Kanto Spring 2025

A total of 136 competitors converged in Ota, Tokyo, Japan on May 31, 2025, setting the stage for six hard-fought rounds across three distinct disciplines. The single-day WCA competition brought intense action to the venue at Ota ward plaza, drawing some of the region's sharpest talents to compete on the tournament stage. With three puzzle formats on the schedule, the event tested a wide spectrum of manual dexterity, quick visual processing, and high-pressure execution from morning to late afternoon.

The tightest battle at Kanto Spring 2025 came right at the top of the Pyraminx standings, where mere tenths of a second decided the title. Hajime Miyazaki captured the championship with a winning average of 2.43 seconds, anchored by a best single of 1.35 seconds. Miyazaki held off a ferocious challenge from Ao Nogami, who secured second place with an average of 3.01 seconds. Haruki Tsutsui rounded out the podium in third place with a 3.68 average, concluding a rapid final where every turn carried massive weight.

Ao Nogami delivered an outstanding individual showing across the entire weekend, competing in all three events and finishing on every podium. In the main Rubik's Cube event, Nogami claimed victory with a winning average of 6.88 seconds, alongside a best single solve of 6.40 seconds across two rounds featuring 131 competitors. Junnosuke Takahashi kept the pressure on in the final round, taking second place with an average of 7.45 seconds, while Kantaro Sakamoto locked down third place with an 8.06 average.

The 3x3 results in the opening round reflected exceptional depth among the contenders in Tokyo. Junnosuke Takahashi logged an average of 7.82 seconds and a 7.35 single, while Kantaro Sakamoto registered an 8.55 average with a 7.69 single. Jin Kimura and Sho Kashiyama matched identical 8.70 averages, with Kimura logging a 7.16 single and Kashiyama a 7.95. Shunsuke Komoda put up an 8.76 average featuring a quick 6.60 single, while Kounosuke Udou and Hitoki Kidahashi delivered averages of 9.04 and 9.14 seconds respectively.

International representation also left a significant mark on the 3x3x3 Cube round. Amey Gaba of India posted an average of 7.73 seconds and an exceptional single solve of 6.23 seconds. Natsuki Rokutan recorded an impressive 7.74 average with a 6.32 single, adding to the dense cluster of sub-eight-second averages. In the same preliminary round, Ao Nogami registered a 7.02 average with a 6.44 single, setting up the foundation for the eventual victory in the final round of the cubing competition.

Away from the top of the podiums, the competition floor served as a launchpad for major personal milestones. Kyan Roerdink took on three events at Kanto Spring 2025 and made a first ever attempt at Pyraminx, scoring 8.84 seconds, while slashing 27.9 percent off their 3x3x3 One-Handed personal best with a time of 15.44 seconds compared to an earlier 21.42. Naoto Urata also tackled three events, achieving a 7.65 on their first ever Pyraminx attempt, improving their 3x3x3 One-Handed mark by 21.4 percent down to 14.75 seconds, and trimming their 3x3x3 Cube time by 6.1 percent to 9.83 seconds.

The momentum continued as Anish Bishwokarma completed three events, recording a 9.32 on a first ever attempt at Pyraminx before improving their 3x3x3 One-Handed personal best by 23.4 percent to 23.41 seconds and their 3x3x3 Cube best by 19.2 percent to 11.46 seconds. Kazuhiko Kusano entered three events and registered first attempts at both 3x3x3 One-Handed at 53.22 and Pyraminx at 8.20, while improving their 3x3x3 Cube best by 19.8 percent down to 15.60 seconds. Kaito Suzuki posted first attempts in Pyraminx at 8.28 and One-Handed at 26.78, cutting their 3x3x3 Cube mark by 18.5 percent to 9.74 seconds. Yousef Salib took on three events, posting a 3.60 on a first Pyraminx attempt for a 20th place finish, a 24.07 in One-Handed, and an improved 11.40 in 3x3x3 Cube.

The 3x3x3 One-Handed event proved to be another highlight of the speedcubing schedule, drawing a field of 66 competitors over two rounds. Takumi Kato demonstrated supreme control to secure first place with a winning average of 10.43 seconds, punctuated by a best single of 9.95 seconds. Ao Nogami earned a second silver medal of the day by taking runner-up honors with an 11.35 average, while Shunsuke Komoda took third place with an 11.79 average.

With all nine podium placements across the three events claimed by competitors representing Japan, Kanto Spring 2025 wrapped up as a remarkable demonstration of regional speed cubing skill. The single-day tournament highlighted both the fine margins separating the championship contenders and the relentless progress of participants across every stage of development.

136名の競技者が集結した2025年5月31日、Ota, Tokyo, Japanの大田区民プラザにてスピードキュービングの熱戦が繰り広げられました。Kanto Spring 2025では計3種目6ラウンドが行われ、単発の突出したタイム以上に試行を揃える高い安定感が各部門の勝敗を分けました。

花形である3x3x3 Cube部門には131名が出場しました。決勝では野上碧 (Ao Nogami)が抜群の揃えを見せ、ベスト単発6.40とともに6.88のアベレージを記録して見事に優勝を果たしました。2位には平均7.45をマークした髙橋淳之介 (Junnosuke Takahashi)、3位には平均8.06の坂本貫太郎 (Kantaro Sakamoto)が続いています。

Pyraminx部門では宮崎朔 (Hajime Miyazaki)が圧巻のパフォーマンスを披露しました。宮崎朔 (Hajime Miyazaki)はベスト単発1.35、平均2.43という極めてハイレベルな記録を揃えて頂点に立ちました。2位には平均3.01の野上碧 (Ao Nogami)、3位には平均3.68の筒井遥規 (Haruki Tsutsui)が入賞しました。

片手でルービックキューブを操る3x3x3 One-Handed部門では加藤匠 (Takumi Kato)が快走しました。加藤匠 (Takumi Kato)は決勝でベスト単発9.95を出しつつ、平均10.43の安定したタイムで見事1位を獲得しました。この種目でも野上碧 (Ao Nogami)が平均11.35で2位、古茂田俊介 (Shunsuke Komoda)が平均11.79で3位に入りました。

このWCA competitionでは上位争いのみならず、各テーブルで大きな自己記録更新や新たな挑戦が生まれました。鶴留瑞己 (Mizuki Tsurudome)はPyraminxで従来の9.51から47.6パーセント短縮する4.98の自己最高をマークし全体12位に入ったほか、3x3x3 One-Handedでも22.66を記録しました。小出琳太郎 (Rintaro Koide)は今大会で3種目に挑戦し、初挑戦の3x3x3 One-Handedで28.52を残したうえPyraminxでも自己記録を19.6パーセント更新する7.94を出しました。

小圷悠介 (Yusuke Koakutsu)は初挑戦のPyraminxで2.22を出し4位に入る快挙を演じ、3x3x3 One-Handedでも従来より22.2パーセント短縮する8.55を記録しました。田口修士 (Shuji Taguchi)は初挑戦の片手部門で31.15を記録し、3x3x3 Cubeで16.1パーセント更新の14.47を達成しました。川端大翔 (Haruto Kawabata)はPyraminx初挑戦で7.68、片手で14.9パーセント向上の19.09をマークし、倉澤将司 (Masashi Kurasawa)もPyraminx初試行の6.10に加え3x3x3 Cubeで14パーセント短縮の17.35を記録しました。

今大会に設けられた全3種目の表彰台9枠はすべて日本勢が占める結果となりました。複数ラウンドを戦い抜くキューブ大会において、揺るぎない集中力で好タイムを揃え続けた選手たちの地力が際立つ一日となりました。

野上碧 (Ao Nogami)が3種目すべてで表彰台に登る大活躍を見せたKanto Spring 2025は、確かな実力を証明した勝者たちと自己ベストを塗り替えた挑戦者たちの熱気に包まれながら幕を閉じました。