People · Mongolia
Bayarsaikhan Erdene-Ochir (Эрдэнэ-Очир Баярсайхан)
Pyraminx · top 5.9% of 130,891 all-time · competing since October 2017 · 2017ERDE01
Bayarsaikhan Erdene-Ochir (Эрдэнэ-Очир Баярсайхан) has been competing for 9 years. His best event is the Pyraminx: a personal-best single of 3.60, set at Rubik's WCA World Championship 2025, puts him in the top 5.9% of the 130,891 people who have ever been ranked in the event, and 56th in Mongolia. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 13 competitions since October 2017, he has put 497 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 75% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 14.78 in October 2017 to 9.67, a 35% improvement. Bayarsaikhan has entered 13 competitions, more competitions than 94% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Mongolia | |
|---|---|---|---|---|---|
| Pyraminx | 3.60 | 6.27 | top 5.9% | 56 / 1,585 | |
| 2×2 | 2.23 | 3.13 | top 6.5% | 55 / 1,734 | |
| 3×3 | 9.67 | 11.88 | top 6.6% | 84 / 2,024 | |
| Skewb | 4.97 | 7.29 | top 17.9% | 39 / 331 | |
| 4×4 | 44.93 | 50.40 | top 18.3% | 58 / 204 | |
| 5×5 | 1:25.77 | 1:33.95 | top 24.1% | 35 / 90 | |
| 3×3 one-handed | 23.38 | 27.33 | top 29.9% | 62 / 149 | |
| Clock | 15.88 | 20.29 | top 51.4% | 67 / 144 | |
| 3×3 blindfolded | 4:25.00 | — | top 73.5% | 21 / 30 |
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
- 3 Oct 2026Three personal bests in one day at Mongolian Open 2026.
- 15 Oct 2022Five personal bests in one day at Mongolia Championship 2022.
- 29 May 2022First sub-10 3×3: 9.67 at UB Puzzle Party 2022.
- 29 May 2022Seven personal bests in one day at UB Puzzle Party 2022.
- 21 Sep 2019Three personal bests in one day at Mongolia Open 2019.
- 28 Oct 2017First competition: Mongolia 2017. A 15.02 3×3 single to start from.
Competitions
- Mongolian Open 2026 · 3 Oct 2026 — 3 personal bests set
- Ulaanbaatar Summer 2026 · 22 Jun 2026 — 1 personal best set
- Mongolian Championship 2025 · 25 Oct 2025 — 1 personal best set
- Rubik's WCA World Championship 2025 · 3 Jul 2025 — 2 personal bests set
- Ulaanbaatar Nomad Mazaalai 2025 · 19 Apr 2025
- CubingMGL Lunar New Year 2025 · 22 Feb 2025 — 1 personal best set
- QY Mongolian Championship 2024 · 19 Oct 2024
- GAN Mongolian Open 2024 · 5 Oct 2024 — 2 personal bests set
- Mongolian Championship 2023 · 30 Sep 2023 — 1 personal best set
- Mongolia Championship 2022 · 15 Oct 2022 — 5 personal bests set
- UB Puzzle Party 2022 · 29 May 2022 — 7 personal bests set
- Mongolia Open 2019 · 21 Sep 2019 — 3 personal bests set
- Mongolia 2017 · 28 Oct 2017 — 1 personal best set
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.
- Uuganbayar Bayalagnasan (Баялагнасан Ууганбаяр) — met in 69 rounds, finished ahead 9 times
- Orgil Otgonbayar (Отгонбаяр Оргил) — met in 65 rounds, finished ahead once
- Amarsanaa Enkhbaatar — met in 64 rounds, finished ahead twice
Next targets
- A sub-3 Pyraminx single — 4,783 people have one; it is 0.60 away.
- A sub-2 2×2 single — 9,039 people have one; it is 0.23 away.
Targets move as he improves.