People · Republic of Korea
Chanhwi Park (박찬휘)
2×2 · top 5.0% of 186,767 all-time · competing since January 2019 · 2019PARK01
Chanhwi Park (박찬휘) has been competing for 8 years. His best event is the 2×2: a personal-best single of 2.04, set at Daejeon Spring 2025, puts him in the top 5.0% of the 186,767 people who have ever been ranked in the event, and 137th in Republic of Korea. Until February 2008, no official 2×2 solve in the world had been that fast. Across 19 competitions since January 2019, he has put 380 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 15% around a typical one; 85% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 28.85 in January 2019 to 10.37, a 64% improvement. Chanhwi has entered 19 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 | |
|---|---|---|---|---|---|
| 2×2 | 2.04 | 3.28 | top 5.0% | 137 / 2,319 | |
| Pyraminx | 3.80 | 6.95 | top 6.7% | 111 / 1,271 | |
| 3×3 | 10.37 | 12.50 | top 8.6% | 492 / 4,352 | |
| 4×4 | 42.62 | 50.51 | top 15.3% | 291 / 1,308 | |
| 3×3 one-handed | 18.48 | 26.52 | top 16.4% | 233 / 966 | |
| Skewb | 4.82 | 10.19 | top 16.8% | 176 / 854 | |
| 5×5 | 1:24.65 | 1:28.23 | top 23.0% | 211 / 716 | |
| 6×6 | 2:37.81 | 2:48.45 | top 29.6% | 133 / 329 | |
| 7×7 | 4:12.65 | 4:30.82 | top 35.2% | 120 / 254 | |
| Clock | 12.52 | 17.78 | top 37.5% | 247 / 536 | |
| Megaminx | 1:46.00 | 1:54.71 | top 38.1% | 249 / 524 | |
| Square-1 | 25.35 | 29.81 | top 39.8% | 180 / 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
- 26 Oct 2024Three personal bests in one day at Daegu Autumn 2024.
- 3 Feb 2024Three personal bests in one day at Daegu Cold Winter 2024.
- 12 Aug 2023Three personal bests in one day at Rubik's WCA World Championship 2023.
- 23 Jul 2022First sub-15 3×3: 11.53 at Seoul Summer 2022.
- 23 Jul 2022Three personal bests in one day at Seoul Summer 2022.
- 13 Oct 2019First sub-20 3×3: 18.60 at Daegu Autumn Open 2019.
Competitions
- Korea Open 2025 · 15 Aug 2025 — 2 personal bests set
- Daejeon Spring 2025 · 25 May 2025 — 2 personal bests set
- Happy Suseong 2025 · 18 Jan 2025 — 1 personal best set
- Seoul Winter 2024 · 14 Dec 2024 — 1 personal best set
- Daegu Autumn 2024 · 26 Oct 2024 — 3 personal bests set
- Busan Spring 2024 · 6 Apr 2024
- Daegu Cold Winter 2024 · 3 Feb 2024 — 3 personal bests set
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 3 personal bests set
- Daegu Hot Spring 2023 · 15 Apr 2023 — 1 personal best set
- Ansan Spring 2023 · 26 Mar 2023
- KAIST Fall 2022 · 20 Nov 2022 — 2 personal bests set
- Cubing SimCheong Open 2022 · 29 Oct 2022 — 2 personal bests set
- Korean Championship 2022 · 12 Aug 2022
- Seoul Summer 2022 · 23 Jul 2022 — 3 personal bests set
- ByeolLae Open 2020 · 1 Feb 2020 — 1 personal best set
- Cubing Korea 2019 · 28 Dec 2019
- Daegu Autumn Open 2019 · 13 Oct 2019 — 2 personal bests set
- Cube Camp in Wonju 2019 · 20 Jul 2019 — 1 personal best set
- Korea Winter 2019 · 19 Jan 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.
- Ko Youngjin (고영진) — met in 82 rounds, finished ahead 15 times
- DongSoo Park (박동수) — met in 82 rounds, finished ahead once
- Choi Goho (최고호) — met in 77 rounds, finished ahead 24 times
Next targets
- A sub-2 2×2 single — 8,848 people have one; it is 0.04 away.
- A sub-3 Pyraminx single — 4,700 people have one; it is 0.80 away.
Targets move as he improves.