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People · Indonesia

Leon Marcell Alamanda

3×3 one-handed · top 0.014% of 73,695 all-time · competing since December 2018 · 2018ALAM08

Leon Marcell Alamanda has been competing for 8 years. His best event is the 3×3 one-handed: a personal-best single of 6.19, set at Jawa Timur Open 2025, puts him in the top 0.014% of the 73,695 people who have ever been ranked in the event, and 1st in Indonesia. Until June 2024, no official 3×3 one-handed solve in the world had been that fast. Across 50 competitions since December 2018, he has put 2,979 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 70% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 18.34 in December 2018 to 4.98, a 73% improvement. Leon has entered 50 competitions, more competitions than 99% of everyone who has ever competed.

3×3 one-handed
best event — top 0.014% of 73,695 all-time
6.19
signature single · Jawa Timur Open 2025
2,979
official solves on the record
14%
solve-to-solve spread · wider than 70% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingIndonesia
3×3 one-handed6.1910.35
top 0.014%1 / 1,441
Square-14.1110.81
top 0.047%1 / 308
4×420.1123.75
top 0.055%2 / 1,479
5×538.4541.88
top 0.083%1 / 624
3×34.986.77
top 0.12%4 / 4,145
6×61:13.371:17.85
top 0.22%2 / 183
7×71:52.781:56.65
top 0.28%2 / 154
2×20.871.56
top 0.33%3 / 2,889
Skewb1.482.65
top 0.43%3 / 935
Pyraminx1.923.24
top 1.0%11 / 1,643
Megaminx38.8642.43
top 1.3%7 / 341
Clock3.974.76
top 2.3%5 / 391
3×3 Fewest Moves25 moves31.33
top 5.1%6 / 166
3×3 blindfolded1:20.21—
top 19.7%45 / 347

Percentile against all competitors ever ranked in each event, a fairer measure than raw rank, because the pools differ by a factor of ten.

The line so far

Jakarta Cubing 2018: 18.34Jakarta Mini Open 2019: 16.22Jakarta Open 2019: 9.12Yongjun Jakarta Speedcubing 2019: 9.31Tangerang Open 2019: 9.25Pejaten Village Speedcubing 2019: 10.74Jakarta Open 2020: 8.24Jakarta Mini Open 2020: 8.94CC Mini Sunday 2022: 7.27Jakarta Speedcubing 2022: 6.84Taman Anggrek Speedcubing B 2022: 5.99Tangerang Is Back 2022: 6.22Indonesian Championship 2022: 6.24PSKG Premiere Cubing 2023: 6.69Ignatian Open 2023: 5.60Just 3x3: Old Shanghai Edition 2023: 6.71Tangerang Lagi 2023: 6.91Taman Anggrek Speedcubing 2023: 6.45PIK 2: Osaka Riverview Cubing 2023: 5.63MYHM Indonesian Championship 2023: 5.74Jakarta Masters 2023: 6.84Canisius College Weekend 2023: 5.47Binus Speedcubing 2024: 5.96Gramedia Cube Open Jakarta 2024: 5.79PSKG Premiere Cubing 2024: 5.95Gajah Mada Speedcubing 2024: 6.21Bali Discovery Speedcubing Masters 2024: 5.52Lippo Mall Puri Speedcubing 2024: 5.11Karawang Open 2024: 5.90Hublife Speedcubing 2024: 5.66Jogjakarta Speedcubing Masters 2024: 4.9850th Anniversary in Indonesia 2024: 6.55Rapid Academy Indonesian Championship 2024: 6.23PSKG Premiere Cubing 2025: 5.65Hublife Speedcubing 2025: 5.43Intermoda BSD Sides Day 2025: 6.47Cupika Jakarta Cube Feast 2025: 5.81Jawa Timur Open 2025: 6.12Balam Cubes Jakarta Masters 2025: 5.06SuNxNter Speedcubing 2025: 5.55 Balam Cubes Bogor Revival 2025: 6.33Balam Cubes Baywalk Sides 2025: 5.29Rapid Academy Indonesian Championship 2025: 6.17Balam Cubes Jakarta New Year 2026: 6.20PISKG Premiere Cubing 2026: 5.65Jakarta Mini K-ubing 2026: 6.59Balam Cubes Jakarta Cube Feast 2026: 6.07Cupika Jakarta Summer 2026: 5.42Kalibata Agustusan 2026: 5.314.9818.3415 Dec 201815 Aug 2026

Best single per competition, 3×3. Faster is higher — the axis is the right way up.

The story so far

Competitions

Reading this page: a single is one solve's time · an average is the middle three of five solves, best and worst discarded · a PB is a personal best · a DNF (did not finish) is an attempt with no valid result: a popped piece, an unsolved face, an over-limit memorisation · top X% compares against everyone ever ranked in that event, which is fairer than raw rank because event pools differ tenfold.

The circuit

The people whose scorecards keep turning up next to his.

Next targets

  • A sub-6 3×3 one-handed single — 4 people have one; it is 0.19 away.
  • A sub-4 Square-1 single — 11 people have one; it is 0.11 away.

Targets move as he improves.