1542) | Won 2-1 | +181544 |
| 6standard | 38 | Sakai, Yoshitoki (1907) | Lost 0-2 | -111533 |
| 7standard | 122 | Lu, Bo (1714) | Lost 0-2 | -151518 |
| 8standard | 151 | Lim, Ho Hock Lucas (1523) | Won 2-0 | +181536 |
| top | average opponent: 1582record: 5-3 | new rating: 1536 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 147 | Motomura, Shigeru (1721) | Lost 1-2 | -151528 |
| 4standard | 372 | Shirakawa, Yuichiro (1458) | Won 2-1 | +171545 |
| 5standard | 467 | Sakurai, Yuuta (1455) | Lost 0-2 | -201525 |
| 6standard | 634 | Yokoyama, Takaya (1511) | Won 2-1 | +181543 |
| 7standard | 460 | Makino, Tatsuya (1465) | Lost 0-2 | -201523 |
| 8standard | 632 | Kamo, Keisuke (1537) | Lost 1-2 | -171506 |
| 9standard | 737 | Nakamoto, Kosuke (1649) | Lost 0-2 | -161490 |
| top | average opponent: 1542record: 2-5 | new rating: 1490 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 137 | Abe, Ken'Ichi (1542) | Won 2-1 | +201501 |
| 4legacy | 3 | Kaneko, Masayuki3656 (1540) | Won 2-0 | +181519 |
| 5legacy | 111 | Fukumoto, Hiroaki (1730) | Won 2-0 | +221541 |
| 6legacy | 35 | Hori, Masataka (1699) | Won 2-1 | +211562 |
| 7legacy | 32 | Oosaka, Yuusuke (1889) | Won 2-1 | +241586 |
| 8legacy | 12 | Toyota, Shimpei (1709) | Lost 1-2 | -161570 |
| 9legacy | 49 | Huang, Shun-Fa (1617) | Lost 0-2 | -171553 |
| 10legacy | 57 | Kawahama, Yoshikazu (1759) | Lost 1-2 | -151538 |
| 11legacy | 128 | Kobayashi, Kazutaka (1704) | Lost 0-2 | -151523 |
| 12legacy | 273 | Kawai, Emi (1446) | Won 2-1 | +171540 |
| 13legacy | 184 | Tsuji, Naoto (1590) | Won 2-0 | +191559 |
| 14legacy | 123 | Murakami, Toki (1656) | Lost 1-2 | -161543 |
| top | average opponent: 1657record: 7-5 | new rating: 1543 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 246 | Habu, Aritoshi (1535) | Won 2-0 | +191525 |
| 4standard | 199 | Hirayama, Shigetaka (1653) | Lost 1-2 | -161509 |
| 5standard | 278 | Ishino, Katsunori (1556) | Won 2-1 | +191528 |
| 6standard | 331 | Hirashima, Yuutarou (1775) | Lost 0-2 | -131515 |
| 7standard | 569 | Ogawa, Takumi (1460) | Won 2-1 | +171532 |
| 8standard | 282 | Akimoto, Daichi (1550) | Won 2-1 | +181550 |
| 9standard | 167 | Inoue, Daisuke (1513) | Lost 1-2 | -191531 |
| 10standard | 263 | Naitou, Hisashi (1596) | Lost 1-2 | -171514 |
| 11standard | 385 | Shimada, Masahiko (1650) | Lost 0-2 | -151499 |
| 12standard | 393 | Kuramoti, Syou (1528) | Lost 0-2 | -181481 |
| top | average opponent: 1582record: 4-6 | new rating: 1481 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 58 | Kawanishi, Naoki (1482) | Lost 0-2 | -181465 |
| 2sealed | 630 | Maeda, Takuma (1486) | Lost 1-2 | -171448 |
| 3sealed | 1263 | Isomura, Haruki (1462) | Won 2-1 | +181466 |
| 4sealed | 1152 | Sugisawa, Tsuyoshi (1522) | Lost 0-2 | -171449 |
| 5sealed | 1015 | Koide, Tomohide (1435) | Won 2-1 | +181467 |
| 6sealed | 946 | Kimura, Tatsuhiro (1485) | Won 2-1 | +181485 |
| 7sealed | 811 | Ebihara, Hirotaka (1587) | Won 2-1 | +201505 |
| 8sealed | 615 | Furukawa, Hiroki (1581) | Lost 0-2 | -171488 |
| 9sealed | 644 | Uchida, Kousuke (1502) | Won 2-0 | +181506 |
| top | average opponent: 1505record: 5-4 | new rating: 1506 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1096 | Umeda, Satoshi (1484) | Won 2-0 | +181518 |
| 2sealed | 1191 | Kochi, Daiki (1623) | Lost 0-2 | -161502 |
| 3sealed | 1106 | Yamamoto, Ryousuke (1482) | Lost 0-2 | -191483 |
| top | average opponent: 1529record: 1-2 | new rating: 1483 | ||