Feliks Zemdegs: The Metronome of Speedcubing
On 30 January 2010, a fourteen-year-old from Melbourne averaged 9.21 seconds on a Rubik's Cube and took the world record. He would take it, or something like it, another hundred-odd times. By the time the last of them fell on 5 June 2021, Feliks Zemdegs had set 121 world records — a career total that reads less like a list of achievements than like a weather system that parked itself over a sport for a decade.
A YouTube Tutorial and a Cheap Plastic Cube
Zemdegs was born on 20 December 1995, an Australian of Latvian descent with a Lithuanian maternal grandmother. The origin story is almost aggressively ordinary: in April 2008 he watched speedcubing tutorials on YouTube and bought his first speedcube. On 14 June 2008, his first unofficial solves averaged 19.73 seconds — a time that would embarrass him within months and that most casual cubers never reach at all. Fourteen months after picking up the puzzle, on 18 July 2009, he won his first official competition, the New Zealand Championships.
What separates that trajectory from thousands of other teenagers who found the same videos is not visible in the record. There was no coach, no institution, no national program. There was a boy, a cube, and an internet connection, and then, very quickly, there was a world record.
The Record Machine
The years 2010 and 2011 were the ones that established the pattern. By May 2011 Zemdegs held twelve world records simultaneously — not in a single discipline, but spread across the World Cube Association's catalogue of cube sizes and formats. He held the 3×3×3 average record continuously from 2010 to 2017, driving it down to 6.45 seconds. On the 5×5×5 he set 37 world records, more than any other competitor has managed on any single event. Across his career the ledger runs to 121 world records, 228 continental records and 7 national records, spread over more than 350 record-setting performances.
The distinction matters. Plenty of speedcubers have had a fast day and a lucky scramble. Zemdegs turned the world record into a recurring appointment, breaking it more than twenty times, which is a different kind of feat entirely — it implies not a peak but a floor that kept rising.
Two Crowns
He also did it under pressure, which is rarer still. At the 2011 World Championship in Bangkok he won the 2×2×2, 4×4×4, 5×5×5 and 6×6×6, and took third in the 3×3×3 and 7×7×7. In Las Vegas in 2013 he won the 3×3×3, 4×4×4 and one-handed events. In São Paulo in 2015 he won the 3×3×3, 2×2×2, 4×4×4 and 5×5×5 and placed second in three more. The Sydney Morning Herald wrote that year that "Zemdegs dominated all comers at the São Paulo event, claiming a total of five world titles and arguably becoming the greatest speedcuber in history."
Those two 3×3×3 world titles, in 2013 and 2015, remain the load-bearing line on his résumé. Only one other person in the history of the sport has won the blue-riband event twice: Max Park, his closest rival and, in the 2020 Netflix documentary *The Speed Cubers*, his co-subject.
Building the School
Zemdegs did something most dominant athletes do not: he gave away the method. He built CubeSkills, an instructional site offering tutorials and premium speedsolving content, and a YouTube channel that had passed 477,000 subscribers by March 2026. The effect was to compress the learning curve for everyone behind him. A generation of cubers learned to be fast by studying the person they were trying to beat, and then beat him.
He was not, meanwhile, a single-track prodigy. He graduated from St Kevin's College, Toorak, in 2013 with a perfect VCE English score and an ATAR of 99.90, then took a Bachelor of Commerce at the University of Melbourne, majoring in economics with mechanical engineering breadth studies. He now works in investment finance. In 2024 he voiced a character in the animated series *Battle for Dream Island*; in March 2026 he married Jia Ying Kho.
The Long Descent
The end of the dominance was clean and public. On 5 June 2021 he lost his last world record, a 5.53-second 3×3×3 average, to Ruihang Xu. At the 2023 World Championship in Incheon he failed to podium and missed the 3×3×3 semi-finals for the first time since 2011. At Seattle in 2025 he made the semi-finals and no further. As of May 2026 he ranked 45th in the world on the 3×3×3 average and 57th on the single — times that would have been superhuman in 2013 and are now merely excellent.
Speedcubing's clock is unusually cruel: the sport's global standard improved so fast, partly because of him, that a static athlete falls dozens of places in a few seasons. PerthNow reported in 2022 that "now working in finance investment, Zemdegs said he planned to keep competing for a while longer."
Why Feliks Is Called a Genius
Honesty first: the case for Zemdegs rests on craft and physical skill, not on intellect in the sense that word usually implies. Speedcubing is a solved problem. The algorithms are public, the methods are taught on his own website, and nothing he does requires discovering anything mathematically new. What he possesses instead is a rare compound of three things — pattern recognition fast enough to parse a scrambled cube in the fifteen-second inspection window; "lookahead," the ability to track where the next pieces will be while the hands are still executing the current move; and fine motor control at a frequency the nervous system barely supports. The genius, if the word applies, is in the seam between seeing and moving, where perception has to run ahead of the fingers without the mind consciously narrating either.
Others have used the language of greatness rather than of genius. The Sydney Morning Herald called him "arguably... the greatest speedcuber in history"; The Guardian in 2025 framed the question as contentious and placed him "certainly" on the shortlist, noting he "broke the world record over 20 times in his career."
The counter-case is real. His records have all been taken, some by teenagers using techniques he published. Scramble luck means any single record is partly a lottery; only the accumulation is meaningful. And his intellectual credentials — a perfect English score, an ATAR of 99.90, a commerce degree — belong to a bright, disciplined student, not to a singular mind. Zemdegs is best understood as an athlete of the hands and eyes who arrived early, practised obsessively, and set a standard the field then spent a decade catching.
Legacy
The measure of Zemdegs is that the sport he dominated no longer looks like the sport he entered. Times that once seemed like theoretical limits are now qualifying standards, and the people setting them learned, in many cases, from his videos. He held a record for seven straight years, won the world championship twice, and then handed the whole apparatus — the algorithms, the drills, the audience — to the people who would overtake him. That is a strange and rather generous kind of dominance, and it is why the argument about the greatest speedcuber of all time still begins with his name.
