Arai, Ikki
Current rating: 1293
Record: 28-51
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1264 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 64 | Hirokawa, Tatsuya 1725 (1524) | Won 2-1 | +221286 |
| 2sealed | 460 | Kitahara, Hiroaki (1757) | Won 2-1 | +261312 |
| 3sealed | 253 | Otsu, Shuhei (1458) | Lost 1-2 | -151297 |
| 4sealed | 448 | Sugiyama, Kouichi (1434) | Won 2-1 | +211318 |
| 5sealed | 323 | Tinen, Kousuke (1690) | Lost 0-2 | -121306 |
| 6sealed | 659 | Oota, Yusuke (1599) | Lost 0-2 | -131293 |
| top | average opponent: 1577record: 3-3 | new rating: 1293 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1300 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 401 | Oyama, Masaru (1500) | Lost 1-2 | -151285 |
| 2modern | 940 | Kang, Jonghoon (1485) | Won 2-0 | +221307 |
| 3modern | 880 | Xue, Wei (1574) | Lost 1-2 | -131294 |
| 4modern | 937 | Ellis, Jordan (1481) | Lost 0-2 | -151279 |
| 5modern | 1016 | Yoshida, Kyoma (1426) | Lost 0-2 | -151264 |
| top | average opponent: 1493record: 1-4 | new rating: 1264 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1294 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 412 | Sashida, Tomoro (1619) | Lost 1-2 | -121282 |
| 2standard | 546 | Iseki, Ojiro (1620) | Lost 0-2 | -121270 |
| 3standard | 963 | Kitamura, Takuya (1455) | Won 2-1 | +211291 |
| 4standard | 740 | Umehara, Kei (1611) | Lost 0-2 | -121279 |
| 5standard | 840 | Fujiwara, Koichi (1430) | Won 2-1 | +211300 |
| top | average opponent: 1547record: 2-3 | new rating: 1300 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1268 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 102 | Nakajou, Naoto (1468) | Lost 0-2 | -141254 |
| 2sealed | 653 | Iijima, Satoshi (1482) | Lost 1-2 | -141240 |
| 3sealed | 1173 | Ejima, Kazuki (1542) | Won 2-0 | +231263 |
| 4sealed | 1071 | Shishikura, Masahiro (1447) | Won 2-0 | +211284 |
| 5sealed | 567 | Davis, Theodore (1566) | Won 2-1 | +231307 |
| 6sealed | 682 | Katou, Susumu (1588) | Lost 0-2 | -131294 |
| top | average opponent: 1515record: 3-3 | new rating: 1294 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1306 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 476 | Kasahara, Yusuke (1500) | Lost 1-2 | -151291 |
| 2modern | 892 | Makioka, Syuta (1482) | Lost 1-2 | -141277 |
| 3modern | 1309 | Arai, Shohei (1464) | Won 2-1 | +211298 |
| 4modern | 1203 | Egeyama, Tomoki (1470) | Lost 0-2 | -151283 |
| 5modern | 1101 | Kobayashi, Souma (1437) | Lost 1-2 | -151268 |
| top | average opponent: 1471record: 1-4 | new rating: 1268 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1347 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 335 | Hisamoto, Takashi (1502) | Lost 1-2 | -151332 |
| 2standard | 867 | Terao, Manato (1518) | Lost 1-2 | -151317 |
| 3standard | 1210 | Sekiya, Hiroshi (1443) | Lost 0-2 | -151302 |
| 4standard | 1251 | Okuyama, Kouhei (1410) | Won 2-1 | +201322 |
| 5standard | 1103 | Tuzii, Syouichi (1439) | Lost 0-2 | -161306 |
| top | average opponent: 1462record: 1-4 | new rating: 1306 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1342 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 618 | Hatada, Junya (1500) | Lost 1-2 | -151327 |
| 2standard | 1054 | Hayashi, Shouya (1754) | Lost 1-2 | -111316 |
| 3standard | 1640 | Oikawa, Toshinori (1465) | Won 2-1 | +211337 |
| 4standard | 1348 | Katakai, Masaki (1520) | Won 2-1 | +211358 |
| 5standard | 819 | Tsukada, Atsushi (1503) | Won 2-0 | +211379 |
| 6standard | 604 | Toyohara, Eisuke (1438) | Lost 1-2 | -171362 |
| 7standard | 931 | Oosaki, Masakazu (1553) | Lost 1-2 | -151347 |
| top | average opponent: 1533record: 3-4 | new rating: 1347 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1327 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 367 | Yuusuke, Ejima (1500) | Won 2-0 | +211348 |
| 2standard | 462 | Kobayashi, Akihiro (1497) | Won 2-1 | +211369 |
| 3standard | 350 | Hasegawa, Kazuhiko (1576) | Lost 0-2 | -141355 |
| 4standard | 644 | Machida, Takatoshi (1581) | Won 2-0 | +221377 |
| 5standard | 272 | Hasegawa, Gaku (1738) | Lost 0-2 | -121365 |
| 6standard | 621 | Koyama, Yuji (1686) | Lost 0-2 | -121353 |
| 7standard | 693 | Shimura, Takeshi (1540) | Lost 1-2 | -151338 |
| 8standard | 643 | Murase, Tatsuya (1417) | Lost 1-2 | -171321 |
| 9standard | 541 | Ogawa, Takumi (1468) | Won 2-0 | +211342 |
| top | average opponent: 1556record: 4-5 | new rating: 1342 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1354 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 5 | Sako, Wataru (1484) | Lost 0-2 | -151339 |
| 2sealed | 457 | Higuchi, Yasuhiro (1467) | Lost 0-2 | -161323 |
| 3sealed | 563 | Otahara, Sho (1402) | Won 2-1 | +201343 |
| 4sealed | 453 | Muneta, Yasutoshi (1477) | Lost 1-2 | -161327 |
| top | average opponent: 1457record: 1-3 | new rating: 1327 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1438 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 398 | Masuda, Kouhei (1446) | Lost 0-2 | -181420 |
| 2modern | 387 | Nakamura, Yuya9938 (1482) | Lost 1-2 | -171403 |
| 3modern | 549 | Liu, Keun-Lin (1490) | Won 2-1 | +201423 |
| 4modern | 471 | Atsumi, Naoya (1464) | Won 2-0 | +181441 |
| 5modern | 259 | Ishibashi, Takuya (1421) | Lost 1-2 | -181423 |
| 6modern | 393 | Tateishi, Hideto (1490) | Lost 1-2 | -171406 |
| 7modern | 392 | Yoshida, Shinsuke (1353) | Lost 1-2 | -191387 |
| 8modern | 324 | Tanaka, Yosuke (1498) | Lost 1-2 | -161371 |
| 9modern | 290 | Tatara, Yuichi (1428) | Lost 0-2 | -171354 |
| top | average opponent: 1452record: 2-7 | new rating: 1354 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1409 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 151 | Sugiyama, Wataru (1481) | Won 2-1 | +191428 |
| 2sealed | 186 | Ito, Masato (1460) | Lost 0-2 | -171411 |
| 3sealed | 299 | Furusawa, Reona (1485) | Won 2-0 | +191430 |
| 4sealed | 270 | Yang, Shao-fu (1524) | Lost 0-2 | -161414 |
| 5sealed | 272 | Watanabe, Masatoshi (1466) | Won 2-1 | +191433 |
| 6sealed | 198 | Takata, Mutsumu (1411) | Lost 1-2 | -191414 |
| 7sealed | 248 | Yuba, Hirofumi (1558) | Won 2-0 | +211435 |
| 8sealed | 311 | Nakano, Tatsuhito (1522) | Won 2-1 | +191454 |
| 9sealed | 303 | Takada, Kenichirou (1535) | Lost 0-2 | -161438 |
| top | average opponent: 1494record: 5-4 | new rating: 1438 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 452 | Kaneko, Shun (1500) | Lost 1-2 | -181482 |
| 2modern | 434 | Matsubara, Ichiro (1481) | Lost 0-2 | -181464 |
| 3modern | 698 | Sugitani, Kyousuke (1464) | Lost 1-2 | -181446 |
| 4modern | 713 | Shoji, Taku (1445) | Lost 1-2 | -181428 |
| 5modern | 656 | lin, jeffrey (1429) | Won 2-0 | +181446 |
| 6modern | 554 | Yoshino, Satoshi (1438) | Lost 1-2 | -181428 |
| 7modern | 481 | Sunaga, Ayumu (1362) | Lost 1-2 | -191409 |
| 8modern | 390 | Kobayashi, Hidetoshi (1407) | Won 2-0 | +181427 |
| 9modern | 305 | Horie, Youhei (1431) | Lost 0-2 | -181409 |
| top | average opponent: 1440record: 2-7 | new rating: 1409 | ||