People · Republic of Korea
Seongjun Kang
3×3 · top 0.52% of 284,439 all-time · competing since September 2019 · 2019KANG11
Seongjun Kang has been competing for 7 years. His best event is the 3×3: a personal-best single of 6.06, set at Bay Area Speedcubin' 40 - San Ramon 2022, puts him in the top 0.52% of the 284,439 people who have ever been ranked in the event, and 39th in Republic of Korea. Until June 2011, no official 3×3 solve in the world had been that fast. Across 20 competitions since September 2019, he has put 649 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 14% around a typical one; 71% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 27.69 in September 2019 to 6.06, a 78% improvement. Seongjun has entered 20 competitions, more competitions than 97% 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 | 6.06 | 8.27 | top 0.52% | 39 / 4,352 | |
| 2×2 | 1.38 | 3.43 | top 1.6% | 40 / 2,319 | |
| Skewb | 2.15 | 3.29 | top 1.8% | 22 / 854 | |
| 4×4 | 30.83 | 36.31 | top 3.4% | 69 / 1,308 | |
| 3×3 one-handed | 13.44 | 17.53 | top 5.2% | 69 / 966 | |
| 5×5 | 1:14.59 | 1:25.72 | top 15.0% | 158 / 716 | |
| Pyraminx | 5.51 | 8.85 | top 16.5% | 260 / 1,271 | |
| 6×6 | 3:08.99 | 3:42.36 | top 45.2% | 182 / 329 |
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 Oct 2023Three personal bests in one day at Bay Area Speedcubin' 53 - Berkeley 2023.
- 30 Jun 2023Four personal bests in one day at CubingUSA Western Championship 2023.
- 5 Nov 2022Three personal bests in one day at Bay Area Speedcubin' 39 2022.
- 12 Aug 2022First sub-20 3×3: 7.11 at Korean Championship 2022.
- 12 Aug 2022First sub-15 3×3: 7.11 at Korean Championship 2022.
- 12 Aug 2022First sub-10 3×3: 7.11 at Korean Championship 2022.
Competitions
- San Ramon Fall 2025 · 20 Sep 2025
- Bay Area Speedcubin' 63 - Atherton 2024 · 22 Jun 2024 — 2 personal bests set
- Bay Area Speedcubin' 60 - Mountain View 2024 · 6 Apr 2024
- Berkeley Winter 2024 · 4 Feb 2024 — 1 personal best set
- Bay Area Speedcubin' 55 - San Ramon 2024 · 14 Jan 2024 — 1 personal best set
- Berkeley Fall 2023 · 18 Nov 2023 — 2 personal bests set
- Bay Area Speedcubin' 54 Live - SSF 2023 · 5 Nov 2023
- Bay Area Speedcubin' 53 - Berkeley 2023 · 14 Oct 2023 — 3 personal bests set
- Bay Area Speedcubin' 50 - Berkeley 2023 · 6 Aug 2023
- CubingUSA Western Championship 2023 · 30 Jun 2023 — 4 personal bests set
- SacCubing XIV 2023 · 20 May 2023 — 2 personal bests set
- Bay Area Speedcubin' 43 2023 · 1 Apr 2023
- Berkeley Spring 2023 · 12 Mar 2023
- Berkeley Winter A 2023 · 21 Jan 2023
- Bay Area Speedcubin' 40 - San Ramon 2022 · 4 Dec 2022 — 2 personal bests set
- Bay Area Speedcubin' 39 2022 · 5 Nov 2022 — 3 personal bests set
- Berkeley Fall 2022 · 10 Sep 2022 — 1 personal best set
- Korean Championship 2022 · 12 Aug 2022 — 4 personal bests set
- Bay Area Speedcubin' 21 2019 · 1 Dec 2019 — 2 personal bests set
- Berkeley Summer 2019 · 21 Sep 2019
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.
- Nico Harper (李有為) — met in 97 rounds, finished ahead 40 times
- Paul Mahvi — met in 97 rounds, finished ahead 18 times
- Varun Mohanraj — met in 96 rounds, finished ahead 4 times
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 0.06 away.
- A sub-1 2×2 single — 1,032 people have one; it is 0.38 away.
Targets move as he improves.