People · Republic of Korea
Sihun Yoo
2×2 · top 2.6% of 186,767 all-time · competing since June 2024 · 2024YOOS02
Sihun Yoo has been competing for 2 years. His best event is the 2×2: a personal-best single of 1.61, set at Maple Ridge Favourites 2025, puts him in the top 2.6% of the 186,767 people who have ever been ranked in the event, and 77th in Republic of Korea. Until November 2008, no official 2×2 solve in the world had been that fast. Across 13 competitions since June 2024, he has put 403 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 13% around a typical one; 51% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. That figure sets aside his 10 DNFs. His 3×3 best has come down from 16.80 in June 2024 to 8.49, a 49% improvement. Sihun has entered 13 competitions, more competitions than 94% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Republic of Korea | |
|---|---|---|---|---|---|
| 2×2 | 1.61 | 2.20 | top 2.6% | 77 / 2,319 | |
| 3×3 | 8.49 | 10.50 | top 3.7% | 223 / 4,352 | |
| Pyraminx | 3.05 | 4.40 | top 3.8% | 69 / 1,271 | |
| Skewb | 2.79 | 5.04 | top 4.0% | 45 / 854 | |
| 4×4 | 39.93 | 43.12 | top 12.1% | 237 / 1,308 | |
| 3×3 one-handed | 17.94 | 24.86 | top 14.9% | 214 / 966 | |
| Megaminx | 1:37.15 | 1:48.57 | top 32.8% | 215 / 524 | |
| 3×3 blindfolded | 2:43.13 | — | early days — 2 solves | 115 / 217 |
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
Best single per competition, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 14 Jun 2025Five personal bests in one day at Warm Up Vancouver 2025.
- 22 Feb 2025First sub-10 3×3: 9.33 at Chill Cubing in Chilliwack 2025.
- 22 Feb 2025Three personal bests in one day at Chill Cubing in Chilliwack 2025.
- 19 Oct 2024Four personal bests in one day at Vancouver Southlands Sprint 2024.
- 16 Aug 2024First sub-15 3×3: 13.91 at BC Championship 2024.
- 16 Aug 2024Five personal bests in one day at BC Championship 2024.
Competitions
- Richmond Spring 2026 · 11 Apr 2026
- What Are the Odds Coquitlam 2025 · 22 Nov 2025
- Make Cutoff Maple Ridge 2025 · 6 Sep 2025
- Burnaby Summer 2025 · 17 Aug 2025 — 2 personal bests set
- White Rock's Back to Square-1 2025 · 12 Jul 2025
- Warm Up Vancouver 2025 · 14 Jun 2025 — 5 personal bests set
- Aldergrove Clock Fest 2025 · 19 Apr 2025 — 1 personal best set
- Chill Cubing in Chilliwack 2025 · 22 Feb 2025 — 3 personal bests set
- PR Time in Burnaby 2025 · 8 Feb 2025 — 2 personal bests set
- Maple Ridge Favourites 2025 · 4 Jan 2025 — 2 personal bests set
- Vancouver Southlands Sprint 2024 · 19 Oct 2024 — 4 personal bests set
- BC Championship 2024 · 16 Aug 2024 — 5 personal bests set
- Vancouver's on Tracks 2024 · 8 Jun 2024
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.
- Isaac Davies — met in 74 rounds, finished ahead 23 times
- Peter Barnwell — met in 74 rounds, finished ahead 6 times
- Naitik Kaushal — met in 73 rounds, finished ahead 30 times
Next targets
- A sub-1 2×2 single — 1,032 people have one; it is 0.61 away.
- A sub-8 3×3 single — 7,931 people have one; it is 0.49 away.
Targets move as he improves.