Sakamoto, Naoki
Current rating: 1295
Record: 23-40-1 (GP) / 1-4 (professional)
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1366 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 231 | Yoshimoto, Takashi (1348) | Lost 1-2 | -191347 |
| 2legacy | 534 | Gouda, Kento (1482) | Lost 0-2 | -151332 |
| 3legacy | 671 | Nishida, Masahiro (1464) | Won 2-0 | +201352 |
| 4legacy | 602 | Seta, Mitsuru (1490) | Lost 1-2 | -151337 |
| 5legacy | 577 | Yoshida, Kazushi (1826) | Lost 1-2 | -101327 |
| 6legacy | 549 | Takahashi, Hiroki (1442) | Lost 0-2 | -161311 |
| 7legacy | 514 | Yokoo, Kanta (1445) | Lost 0-2 | -161295 |
| top | average opponent: 1500record: 1-6 | new rating: 1295 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1404 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 445 | Takahashi, Ryunosuke (1382) | Lost 1-2 | -181386 |
| 2legacy | 650 | Takeda, Satoru (1529) | Won 2-0 | +201406 |
| 3legacy | 700 | Kashima, Akihiro (1689) | Lost 1-2 | -131393 |
| 4legacy | 1062 | Suzuki, Kiyofumi (1449) | Won 2-1 | +191412 |
| 5legacy | 852 | Kimura, Shoji (1521) | Lost 1-2 | -161396 |
| 6legacy | 779 | Matsushige, Masataka (1483) | Lost 1-2 | -161380 |
| 7legacy | 934 | Ikeda, Takeaki (1384) | Won 2-0 | +181398 |
| 8legacy | 804 | Matsumura, Asuka (1481) | Lost 0-2 | -171381 |
| 9legacy | 695 | Kawasaki, Hideaki (1494) | Lost 1-2 | -151366 |
| top | average opponent: 1490record: 3-6 | new rating: 1366 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1393 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 665 | Okamoto, Kentaro (1500) | Lost 1-2 | -161377 |
| 2legacy | 805 | Maeyama, Yuuhei (1462) | Won 2-0 | +201397 |
| 3legacy | 794 | Sorida, Kazuki (1520) | Won 2-1 | +201417 |
| 4legacy | 642 | Hirata, Koutatsu (1519) | Lost 0-2 | -161401 |
| 5legacy | 825 | Hosomi, Kyouhei (1517) | Lost 1-2 | -161385 |
| 6legacy | 799 | Katamine, Kentarou (1436) | Won 2-0 | +191404 |
| top | average opponent: 1492record: 3-3 | new rating: 1404 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1343 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 113 | Nitta, Yuki (1560) | Won 2-0 | +221365 |
| 2extended | 62 | Yoshimori, Sho (1692) | Lost 1-2 | -121353 |
| 3extended | 131 | Komatsu, Satoshi (1668) | Won 2-1 | +231376 |
| 4extended | 160 | Koyama, Tetsuo (1470) | Lost 1-2 | -161360 |
| 5extended | 245 | Iwaki, Hiroyuki (1486) | Lost 1-2 | -161344 |
| 6extended | 234 | Sasaki, Tsutomu (1608) | Won 2-0 | +231367 |
| 7extended | 175 | Yoshida, Shinsuke (1453) | Won 2-1 | +201387 |
| 8extended | 136 | Usami, Taro (1644) | Won 2-1 | +221409 |
| 9extended | 95 | Hiramatsu, Mamoru (1537) | Lost 0-2 | -161393 |
| top | average opponent: 1569record: 5-4 | new rating: 1393 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1348 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 278 | Sai, Muneaki (1500) | Lost 0-2 | -151333 |
| 2standard | 288 | Yamada, Hiroki (1470) | Won 2-0 | +201353 |
| 3standard | 214 | Itou, Takanori (1566) | Lost 0-2 | -141339 |
| 4standard | 346 | Oyama, Hiroki (1428) | Won 2-0 | +201359 |
| 5standard | 301 | Endo, Jun'Ichi (1497) | Lost 1-2 | -161343 |
| top | average opponent: 1492record: 2-3 | new rating: 1343 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1387 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 201 | Mori, Mitsuhiro (1486) | Won 2-1 | +191406 |
| 2extended | 32 | Komatsu, Satoshi (1518) | Lost 1-2 | -161390 |
| 3extended | 371 | Weiskotten, Brendan (1601) | Lost 1-2 | -141376 |
| 4extended | 362 | Sekimoto, Kandai (1482) | Lost 0-2 | -161360 |
| 5extended | 426 | Kobayashi, Shigehisa (1333) | Won 2-1 | +181378 |
| 6extended | 333 | Manaka, Akihiro (1479) | Won 2-0 | +191397 |
| 7extended | 245 | Yamakawa, Youichirou (1526) | Lost 0-2 | -151382 |
| 8extended | 169 | Katou, Akihiro (1528) | Lost 1-2 | -161366 |
| 9extended | 152 | Kobayashi, Jun (1337) | Lost 0-2 | -181348 |
| top | average opponent: 1477record: 3-6 | new rating: 1348 | ||
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1377 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 116 | Kubomura, Masaaki (1378) | Lost 0-2 | -181359 |
| 2sealed | 176 | Abe, Genta (1587) | Won 2-0 | +221381 |
| 3sealed | 150 | Furutate, Mikihiko (1466) | Lost 0-2 | -161365 |
| 4sealed | 210 | Aoyanagi, Toshihiko (1484) | Won 2-0 | +201385 |
| 5sealed | 156 | Hirota, Shinji (1448) | Won 2-1 | +191404 |
| 6sealed | 147 | Watabe, Kazunori (1436) | Lost 0-2 | -171387 |
| top | average opponent: 1467record: 3-3 | new rating: 1387 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1404 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 164 | Suzuki, Takaaki (1719) | Lost 1-2 | -131391 |
| 2extended | 170 | Kimura, Kazuaki (1611) | Lost 0-2 | -141377 |
| top | average opponent: 1665record: 0-2 | new rating: 1377 | ||
| Pro Tour Kuala Lumpur 2008 (MOR draft) | starting rating: 1426 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 46 | Kunzler, Matthias (1837) | Lost 1-2 | -111415 |
| 2draft | 71 | Nesi, Eugenio (1662) | Won 2-0 | +231438 |
| 3draft | 111 | Ang, Junyang (1709) | Lost 0-0 | -141424 |
| 4draft | 82 | Yasooka, Shota (1924) | Lost 0-2 | -91415 |
| 6draft | 66 | Postema, Bas (1803) | Lost 0-2 | -111404 |
| top | average opponent: 1787record: 1-4 | new rating: 1404 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 105 | Mishima, Yuuichirou (1520) | Lost 0-2 | -171461 |
| 2sealed | 227 | Kayama, Akira (1487) | Lost 1-2 | -171444 |
| 3sealed | 224 | Takada, Ryo (1465) | Lost 1-2 | -181426 |
| top | average opponent: 1491record: 0-3 | new rating: 1426 | ||
| Grand Prix Okayama 2004 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 93 | Arakane, Daisuke (1461) | Draw 1-1 | -11499 |
| 2extended | 101 | Miyamoto, Satoshi (1492) | Lost 1-2 | -181481 |
| 3extended | 155 | Ashida, Jun (1483) | Won 2-0 | +181499 |
| 4extended | 132 | Toochika, Takayuki (1531) | Won 2-0 | +191518 |
| 5extended | 91 | Yoshida, Nobuyoshi (1516) | Lost 0-2 | -181500 |
| 6extended | 121 | Yamada, Uchu (1440) | Lost 0-2 | -191481 |
| 7extended | 110 | Takayanagi, Tooru (1466) | Lost 1-2 | -191462 |
| 8extended | 101 | Miyake, Takaaki (1353) | Won 2-0 | +161478 |
| top | average opponent: 1468record: 3-4-1 | new rating: 1478 | ||