Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Indonesia → Giovanni Tanaka (陈华安)

People · Indonesia

Giovanni Tanaka (陈华安)

Clock · top 9.1% of 32,048 all-time · competing since February 2018 · 2018TANA03

Giovanni Tanaka (陈华安) has been competing for 8 years. His best event is the Clock: a personal-best single of 6.50, set at Bali Discovery Speedcubing Masters 2024, puts him in the top 9.1% of the 32,048 people who have ever been ranked in the event, and 34th in Indonesia. Until June 2010, no official Clock solve in the world had been that fast. Across 16 competitions since February 2018, he has put 456 official solves on the record across 16 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 66% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. That figure sets aside his 5 DNFs. His 3×3 best has come down from 15.72 in February 2019 to 10.72, a 32% improvement. Giovanni has entered 16 competitions, more competitions than 96% of everyone who has ever competed.

Clock
best event — top 9.1% of 32,048 all-time
6.50
signature single · Bali Discovery Speedcubing Masters 2024
456
official solves on the record
14%
solve-to-solve spread · wider than 66% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingIndonesia
Clock6.507.18
top 9.1%34 / 391
3×310.7213.75
top 9.6%420 / 4,145
4×446.2455.55
top 19.8%262 / 1,479
Skewb5.358.81
top 20.9%216 / 935
Megaminx1:19.741:29.77
top 21.6%89 / 341
3×3 Fewest Moves35 moves42.33
top 30.0%30 / 166
2×24.726.21
top 35.8%1,076 / 2,889
3×3 blindfolded2:07.563:08.29
top 36.0%108 / 347
Square-124.1833.50
top 37.2%112 / 308
5×51:48.951:58.22
top 41.8%252 / 624
Pyraminx10.1216.18
top 53.9%952 / 1,643
6×63:44.214:06.10
top 60.2%119 / 183
7×75:57.636:15.73
top 67.1%105 / 154
3×3 one-handed42.1351.25
top 68.3%1,110 / 1,441
3×3 Multi-Blind3 of 4 cubes · 24:14—
early days — 3 solves76 / 125
4×4 blindfolded15:14.00—
early days — 1 solve31 / 42

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

Medan Lunar New Year 2019: 15.72Medan Mini All Events 2019: 13.59Medan Farewell 2019: 17.26Malaysia Cube Championship 2019: 16.42Medan 10th Anniversary 2019: 14.12Medan Lunar New Year 2020: 12.67YJ Malaysia Cube Open 2022: 16.36Bali Discovery Speedcubing Masters 2024: 13.11Rubik's WCA Asian Championship 2024: 15.35Bali Speedcubing Open 2025: 13.84Bali Mini Speedcubing 2026: 13.78Bali Discovery Speedcubing Master 2026: 10.7210.7217.269 Feb 201927 Jun 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 Clock single — 2,324 people have one; it is 0.50 away.
  • A sub-10 3×3 single — 21,172 people have one; it is 0.72 away.

Targets move as he improves.