People · Republic of Korea
Seung-Ho Song (송승호)
Pyraminx · top 0.2% of 129,321 all-time · competing since September 2018 · 2018SONG36
Seung-Ho Song (송승호) has been competing for 8 years. His best event is the Pyraminx: a personal-best single of 1.27, set at Please Minx Korea 2025, puts him in the top 0.2% of the 129,321 people who have ever been ranked in the event, and 5th in Republic of Korea. Until January 2018, no official Pyraminx solve in the world had been that fast. Across 31 competitions since September 2018, he has put 640 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 15% around a typical one; 88% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His Pyraminx best has come down from 6.53 in September 2018 to 1.27, an 81% improvement. He has entered 31 competitions, more competitions than 98% 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 | |
|---|---|---|---|---|---|
| Pyraminx | 1.27 | 1.87 | top 0.2% | 5 / 1,271 | |
| 2×2 | 1.48 | 2.38 | top 2.1% | 59 / 2,319 | |
| 3×3 | 7.75 | 9.80 | top 2.4% | 142 / 4,352 | |
| Skewb | 2.70 | 4.92 | top 3.6% | 37 / 854 | |
| 4×4 | 31.54 | 37.09 | top 3.8% | 81 / 1,308 | |
| 5×5 | 1:02.24 | 1:06.25 | top 6.8% | 72 / 716 | |
| Megaminx | 55.94 | 1:00.16 | top 7.9% | 57 / 524 | |
| 7×7 | 3:21.12 | 3:30.60 | top 16.7% | 63 / 254 | |
| Square-1 | 15.28 | 24.08 | top 17.0% | 72 / 371 | |
| 6×6 | 2:14.56 | 2:20.07 | top 17.7% | 83 / 329 | |
| 3×3 one-handed | 24.10 | 28.51 | top 31.8% | 416 / 966 | |
| Clock | 13.08 | 16.84 | top 40.0% | 266 / 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 line so far
Best single per competition, Pyraminx. Faster is higher — the axis is the right way up.
The story so far
- 14 Dec 2024Four personal bests in one day at Seoul Winter 2024.
- 23 Nov 2024Five personal bests in one day at Hamchang Winter 2024.
- 18 Nov 2023Three personal bests in one day at Hamchang Open 2023.
- 20 Nov 2022Four personal bests in one day at KAIST Fall 2022.
- 12 Aug 2022First sub-10 3×3: 9.90 at Korean Championship 2022.
- 18 Dec 2021Three personal bests in one day at Korean Championship Mini 2021.
Competitions
- Korea Open 2026 · 15 Aug 2026
- Seoul Winter 2026 · 17 Jan 2026 — 1 personal best set
- Korean Championship 2025 · 27 Dec 2025
- Korea Open 2025 · 15 Aug 2025
- Please Big Cubes Korea 2025 · 10 May 2025
- Please Minx Korea 2025 · 5 Apr 2025 — 2 personal bests set
- Korea Newcomers AM 2025 · 8 Mar 2025
- Happy Suseong 2025 · 18 Jan 2025 — 1 personal best set
- Seoul Winter 2024 · 14 Dec 2024 — 4 personal bests set
- Hamchang Winter 2024 · 23 Nov 2024 — 5 personal bests set
- Daegu Autumn 2024 · 26 Oct 2024 — 1 personal best set
- Korean Championship 2024 · 15 Aug 2024
- Busan Spring 2024 · 6 Apr 2024 — 1 personal best set
- Korean Championship 2023 · 15 Dec 2023
- Hamchang Open 2023 · 18 Nov 2023 — 3 personal bests set
- Rubik's WCA World Championship 2023 · 12 Aug 2023
- Ansan Spring 2023 · 26 Mar 2023 — 1 personal best set
- Please Be Quiet Daegu 2023 · 25 Feb 2023
- KAIST Fall 2022 · 20 Nov 2022 — 4 personal bests set
- Daegu Hot Autumn 2022 · 17 Sep 2022 — 1 personal best set
- Korean Championship 2022 · 12 Aug 2022 — 2 personal bests set
- Korean Spring 2022 · 29 May 2022 — 1 personal best set
- Korean Championship Mini 2021 · 18 Dec 2021 — 3 personal bests set
- ByeolLae Open 2020 · 1 Feb 2020 — 2 personal bests set
- Cubing Korea 2019 · 28 Dec 2019
- Daegu Autumn Open 2019 · 13 Oct 2019 — 1 personal best set
- Cube Camp in Wonju 2019 · 20 Jul 2019 — 3 personal bests set
- Cubing Operating System Summer 2019 · 8 Jun 2019 — 1 personal best set
- Seoul Winter 2019 · 23 Feb 2019 — 5 personal bests set
- Busan Winter 2018 · 16 Dec 2018 — 1 personal best set
- CWR Fall 2018 · 29 Sep 2018
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 131 rounds, finished ahead 43 times
- Ko Youngjin (고영진) — met in 112 rounds, finished ahead 62 times
- Choi Goho (최고호) — met in 104 rounds, finished ahead 72 times
Next targets
- A sub-1 Pyraminx single — 49 people have one; it is 0.27 away.
- A sub-1 2×2 single — 1,032 people have one; it is 0.48 away.
Targets move as he improves.