Ikeda, Naoto
Current rating: 1439
Record: 62-89-5
- 2001
- 2003
- 2004
- 2009
- 2010
- 2011
- 2012
- 2013
- 2014
- 2015
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1285 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2341 | Li, Way (1500) | Won 2-0 | +211306 |
| 2sealed | 2155 | Masamiti, Sugawara (1518) | Won 2-0 | +221328 |
| 3sealed | 2071 | Ueda, Takao (1487) | Lost 1-2 | -151313 |
| 4sealed | 2131 | Hajime, Shogo (1520) | Won 2-0 | +221335 |
| 5sealed | 2156 | Nakaoka, Koshiro (1575) | Won 2-1 | +221357 |
| 6sealed | 2109 | Suzuki, Ryuuichi (1599) | Won 2-0 | +221379 |
| 7sealed | 2026 | Soh, Joe (1907) | Won 2-0 | +271406 |
| 8sealed | 2023 | Sato, Keisuke (1801) | Lost 0-2 | -111395 |
| 9sealed | 2076 | Aoki, Masahiro (1644) | Won 2-1 | +231418 |
| 10draft | 175 | Hu, Shaofan (1605) | Won 2-1 | +211439 |
| 11draft | 14 | Iso, Toshiharu (1579) | Lost 1-2 | -161423 |
| 12draft | 181 | Ozawa, Takeshi (1817) | Lost 1-2 | -111412 |
| 13draft | 108 | Ootani, Masashi (1488) | Won 2-0 | +201432 |
| 14draft | 4 | Nakamura, Keisuke (1676) | Lost 0-2 | -141418 |
| 15draft | 154 | Matsuda, Yuichi (1579) | Won 2-1 | +211439 |
| top | average opponent: 1620record: 10-5 | new rating: 1439 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1327 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 162 | Kawamoto, Takashi (1500) | Lost 0-2 | -151312 |
| 2legacy | 339 | Isono, Kaoru (1482) | Lost 0-2 | -151297 |
| 3legacy | 469 | Kiyokane, Yoshifumi (1409) | Lost 0-2 | -161281 |
| 4legacy | 451 | Ebara, Satoshi (1446) | Won 2-1 | +211302 |
| 5legacy | 399 | Kubomi, Yusuke (1338) | Lost 0-2 | -171285 |
| top | average opponent: 1435record: 1-4 | new rating: 1285 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1274 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 334 | Yoshida, Masahiro (1500) | Lost 0-2 | -141260 |
| 2sealed | 406 | Masaoka, Satoru (1485) | Won 2-0 | +221282 |
| 3sealed | 409 | Sakurai, Shintarou (1550) | Won 2-0 | +231305 |
| 4sealed | 182 | Kobayashi, Masanori 1290 (1413) | Lost 1-2 | -161289 |
| 5sealed | 306 | Takamichi, Hiroyuki (1498) | Won 2-0 | +211310 |
| 6sealed | 213 | Tanaka, Kouichi (1738) | Won 2-0 | +261336 |
| 7sealed | 189 | Berka, David (1529) | Won 2-0 | +211357 |
| 8sealed | 103 | Nakaya, Shinya (1504) | Lost 1-2 | -151342 |
| 9sealed | 108 | Shang, Shuwen (1493) | Lost 0-2 | -151327 |
| top | average opponent: 1523record: 5-4 | new rating: 1327 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1295 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 147 | Saitou, Kazuyuki (1660) | Lost 0-2 | -111284 |
| 2modern | 447 | Miyazaki, Kensuke (1395) | Lost 0-2 | -161268 |
| 3modern | 529 | Yoshida, Mitsutaka (1085) | Lost 1-2 | -221246 |
| 4modern | 539 | Kojo, Kaoru (1437) | Won 2-0 | +221268 |
| 5modern | 456 | Omori, Yoshifumi (1464) | Won 2-0 | +211289 |
| 6modern | 448 | Sakagami, Taichi (1429) | Lost 0-2 | -151274 |
| top | average opponent: 1412record: 2-4 | new rating: 1274 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1242 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 760 | Senda, Masamitu (1500) | Lost 1-2 | -131229 |
| 2standard | 745 | Aihara, Shogaku (1605) | Won 2-1 | +241253 |
| 3standard | 772 | Kimura, Kosuke (1481) | Lost 1-2 | -141239 |
| 4standard | 826 | Kisanuki, Akira (1485) | Won 2-1 | +231262 |
| 5standard | 750 | Nakazawa, Yusuke (1261) | Lost 1-2 | -181244 |
| 6standard | 793 | Hayashi, Tomoki (1433) | Lost 0-2 | -151229 |
| 7standard | 784 | Kishibata, Kazuya (1463) | Won 2-0 | +221251 |
| 8standard | 738 | Uchiyama, Ryohei (1485) | Won 2-1 | +231274 |
| 9standard | 759 | Kobayashi, Jun0116 (1478) | Won 2-0 | +211295 |
| top | average opponent: 1466record: 5-4 | new rating: 1295 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1263 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 213 | Kurino, Tomohiro (1500) | Lost 0-2 | -141249 |
| 2standard | 382 | Inoue, Masataka (1359) | Won 2-1 | +201269 |
| 3standard | 458 | Ikeda, Takumi (1465) | Won 2-1 | +221291 |
| 4standard | 177 | Usukura, Takumi (1503) | Lost 0-2 | -141277 |
| 5standard | 325 | Imai, Satoshi (1715) | Lost 1-2 | -111266 |
| 6standard | 405 | Kaneko, Takashi (1484) | Lost 0-2 | -141252 |
| 7standard | 397 | Ishifuro, Yuichi (1465) | Lost 0-2 | -141238 |
| 8standard | 341 | Mihara, Ryo (1399) | Won 2-1 | +211259 |
| 9standard | 277 | Sasaki, Masaya (1325) | Lost 0-2 | -171242 |
| top | average opponent: 1468record: 3-6 | new rating: 1242 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1296 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 855 | Ueno, Shinichi (1675) | Lost 1-2 | -121284 |
| 3sealed | 906 | Nakamura, Yuichiro (1499) | Lost 0-2 | -141270 |
| 4sealed | 1056 | Asami, Masakazu (1449) | Lost 1-2 | -151255 |
| 5sealed | 1061 | Takahashi, Takuya (1435) | Won 2-0 | +211276 |
| 6sealed | 991 | Shu, Peter (1543) | Lost 0-2 | -131263 |
| top | average opponent: 1520record: 1-4 | new rating: 1263 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1229 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 150 | Inoue, Masashi (1343) | Lost 0-2 | -161213 |
| 3standard | 514 | Tabuchi, Youichi (1393) | Won 2-0 | +211234 |
| 4standard | 412 | Hosokai, Hideto (1501) | Lost 0-2 | -131221 |
| 5standard | 560 | Hama, Takayuki (1555) | Won 2-0 | +231244 |
| 6standard | 480 | Boku, Takashi (1388) | Won 2-1 | +211265 |
| 7standard | 340 | Kaga, Hiroyuki (1504) | Won 2-0 | +221287 |
| 8standard | 233 | Tsuboyama, Shuta (1521) | Lost 1-2 | -131274 |
| 9standard | 204 | Kimura, Shigeki (1496) | Won 2-0 | +221296 |
| top | average opponent: 1463record: 5-3 | new rating: 1296 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1224 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 101 | Tsubouchi, Kuniya (1517) | Won 2-1 | +231247 |
| 3modern | 188 | Saito, Tomoya (1642) | Lost 0-2 | -111236 |
| 4modern | 196 | Naka, Yoshihiro (1593) | Lost 0-2 | -111225 |
| 5modern | 542 | Ootani, Yuusuke (1500) | Won 2-1 | +221247 |
| 6modern | 366 | Kinugasa, Satoshi (1497) | Lost 1-2 | -131234 |
| 7modern | 380 | Itou, Masayoshi (1518) | Won 2-1 | +231257 |
| 8modern | 259 | Takata, Mutsumu (1420) | Lost 0-2 | -151242 |
| 9modern | 263 | Koshiishi, Tadahito (1501) | Lost 1-2 | -131229 |
| top | average opponent: 1524record: 3-5 | new rating: 1229 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1249 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 81 | Chikanari, Kouichi (1500) | Won 2-1 | +231272 |
| 2sealed | 165 | Ishikawa, Shou (1529) | Lost 1-2 | -141258 |
| 3sealed | 333 | Oshima, Yuki (1479) | Lost 0-2 | -141244 |
| 4sealed | 381 | Durbidge, Levi (1483) | Lost 0-2 | -141230 |
| 5sealed | 438 | Itou, Shin'ya (1462) | Lost 0-2 | -141216 |
| 6sealed | 394 | Ariyoshi, Daisuke (1477) | Won 2-0 | +231239 |
| 7sealed | 321 | Nishiwaki, Yousuke (1414) | Lost 0-2 | -151224 |
| top | average opponent: 1478record: 2-5 | new rating: 1224 | ||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1311 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 242 | Mantani, Keiji (1563) | Lost 0-2 | -131298 |
| 2standard | 203 | Saitou, Eiji (1572) | Won 2-1 | +231321 |
| 3standard | 243 | Sada, Kazutaka (1410) | Won 2-1 | +191340 |
| 4standard | 181 | Hasegawa, Tsuguto (1415) | Lost 0-2 | -161324 |
| 5standard | 266 | Yonamine, Hiroki (1500) | Lost 1-2 | -151309 |
| 6standard | 275 | Onizuka, Makoto (1482) | Lost 1-2 | -151294 |
| 7standard | 231 | Takeda, Kazuki (1504) | Lost 1-2 | -141280 |
| 8standard | 202 | Yoshida, Shinsuke (1388) | Lost 1-2 | -161264 |
| 9standard | 168 | Matsushima, Kouji (1450) | Lost 1-2 | -151249 |
| top | average opponent: 1476record: 2-7 | new rating: 1249 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1373 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 189 | Kitsunezuka, Masanori (1480) | Lost 0-2 | -161357 |
| 2standard | 289 | Moriya, Daisuke (1596) | Lost 0-2 | -141343 |
| 3standard | 321 | Yamagata, Yutaro (1464) | Lost 0-2 | -161327 |
| 4standard | 416 | Narita, Shuuhei (1446) | Lost 0-2 | -161311 |
| top | average opponent: 1497record: 0-4 | new rating: 1311 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1422 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 277 | Ohshiba, Atsushi (1500) | Lost 0-2 | -161406 |
| 2extended | 322 | Matsuoka, Takayuki (1452) | Draw 1-1 | +11407 |
| 3extended | 397 | Hama, Kirito (1485) | Lost 0-2 | -171390 |
| 4extended | 472 | Takeshita, Yoshiyasu (1321) | Lost 0-2 | -191371 |
| 5extended | 435 | Hirose, Daichi (1415) | Lost 0-2 | -171354 |
| 6extended | 374 | Hashimoto, Kouichi (1410) | Won 2-0 | +191373 |
| top | average opponent: 1430record: 1-4-1 | new rating: 1373 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1346 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 87 | Ishiguro, Satoshi (1500) | Won 2-1 | +211367 |
| 2sealed | 76 | Yamamoto, Hiroshi (1518) | Lost 0-2 | -151352 |
| 3sealed | 111 | Ogihara, Toshiki (1368) | Won 2-1 | +181370 |
| 4sealed | 111 | Yokokura, Takeshi (1469) | Won 2-1 | +201390 |
| 5sealed | 123 | Ichikawa, Kazuyuki (1608) | Won 2-0 | +221412 |
| 6sealed | 87 | Shoji, Kenta (1615) | Lost 1-2 | -151397 |
| 7sealed | 71 | Ueki, Yuuya (1535) | Lost 0-2 | -151382 |
| 8sealed | 111 | Takeuchi, Ryota (1474) | Won 2-0 | +191401 |
| 9sealed | 73 | Tanaka, Kouichi (1566) | Won 2-1 | +211422 |
| top | average opponent: 1517record: 6-3 | new rating: 1422 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1364 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 7 | Shirahama, Naoki (1500) | Lost 1-2 | -161348 |
| 2extended | 197 | Takahashi, Tatsurou (1482) | Draw 0-0 | +31351 |
| 3extended | 201 | Ooshima, Junji (1546) | Lost 1-2 | -151336 |
| 4extended | 247 | Akita, Naoto (1472) | Lost 0-2 | -151321 |
| 5extended | 235 | Asakawa, Takahiro (1439) | Draw 1-1 | +21323 |
| 6extended | 206 | Kobayashi, Shigehisa (1378) | Won 2-0 | +191342 |
| 7extended | 157 | Mochizuki, Kazuhiro (1453) | Lost 0-2 | -161326 |
| 8extended | 136 | tomida, ryo (1446) | Won 2-1 | +201346 |
| top | average opponent: 1464record: 2-4-2 | new rating: 1346 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1425 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 92 | Harada, Yoshio (1503) | Won 2-1 | +201445 |
| 2sealed | 73 | Uotsu, Atsushi (1497) | Won 2-0 | +191464 |
| 3sealed | 38 | Takagi, Yui (1503) | Lost 0-2 | -181446 |
| 4sealed | 101 | Ito, Ken (1628) | Lost 0-2 | -141432 |
| 5sealed | 163 | Smith, Alexander O (1498) | Lost 0-2 | -171415 |
| 6sealed | 172 | Yasuda, Takeshi (1500) | Lost 0-2 | -171398 |
| 7sealed | 160 | Nagashima, Yuji (1415) | Lost 1-2 | -171381 |
| 8sealed | 5 | Tanabe, Yasuyuki (1451) | Lost 0-2 | -171364 |
| top | average opponent: 1499record: 2-6 | new rating: 1364 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 250 | Furudate, Yasuomi (1500) | Lost 0-2 | -171456 |
| 2standard | 365 | Ichikawa, Kazuyuki (1566) | Won 2-1 | +201476 |
| 3standard | 298 | Hasegawa, Hironobu (1500) | Lost 1-2 | -181458 |
| 4standard | 352 | Yoshikawa, Hiroshi (1542) | Won 2-1 | +201478 |
| 5standard | 249 | Deguchi, Koya (1503) | Lost 1-2 | -181460 |
| 6standard | 309 | Kanesiro, Yasuaki (1436) | Lost 0-2 | -181442 |
| 7standard | 280 | Tawa, Atsushi (1481) | Won 2-1 | +181460 |
| 8standard | 209 | Koshiba, Norihiko (1479) | Lost 0-2 | -171443 |
| 9standard | 199 | Honda, Youichiro (1461) | Lost 1-2 | -181425 |
| top | average opponent: 1496record: 3-6 | new rating: 1425 | ||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 160 | Murayama, Yoshiyuki (1577) | Lost 1-2 | -161449 |
| 2sealed | 196 | Suginaka, Takaaki (1464) | Won 2-0 | +191468 |
| 3sealed | 148 | Domon, Yuki (1504) | Draw 1-1 | 01468 |
| 4sealed | 185 | Suzuki, Yuuji (1619) | Lost 0-2 | -151453 |
| 5sealed | 215 | Watanabe, Hiroyuki (1529) | Won 2-0 | +191472 |
| 6sealed | 161 | Hagiwara, Yoshitaka (1505) | Won 2-1 | +191491 |
| 7sealed | 113 | Ozaki, Hironori (1476) | Lost 0-2 | -181473 |
| 8sealed | 110 | Matsushita, Takashi (1506) | Draw 1-1 | 01473 |
| top | average opponent: 1523record: 3-3-2 | new rating: 1473 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 153 | Matsumura, Takehiko (1567) | Lost 1-2 | -171501 |
| 2block | 303 | Tanehashi, Shigeharu (1481) | Won 2-1 | +181519 |
| 3block | 259 | Tanaka, Jun (1500) | Lost 0-2 | -191500 |
| 4block | 297 | Okada, Seiji (1447) | Lost 0-2 | -191481 |
| 5block | 328 | Nakajima, Chikara (1584) | Lost 1-2 | -161465 |
| top | average opponent: 1516record: 1-4 | new rating: 1465 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 119 | Omichi, Nobuhito (1500) | Lost 0-2 | -181482 |
| 2block | 514 | Yoshida, Kosuke (1482) | Won 2-1 | +181500 |
| 3block | 334 | Morisaki, Nobuki (1482) | Lost 0-2 | -181482 |
| 4block | 520 | Saito, Juniichi (1481) | Won 2-0 | +181500 |
| 5block | 323 | Akiyoshi, Koichi (1517) | Lost 1-2 | -181482 |
| 6block | 443 | Oizaki, Takahiro (1481) | Won 2-0 | +181500 |
| 7block | 314 | Yasuda, Taiga (1500) | Won 2-0 | +181518 |
| 8block | 204 | Kobara, Shohei (1518) | Won 2-1 | +181536 |
| 9block | 166 | Ueno, Motohiro (1549) | Lost 0-2 | -181518 |
| top | average opponent: 1501record: 5-4 | new rating: 1518 | ||