Ota Autumn 2025

Inside Ota ward plaza in Ota, Tokyo, Japan, the competition tables were arranged for an intense day of precision turning and mental calculation. Timers clicked and display lights flashed across the floor on November 8, 2025, bringing together a field of 72 competitors. The structured environment provided the classic setting for competitive solving, where analytical thinking and deliberate execution stand in sharp contrast to the blistering pace of frantic hand movement.

While solving disciplines often evoke the meticulous, methodical nature of pen-and-paper Fewest Moves analysis where competitors deliberate over single turns, Ota Autumn 2025 channeled that analytical rigor into pure speedcubing velocity. Every rotation of the puzzle required foresight and calculation under strict timing rules. Across seven rounds in three fast-paced disciplines, participants translated geometric strategy into rapid mechanical execution during the single-day gathering.

The premier 3x3x3 Cube event drew a headline field of 67 competitors, progressing through three rounds of elimination. Shu Ogawa emerged as the champion in the final round, locking down a winning average of 7.48 seconds to take top honors in the main Rubik's Cube category. Ogawa paired that consistency with a best single solve of 6.36 seconds, securing victory in a remarkably tight battle at the top of the standings.

The 3x3 results featured an exceptionally narrow margin at the finish. Kantaro Sakamoto finished as runner-up with an average of 7.50 seconds, trailing Ogawa by a mere two hundredths of a second. Yi-Fan Wu of Taiwan took third place on the podium with a 7.63 average. Overall, Japanese competitors secured eight of the nine available podium positions across all events, with Wu providing Taiwan's sole podium finish at Ota Autumn 2025.

Beyond the podium race, several participants achieved standout personal milestones and expanded their repertoires across multiple disciplines at this cubing competition. Go Nakamura entered three events and secured an eighth-place finish in Pyraminx, cutting his Skewb personal best by 48.4 percent to 4.56 seconds from 8.83 and lowering his Pyraminx mark by 45.1 percent to 2.25 seconds. Sho Nakamura took on the classic cube and dropped his personal best by 34.8 percent to 11.86 seconds from 18.18. Yusuke Suzuki tackled three events, finishing 16th in Pyraminx while slicing his Skewb best by 33.6 percent down to 5.62 seconds from 8.46.

First-time event attempts also highlighted the depth of the weekend program. Harunosuke Yoshida placed 12th in the 3x3x3 Cube with a personal best of 6.76 seconds, a 17 percent drop from 8.14, while logging a first official Pyraminx attempt of 8.19 seconds. Harenosuke Eguchi registered a 15th-place finish in Pyraminx on a debut 5.79 single, alongside a 3x3x3 Cube best of 10.41 seconds, down 3.7 percent from 10.81. Kayo Osawa completed two events, logging a first Pyraminx solve of 9.53 and a first Skewb solve of 14.10. Yusuke Misawa entered three events, recording a first Pyraminx mark of 16.87 and a first Skewb mark of 13.98, while Kyohei Nakano posted a first Skewb solve of 26.36 and a first Pyraminx solve of 19.93.

The side events delivered equally brisk times, beginning with the Pyraminx tournament which gathered 33 competitors over two rounds. Nice Yoshida captured first place with a winning average of 2.85 seconds and a best single solve of 1.83 seconds. Hajime Miyazaki followed in second place with an average of 3.11 seconds, while Haruki Tsutsui completed the top three with a mark of 3.57 seconds.

The Skewb bracket also saw 33 competitors battle across two rounds of speed cubing action. Shunya Ishikawa claimed the victory with a 2.55 average and a lightning-fast 1.87 single solve. Noriyuki Okada took the second spot on the podium with a 3.33 average, while Raiden Reynolds secured third place with a 4.47 average, wrapping up the round with decisive turning across the final solves.

As the equipment was packed away at Ota ward plaza, the single-day WCA competition closed its books on the 2025 calendar in Tokyo. From the opening turns to the deciding solves, Ota Autumn 2025 showcased the sharp focus, intense preparation, and diverse puzzle disciplines that define modern competitive cubing.

2025年11月8日、大田区民プラザの会場には朝早くから多くのキューバーが集まり、静かな緊張感とパズルを回す小気味よい音が響き渡っていました。東京都大田区（Ota, Tokyo, Japan）で開催されたこのスピードキューブの大会には、総勢72名の競技者が集結しました。

今大会では全3種目、合計7ラウンドが実施され、ルービックキューブ（3x3x3 Cube）をはじめとする各競技で熾烈なタイム争いが繰り広げられました。経験豊富なベテラン競技者たちが長年培った技術を存分に発揮し、見事な復調を見せる場面が随所にありました。

花形種目である3x3x3 Cubeでは、合計67名が予選からしのぎを削り、3ラウンドにわたる戦いとなりました。決勝を制したのはShu Ogawa (小川柊)選手で、記録した優勝平均タイムは7.48、ベスト単発は6.36という見事なパフォーマンスでした。

3x3x3 Cubeの表彰台争いは僅差の激戦となり、Kantaro Sakamoto (坂本貫太郎)選手が平均7.50で惜しくも2位、台湾のYi-Fan Wu (吳亦凡)選手が平均7.63で3位に食い込みました。日本勢が8枠、台湾勢が1枠の表彰台を獲得するハイレベルな戦いとなりました。

PyraminxではNice Yoshida (吉田名偉主)選手が単発1.83、平均2.85の圧倒的なスピードで優勝を飾りました。Hajime Miyazaki (宮崎朔)選手が平均3.11で2位、Haruki Tsutsui (筒井遥規)選手が平均3.57で3位に入賞しました。SkewbではShunya Ishikawa (石川隼也)選手が単発1.87、平均2.55をマークして頂点に立ち、2位のNoriyuki Okada (岡田典之)選手（平均3.33）、3位のRaiden Reynolds (レイノルズ頼傳)選手（平均4.47）が続きました。

競技結果の数字の裏には、個々の挑戦の物語が刻まれています。通算37大会目の出場となったShoji Ueda (植田昌司)選手は今大会で3種目に挑戦し、Skewbで従来の自己ベストを26.9パーセント短縮する10.26の自己記録を樹立しました。通算10大会目のKota Aruga (有賀晃太)選手は初挑戦のPyraminxで9.72を記録し、3x3x3 Cubeでも8.67の自己記録を収めました。9大会目のKenshin Asai (浅井謙伸)選手はPyraminxで9位の最高順位を収めつつSkewbの初挑戦で4.90をマークし、通算8大会目のYasumichi Miura (三浦康倫)選手もSkewbに初挑戦して14.36を残しました。

さらに今大会が初のWCA公式大会となった選手たちも素晴らしい第一歩を刻みました。Tomoya Iwano (岩野智也)選手は3x3x3 Cubeに初挑戦して10.65を記録し、Aoi Endo (遠藤蒼空)選手も同種目で14.36の初記録を残しました。Mirai Igakko選手も3x3x3 Cubeの初挑戦で15.76をマークし、Koki Yoshida (吉田光希)選手はPyraminxに初挑戦して22.59を記録しました。

多種多様なパズルが揃い、ベテランの意地と初挑戦のフレッシュな勢いが交差したOta Autumn 2025は、全日程を無事に終えました。それぞれのキューバーが手応えと課題を持ち帰り、次のシーズンに向けた新たな練習の日々へと歩みを進めていきます。