People · Republic of Korea
Yejun Cha
3×3 · top 20.2% of 284,439 all-time · competing since May 2022 · 2022CHAY01
Yejun Cha has been competing for 4 years. His best event is the 3×3: a personal-best single of 13.78, set at Rubik's WCA World Championship 2023, puts him in the top 20.2% of the 284,439 people who have ever been ranked in the event, and 1,096th in Republic of Korea. Across 3 competitions since May 2022, he has put 44 official solves on the record across five events. His 3×3 best has come down from 16.91 in May 2022 to 13.78, a 19% improvement. Yejun has entered three competitions, more competitions than 69% 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 | |
|---|---|---|---|---|---|
| 3×3 | 13.78 | 14.72 | top 20.2% | 1,096 / 4,352 | |
| Pyraminx | 6.44 | 10.46 | top 23.3% | 365 / 1,271 | |
| 2×2 | 4.33 | 5.69 | top 30.7% | 915 / 2,319 | |
| 4×4 | 1:15.17 | — | early days — 2 solves | 853 / 1,308 | |
| 3×3 one-handed | 37.29 | — | early days — 2 solves | 696 / 966 |
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
- 12 Aug 2023First sub-15 3×3: 13.78 at Rubik's WCA World Championship 2023.
- 14 May 2022First competition: GamMa Spring 2022. A 16.91 3×3 single to start from.
Competitions
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 1 personal best set
- German Nationals 2022 · 19 Aug 2022 — 2 personal bests set
- GamMa Spring 2022 · 14 May 2022
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.
- Achim Spies — met in 10 rounds, finished ahead twice
- Hannes Müller — met in 10 rounds, finished ahead once
- Kevin Gerhardt — met in 10 rounds, never finished ahead
Next targets
- A sub-12 3×3 single — 39,535 people have one; it is 1.78 away.
- A sub-6 Pyraminx single — 25,870 people have one; it is 0.44 away.
Targets move as he improves.