Kanto Summer PM 2025

Ivan Li Ka Leong delivered the standout performance of the afternoon in Ota, Tokyo, Japan, securing a commanding victory in the 5x5x5 Cube with an average of 45.18 seconds. His best single solve of 40.76 set the benchmark across the entire competition, demonstrating absolute control across every turn. In longer puzzle events, the cost of a single slip or locked layer can devastate a competitor's final ranking, leaving zero room for hesitation over five disciplined attempts. Li Ka Leong navigated that pressure with relentless consistency to capture the gold for Hong Kong.

The single-day WCA competition, held on August 30, 2025, brought together 75 competitors at the Ota Ward Plaza for an intense showcase of classic speedcubing. Spanning 4 rounds across two core events, Kanto Summer PM 2025 offered a concentrated schedule where every solve carried immense weight. Participants gathered to test their skills in front of the timing displays, chasing personal milestones and podium spots in one of the most active cubing hubs in the world.

In the 3x3x3 Cube event, 74 competitors lined up for the opening round of the traditional Rubik's Cube. The competition intensified in the final round, where Junnosuke Takahashi claimed victory with a remarkably composed winning average of 7.28 seconds. Takahashi also recorded a best single solve of 6.80 seconds during the event to lead the final standings. Sei Sugama earned second place with an average of 7.38 seconds, while Ao Nogami secured third place on the podium with an average of 7.46 seconds.

The 3x3 results throughout the afternoon reflected an exceptionally deep field of Japanese speed cubing talent. Ao Nogami set the fastest single solve of the entire tournament during the 3x3x3 Cube rounds with a blistering 5.84. Shu Ogawa produced a rapid 6.55 single on his way to a 7.89 average, while Kounosuke Udou laid down a 6.62 single and an 8.21 average. Takumi Kawazoe also impressed across the event, notching a 6.97 single and a 7.30 average, and Taiwan's Yi-Fan Wu delivered a 7.24 single alongside a 7.58 average.

Beyond the championship finals, the heart of the tournament emerged in the individual progress of competitors pushing their boundaries. Kenshin Asai entered two events and achieved a career-best finish of 18th place in the 3x3x3 Cube, lowering his personal best average to 7.70 seconds, which was 17.1 percent faster than his previous standard of 9.29. Asai also logged his first ever attempt in the 5x5x5 Cube, finishing in 1:29.45. Meanwhile, Trần Anh Sơn delivered one of the day's biggest leaps, dropping his 5x5x5 Cube personal best down to 1:04.10, an outstanding 34.7 percent improvement over his prior mark of 1:38.17.

Several other dedicated solvers expanded their repertoires by tackling the demanding 5x5x5 Cube for the very first time on the official stage. Haruto Tatsuta took on two events and recorded his first official 5x5x5 Cube result with a mark of 1:21.43, while Go Nakamura posted a time of 1:23.41 in his initial attempt. Shota Ishii tackled both disciplines, registering a first 5x5x5 Cube time of 1:32.21 while simultaneously trimming his 3x3x3 Cube personal best by 4.2 percent to 9.20 seconds. Yousef Salib put up a debut time of 1:33.38, Mitsuki Fujii completed his first attempt in 2:20.62, and Kazuhiko Kusano rounded out the new event milestones with a time of 2:43.01.

The 5x5x5 Cube event saw 51 competitors take to the tables across 2 rounds of intense problem-solving. While Ivan Li Ka Leong captured the title, the battle for the remaining podium positions came down to a matter of hundredths of a second. Yi-Fan Wu secured second place with an average of 51.31 seconds, holding off Ao Nogami, who took third place with a 51.36 average. Nogami's performance earned him two individual podium finishes across the tournament, highlighting his versatility in both small and large cubes.

Across the two official disciplines at Kanto Summer PM 2025, podium places were distributed across three different territories, with Japan earning four places, Hong Kong taking one, and Taiwan taking one. From elite single solves dipping into the five-second range to foundational personal bests across the field, the gathering highlighted the continuous drive for progression that defines modern competitive cubing as participants look ahead to the next chapter of the season.

東京都大田区の大田区民プラザにて、2025年8月30日にスピードキューブの熱戦が繰り広げられました。会場内には競技用タイマーの操作音やキューブを回す乾いた回転音が響き渡り、75名の選手たちが自らの限界へと挑む準備を整えていました。静まり返った空間の中で、選手一人ひとりが手元に全神経を注ぎ込み、一瞬の指先の動きにすべてを懸ける張り詰めた空気が漂っていました。

目隠し競技をはじめとするスピードキュービングの世界では、手順の記憶と極限の集中力が不可欠です。今大会で実施された種目においても、選手たちは開始前のインスペクションで瞬時に配置を読み解き、迷いのない指捌きで解法を組み立てていきました。わずかな判断の遅れがタイムに直結する環境下で、高度な精神力が各ラウンドで試されることとなりました。

2種目4ラウンドで競われたKanto Summer PM 2025のメイン種目である3x3x3 Cubeでは、計74名がエントリーし2ラウンドにわたりハイレベルな戦いが展開されました。決勝ではJunnosuke Takahashi (髙橋淳之介)が7.28の平均タイムを叩き出して見事に優勝を飾りました。また、単発では6.80の好記録をマークし、安定感とスピードの両面で会場を唸らせました。

3x3x3 Cubeの表彰台争いは非常に僅差の勝負となりました。Sei Sugama (洲鎌星)が平均7.38を記録して2位に入り、Ao Nogami (野上碧)が平均7.46で3位に続きました。さらにAo Nogami (野上碧)は単発5.84という驚異的なタイムを記録したほか、Takumi Kawazoe (川添匠)も単発6.97および平均7.30の素晴らしい試技を揃えるなど、上位陣の実力が遺憾なく発揮されました。

大型パズルである5x5x5 Cubeには51名が参加し、こちらも2ラウンドの激闘となりました。この種目を制したのは香港のIvan Li Ka Leong (李嘉亮)で、圧巻の平均45.18、単発40.76をマークして頂点に立ちました。2位には台湾のYi-Fan Wu (吳亦凡)が平均51.31で入り、3位には平均51.36を記録したAo Nogami (野上碧)が入賞を果たしました。

公式記録のトップ争いと並び、自己ベスト更新や新たな挑戦に臨んだ選手たちの活躍も光りました。Syunei Miyauchi (宮内俊英)は5x5x5 Cubeで以前の記録を15.5パーセント縮める1:49.56の自己記録を樹立し、3x3x3 Cubeでも13.5パーセント更新となる9.31を記録しました。Arata Koga (古賀新汰)は3x3x3 Cubeで前記録から15パーセント短縮する15.27の自己ベストをマークしました。Jin Kimura (木村仁)は3x3x3 Cubeで7位に入り7.12の自己記録を出すとともに、5x5x5 Cubeに初挑戦して1:17.46を記録し、Kenta Kobayashi (小林謙太)も5x5x5 Cube初挑戦で1:06.14を記録しました。

今大会が初のWCA competitionとなった選手たちも素晴らしい足跡を残しました。初出場となったRyota Yuzawa (湯澤亮太)は3x3x3 Cubeで7.97、5x5x5 Cubeで1:01.59をそれぞれ初計測しました。同じく初出場のTomoki Takeda (武田智喜)は3x3x3 Cubeで9.24、5x5x5 Cubeで1:49.69を記録し、Nguyen Duc Khoa Anhは3x3x3 Cubeで14.33、5x5x5 Cubeで2:07.92を残しました。Leo Yamamoto (山本礼恩)も3x3x3 Cube初挑戦で22.78をマークしました。

ルービックキューブ愛好家が集ったこの週末は、日本勢が4枠、香港と台湾がそれぞれ1枠のポディウムを獲得する国際色豊かな結果となりました。大田区民プラザで開催されたKanto Summer PM 2025は、トップ層の技術の高さと新たな挑戦者たちの熱意が交差する充実した一日となり、各選手はそれぞれの確かな成果を胸に大会を締めくくりました。