Otsu Biwako Autumn 2026
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A written summary of Otsu Biwako Autumn 2026, generated from the official results on this page.
Otsu Biwako Autumn 2026 Sees International Contenders Challenge Domestic TalentEnglish
A nail-biting showdown in the 3x3x3 Cube settled the top prize at Otsu Biwako Autumn 2026, as Japan's Takeru Iguchi delivered a winning mark of 7.41 to edge out compatriot Kantaro Sakamoto by just fourteen hundredths of a second. The pressure was intense on the final solves, with the Netherlands' Vincent Chan pressing hard from third place with a 7.86 mark. That narrow margin at the top set the tone for an action-packed speedcubing gathering in Otsu, Shiga, Japan, on September 20, 2026, where regional mastery was tested across four distinct disciplines.
The one-day WCA competition brought together solvers eager to test their skills at the Asuto Hamaotsu venue. While domestic Japanese competitors secured nine podium spots across the four events, international visitors delivered stiff resistance. The presence of international challengers like Vincent Chan and New Zealand's Ashley Foster gave the tournament the electric feel of an inter-regional clash, pushing domestic favorites to bring their sharpest performances to the tables in every discipline on the schedule.
In the classic Rubik's Cube main event, the tension was palpable as the 3x3 results unfolded. Kantaro Sakamoto posted a stout 7.55 to apply pressure on the leaderboard, but Takeru Iguchi stayed composed under the clock to secure first place with his 7.41. Vincent Chan rounded out the podium with a disciplined 7.86, demonstrating the high baseline required to take silverware home from this competitive field. The battle showed how slim the margins can be at an elite Japanese cubing competition.
Vincent Chan struck back decisively in Square-1, denying the domestic contingent a sweep of the titles. Chan claimed victory with a swift 7.68 mark, outlasting Japan's Yasunari Kumekawa who claimed second place with a 9.03 result. Soichiro Yamamoto secured third place for Japan by posting a 9.93. The performance cemented Chan's status as a dual threat across both shape-shifting puzzles and standard speed cubing events throughout the weekend.
Away from the top of the podium, the tournament served up remarkable personal milestones that captured the true spirit of speedcubing. Takaranosuke Akagi produced one of the most stunning drops of the competition, registering a 6x6x6 Cube personal best of 3:19.13, which was 58.4 percent faster than his previous best of 7:59.06, while also taking on his first ever attempt at Skewb with a 6.56 to finish 17th. Muku Mitera tackled four events, making a debut attempt in Square-1 with a 17.55 for 13th place and shaving 41.2 percent off his 6x6x6 Cube best with a new mark of 2:21.64.
The breakthroughs continued across the roster as competitors unlocked major personal progress. Mirei Morioka contested four events, setting a Square-1 personal best of 19.83 to improve by 37.1 percent alongside a 7.39 Skewb personal best and a 2:45.65 in 6x6x6 Cube. Masayuki Yasui made his first ever attempt at Skewb, taking 6th place with a 3.81 while setting a 3x3x3 Cube personal best of 11.07. Ryosei Yamada earned 4th in Square-1 with a personal best of 8.59, improved his Skewb mark by 26.1 percent to 3.00, and logged a 3:12.02 in 6x6x6 Cube. Ryota Yuzawa took 4th in 6x6x6 Cube with a 1:33.87 personal best alongside a first Skewb attempt of 5.71, Masafumi Mitera made his first Square-1 attempt in 33.34 and notched an 16.53 3x3x3 Cube personal best, and Kento Yagi lowered his Skewb best by 24 percent to 7.20 and his 3x3x3 Cube mark to 11.44.
The large-cube battles provided another arena for classic local competition, with the 6x6x6 Cube discipline going to Tomohiro Kobayashi. Kobayashi navigated the intricate centers and edge pairing with clean efficiency, logging a winning mark of 1:35.35. Takeru Iguchi added another podium finish to his tally by taking second place with a 1:40.57, just ahead of Masayuki Hirai who completed the Japanese sweep of the event with a 1:41.96.
The Skewb event proved equally fierce, featuring a display of lightning-quick turning from Shunya Ishikawa. Ishikawa captured first place with an impressive 2.49 mark, leading fellow Japanese solver Noriyuki Okada, who took second place in 3.21. Ashley Foster of New Zealand battled into the top three, claiming a well-deserved third place with a 4.27 mark to ensure another international entry on the podium ledger.
With four events wrapped up in Shiga, Otsu Biwako Autumn 2026 proved to be an exceptional showcase of both veteran consistency and rapid personal development. The hard-fought contests between visiting international challengers and local stalwarts elevated the standard across every division. As solvers return to training for the next season of competition, the performances in Otsu set a formidable benchmark for the year ahead.
滋賀の地で繰り広げられた熱戦 Otsu Biwako Autumn 2026が閉幕日本語
滋賀県大津市の明日都浜大津で開催されたスピードキュービング大会で、花形種目である3x3x3 Cubeを制したのは7.41をマークしたTakeru Iguchi (井口丈瑠)でした。2位のKantaro Sakamoto (坂本貫太郎)が記録した7.55、3位に入ったオランダのVincent Chanの7.86を僅差で振り切り、地元日本の実力者が最高峰の栄冠を掴み取りました。コンマ数秒を争う緊迫したトップ争いは会場の熱気を一気に高めました。
2026年9月20日に開催されたOtsu Biwako Autumn 2026は、Otsu, Shiga, Japanを舞台に国内外から集結したキューバーたちが4種目でしのぎを削る熱い一日となりました。日本国内の各地から集まった選手たちと海外勢による地域間のライバル関係が盤面上で激突し、各種目でハイレベルな記録の応酬が見られました。国別ポディウム数では日本が9枠、オランダが2枠、ニュージーランドが1枠を獲得する結果となっています。
ビッグキューブの舞台となった6x6x6 Cubeでは、Tomohiro Kobayashi (小林知広)が1:35.35という驚異的なタイムを叩き出して見事に優勝を飾りました。2位には3x3x3 Cube覇者のTakeru Iguchi (井口丈瑠)が1:40.57で入り、マルチな実力を発揮しています。さらにMasayuki Hirai (平井雅之)が1:41.96で3位に食い込み、日本勢による表彰台独占の熾烈な争いが繰り広げられました。
変形パズルのSkewbでは、日本のShunya Ishikawa (石川隼也)が2.49の圧倒的なタイムで頂点に立ちました。これに続いたNoriyuki Okada (岡田典之)が3.21で2位を確保し、3位にはニュージーランドから参戦したAshley Fosterが4.27で食い込んで国際色豊かな戦いとなりました。一方のSquare-1ではオランダのVincent Chanが7.68を叩き出してタイトルを奪取し、Yasunari Kumekawa (粂川泰成)の9.03、Soichiro Yamamoto (山本颯一郎)の9.93を抑えて海外勢の存在感を示しました。
上位のタイトル争いが白熱する一方で、Otsu Biwako Autumn 2026のフロアでは個々の目標に挑む選手たちの確かな前進がありました。通算86大会目の出場となったAkatsuki Kitamura (北村曉)は3種目に挑み、Skewbで従来の自己ベスト6.34から25.1パーセント短縮する4.75の自己新記録を樹立してSquare-1では20位となりました。Kyoka Kobayashi (小林京香)は2種目に出場し初のSkewb挑戦で8.20を記録して21位に入り、Naoto Matsumoto (松本尚斗)も2種目の中で初のSquare-1に挑み32.97で23位の記録を残しました。Keisuke Shibataは2種目にエントリーし、初挑戦となったSkewbで16.94を記録して32位を収めています。
さらに今大会が初のWCA大会出場となったルーキーたちも目覚ましい挑戦を見せました。Hiromi Tanaka (田中博視)は3種目に挑み、初挑戦のSkewbで3.79をマークして堂々の4位に入ったほかSquare-1で23.37、ルービックキューブこと3x3x3 Cubeで10.84を記録しました。同じく初出場のSosuke Hara (原蒼介)は2種目で奮闘し、初挑戦のSkewbで4.14を記録して8位、3x3x3 Cubeで21.85を刻みました。Taiki Hodatsu (宝達大紀)は3x3x3 Cubeで初挑戦ながら11.37を記録して32位、Haruta Nagahara (永原暖大)も3x3x3 Cube初挑戦で42.45をマークして65位で公式記録への第一歩を記しました。
Otsu Biwako Autumn 2026は、多様なパズルの魅力と選手それぞれのバックグラウンドが交錯する素晴らしい一日となりました。遠征して地域を代表して競い合った選手たちや、自らの限界に挑んだキューバーたち全員の挑戦が、大会の充実度を物語っています。4つの異なる種目で繰り広げられた盤上のドラマは、琵琶湖の畔に鮮烈な記憶を刻み込みました。
一日限りの熱戦を終えたOtsu Biwako Autumn 2026は、競技スピードキューブの奥深さとコミュニティの結束を改めて証明して幕を閉じました。表彰台に登壇した選手たちも、新たな自己記録を打ち立てた選手たちも、次なるシーズンへ向けてそれぞれの課題と収穫を胸に会場を後にしました。地域を越えたライバルたちの切磋琢磨は、これからも各地の公式大会の舞台で続いていきます。