People · Republic of Korea
Dong Gyom Ryu (류동겸)
Pyraminx · top 2.1% of 130,891 all-time · competing since November 2025 · 2025RYUD01
Dong Gyom Ryu (류동겸) has been competing for 11 months. His best event is the Pyraminx: a personal-best single of 2.44, set at Ansan Autumn 2026, puts him in the top 2.1% of the 130,891 people who have ever been ranked in the event, and 38th in Republic of Korea. Until January 2011, no official Pyraminx solve in the world had been that fast. Across 6 competitions since November 2025, he has put 142 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 12% around a typical one, an early reading from 8 counted rounds. That figure sets aside his 2 DNFs. His Pyraminx best has come down from 4.09 in May 2026 to 2.44, a 40% improvement. Dong has entered six competitions, more competitions than 86% 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 | |
|---|---|---|---|---|---|
| Pyraminx | 2.44 | 3.08 | top 2.1% | 38 / 1,294 | |
| Skewb | 3.71 | 5.92 | top 9.1% | 100 / 874 | |
| 2×2 | 2.52 | 3.96 | top 9.2% | 276 / 2,334 | |
| 3×3 | 10.94 | 12.88 | top 10.4% | 598 / 4,390 | |
| Clock | 7.68 | 9.87 | top 13.6% | 92 / 541 | |
| 4×4 | 59.86 | 1:08.94 | top 36.4% | 631 / 1,316 | |
| 3×3 one-handed | 31.78 | 39.32 | top 50.8% | 628 / 981 |
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, Pyraminx. Faster is higher — the axis is the right way up.
The story so far
- 15 Aug 2026Three personal bests in one day at Korea Open 2026.
- 16 May 2026First sub-15 3×3: 10.94 at Hamoye Jinju 2026.
- 16 May 2026Four personal bests in one day at Hamoye Jinju 2026.
- 15 Nov 2025First competition: Uhseo Osong 2025. A 19.30 3×3 single to start from.
Competitions
- Ansan Autumn 2026 · 19 Sep 2026 — 2 personal bests set
- Korea Open 2026 · 15 Aug 2026 — 3 personal bests set
- Hamoye Jinju 2026 · 16 May 2026 — 4 personal bests set
- Seoul Spring 2026 · 22 Mar 2026 — 1 personal best set
- Seoul Winter 2026 · 17 Jan 2026 — 1 personal best set
- Uhseo Osong 2025 · 15 Nov 2025
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.
- Minjun Kim (김민준) — met in 28 rounds, finished ahead once
- Yoochan Hong (홍유찬) — met in 27 rounds, finished ahead 4 times
- Eunho Hwang (황은호) — met in 27 rounds, finished ahead 4 times
Next targets
- A sub-2 Pyraminx single — 1,497 people have one; it is 0.44 away.
- A sub-3 Skewb single — 3,709 people have one; it is 0.71 away.
Targets move as he improves.