People · Republic of Korea
Chun Seung Jae (천승재)
3×3 · top 0.26% of 284,439 all-time · competing since July 2022 · 2022JAEC01
Chun Seung Jae (천승재) has been competing for 4 years. His best event is the 3×3: a personal-best single of 5.54, set at Korean Championship 2023, puts him in the top 0.26% of the 284,439 people who have ever been ranked in the event, and 19th in Republic of Korea. Until April 2015, no official 3×3 solve in the world had been that fast. Across 11 competitions since July 2022, he has put 301 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 17% around a typical one; 95% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 15.67 in July 2022 to 5.54, a 65% improvement. Chun has entered eleven competitions, more competitions than 93% 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 | 5.54 | 9.76 | top 0.26% | 19 / 4,352 | |
| 2×2 | 1.42 | 3.29 | top 1.8% | 50 / 2,319 | |
| Pyraminx | 2.49 | 3.69 | top 2.2% | 41 / 1,271 | |
| 4×4 | 34.46 | 41.98 | top 6.2% | 139 / 1,308 | |
| 5×5 | 1:08.38 | 1:17.04 | top 10.5% | 111 / 716 | |
| Skewb | 4.20 | 7.52 | top 12.3% | 128 / 854 | |
| 3×3 one-handed | 17.01 | 19.32 | top 12.6% | 177 / 966 | |
| Clock | 8.10 | 9.50 | top 15.7% | 110 / 536 | |
| 6×6 | 2:34.67 | 2:40.40 | top 28.0% | 127 / 329 | |
| Megaminx | 1:33.00 | 1:41.99 | top 30.1% | 196 / 524 | |
| 7×7 | 4:41.83 | 4:42.90 | top 45.1% | 143 / 254 | |
| 3×3 Fewest Moves | 41 moves | — | early days — 2 solves | 100 / 173 | |
| Square-1 | 50.13 | 4:19.23 | top 76.2% | 300 / 371 |
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
- 15 Dec 2023Six personal bests in one day at Korean Championship 2023.
- 18 Nov 2023First sub-10 3×3: 6.67 at Hamchang Open 2023.
- 18 Nov 2023Three personal bests in one day at Hamchang Open 2023.
- 12 Aug 2023Six personal bests in one day at Rubik's WCA World Championship 2023.
- 15 Apr 2023First sub-15 3×3: 10.17 at Daegu Hot Spring 2023.
- 15 Apr 2023Six personal bests in one day at Daegu Hot Spring 2023.
Competitions
- Daegu Cold Winter 2024 · 3 Feb 2024
- Seoul Open 2024 · 6 Jan 2024 — 1 personal best set
- Korean Championship 2023 · 15 Dec 2023 — 6 personal bests set
- Hamchang Open 2023 · 18 Nov 2023 — 3 personal bests set
- Ansan Autumn 2023 · 24 Sep 2023 — 2 personal bests set
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 6 personal bests set
- Seoul Spring 2023 · 7 May 2023 — 1 personal best set
- FMC Korea 2023 · 6 May 2023
- Daegu Hot Spring 2023 · 15 Apr 2023 — 6 personal bests set
- Ansan Spring 2023 · 26 Mar 2023 — 1 personal best set
- Seoul Summer 2022 · 23 Jul 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.
- DongSoo Park (박동수) — met in 66 rounds, finished ahead 6 times
- Minseo Gu (구민서) — met in 65 rounds, finished ahead 13 times
- Jang SeokWon (장석원) — met in 58 rounds, finished ahead 35 times
Next targets
- A sub-5 3×3 single — 344 people have one; it is 0.54 away.
- A sub-1 2×2 single — 1,032 people have one; it is 0.42 away.
Targets move as he improves.