Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Republic of Korea → Siwoo Yoo

People · Republic of Korea

Siwoo Yoo

3×3 · top 57.3% of 284,439 all-time · competing since May 2019 · 2019YOOS01

Siwoo Yoo has been competing for 7 years. His best event is the 3×3: a personal-best single of 27.21, set at Korean Championship 2019, puts him in the top 57.3% of the 284,439 people who have ever been ranked in the event, and 2,864th in Republic of Korea. Across 4 competitions since May 2019, he has put 29 official solves on the record across two events. His 3×3 best has come down from 50.77 in May 2019 to 27.21, a 46% improvement. Siwoo has entered four competitions, more competitions than 78% of everyone who has ever competed.

3×3
best event — top 57.3% of 284,439 all-time
27.21
signature single · Korean Championship 2019
29
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
3×327.2133.28
top 57.3%2,864 / 4,352
2×28.2313.34
top 69.3%1,800 / 2,319

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

Play Cube X4 2019: 50.77Cubing Operating System Summer 2019: 41.19Cube Camp in Wonju 2019: 29.42Korean Championship 2019: 27.2127.2150.7711 May 201916 Aug 2019

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-25 3×3 single — 149,621 people have one; it is 2.21 away.
  • A sub-8 2×2 single — 126,624 people have one; it is 0.23 away.

Targets move as he improves.