People · Republic of Korea
Sungha Son (손성하)
Clock · top 5.2% of 32,048 all-time · competing since August 2025 · 2025SONS01
Sungha Son (손성하) has been competing for a year. His best event is the Clock: a personal-best single of 5.28, set at Korea Open 2025, puts him in the top 5.2% of the 32,048 people who have ever been ranked in the event, and 32nd in Republic of Korea. Until December 2011, no official Clock solve in the world had been that fast. Across 1 competition since August 2025, he has put 14 official solves on the record across one event.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Republic of Korea | |
|---|---|---|---|---|---|
| Clock | 5.28 | 6.47 | top 5.2% | 32 / 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 story so far
- 15 Aug 2025First competition: Korea Open 2025.
Competitions
- Korea Open 2025 · 15 Aug 2025 — 1 personal best set
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.
- Hyunmin Roh (노현민) — met in 3 rounds, finished ahead 3 times
- Minjun Kim (김민준) — met in 3 rounds, finished ahead twice
- On Yu (온유) — met in 3 rounds, finished ahead twice
Next targets
- A sub-5 Clock single — 1,421 people have one; it is 0.28 away.
Targets move as he improves.