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The Middle Three
People → Republic of Korea → Inha Woo (우인하)

People · Republic of Korea

Inha Woo (우인하)

Pyraminx · top 1.1% of 129,321 all-time · competing since January 2010 · 2010INHA01

Inha Woo (우인하) has been competing for 17 years. His best event is the Pyraminx: a personal-best single of 1.98, set at Cube Is Good 2016, puts him in the top 1.1% of the 129,321 people who have ever been ranked in the event, and 22nd in Republic of Korea. Until July 2011, no official Pyraminx solve in the world had been that fast. Across 26 competitions since January 2010, he has put 384 official solves on the record across ten events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 78% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 18.94 in January 2010 to 8.05, a 57% improvement. Inha has entered 26 competitions, more competitions than 98% of everyone who has ever competed.

Pyraminx
best event — top 1.1% of 129,321 all-time
1.98
signature single · Cube Is Good 2016
384
official solves on the record
12%
solve-to-solve spread · steadier than 78% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
Pyraminx1.983.01
top 1.1%22 / 1,271
3×38.0510.59
top 2.9%185 / 4,352
4×430.9635.10
top 3.4%72 / 1,308
3×3 Fewest Moves25 moves30.00
top 5.1%12 / 173
2×22.333.89
top 7.3%208 / 2,319
5×51:13.591:22.14
top 14.2%149 / 716
3×3 one-handed18.0419.85
top 15.2%219 / 966
Square-119.9326.98
top 27.9%130 / 371
Megaminx1:41.641:48.53
top 35.6%229 / 524
Clock22.27—
early days — 3 solves441 / 536

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

Korea Cube Championship 2010: 18.94Korean Championship 2011: 10.05Cubing Korea Xmas Eve 2011: 11.75Cubing Korea January 2012: 10.27Korean Style 2013: 9.15KAIST Fall 2014: 10.50Korea Winter 2015: 11.55Cube Is Good 2016: 11.24KAIST Spring 2017: 11.00Korean Championship 2019: 10.46Cubing Korea 2019: 9.84Seoul Summer 2022: 8.59Korean Championship 2022: 8.05KAIST Fall 2022: 10.11Rubik's WCA World Championship 2023: 11.29Daejeon Spring 2025: 9.388.0518.9423 Jan 201025 May 2025

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-1 Pyraminx single — 49 people have one; it is 0.98 away.
  • A sub-8 3×3 single — 7,931 people have one; it is 0.05 away.

Targets move as he improves.