People · Mongolia
Erkhembileg Byambaa
Pyraminx · top 1.4% of 129,321 all-time · competing since October 2017 · 2017BYAM02
Erkhembileg Byambaa has been competing for 9 years. His best event is the Pyraminx: a personal-best single of 2.15, set at CubingMGL Coldest Capital 2025, puts him in the top 1.4% of the 129,321 people who have ever been ranked in the event, and 7th in Mongolia. Until July 2011, no official Pyraminx solve in the world had been that fast. Across 12 competitions since October 2017, he has put 540 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 55% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 9.73 in October 2017 to 8.36, a 14% improvement. Erkhembileg has entered twelve 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 | 2.15 | 3.87 | top 1.4% | 7 / 1,577 | |
| 4×4 | 30.41 | 37.40 | top 3.1% | 10 / 196 | |
| 3×3 | 8.36 | 11.20 | top 3.4% | 53 / 1,987 | |
| 5×5 | 1:02.72 | 1:06.98 | top 7.0% | 12 / 86 | |
| 2×2 | 2.83 | 4.09 | top 12.3% | 107 / 1,717 | |
| 3×3 one-handed | 17.64 | 23.79 | top 14.2% | 28 / 138 | |
| Megaminx | 1:20.46 | 1:31.06 | top 22.1% | 21 / 56 | |
| 6×6 | 3:02.36 | 3:30.83 | early days — 3 solves | 16 / 27 |
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
- 25 Jan 2025Five personal bests in one day at CubingMGL Coldest Capital 2025.
- 26 Jan 2019Four personal bests in one day at Mongolia Championship 2019.
- 20 Oct 2018Four personal bests in one day at Dornogovi Open 2018.
- 21 Apr 2018Three personal bests in one day at Mongolia 2018.
- 28 Oct 2017First competition: Mongolia 2017. A 9.73 3×3 single to start from.
Competitions
- MR Ulaanbaatar 2025 · 6 Dec 2025
- Darkhan Kodomo Winter Cup 2025 · 29 Nov 2025
- CubingMGL Coldest Capital 2025 · 25 Jan 2025 — 5 personal bests set
- Ulaanbaatar Winter 2024 · 30 Nov 2024 — 1 personal best set
- QY Mongolian Championship 2024 · 19 Oct 2024 — 2 personal bests set
- Ulaanbaatar Cubing Challenge Dec 2023 · 16 Dec 2023
- Mongolia Championship 2022 · 15 Oct 2022
- Ulaanbaatar Spring 2019 · 5 May 2019
- Mongolia Championship 2019 · 26 Jan 2019 — 4 personal bests set
- Dornogovi Open 2018 · 20 Oct 2018 — 4 personal bests set
- Mongolia 2018 · 21 Apr 2018 — 3 personal bests set
- Mongolia 2017 · 28 Oct 2017
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.
- Myagmardorj Ulziijargal (Өлзийжаргал Мягмардорж) — met in 78 rounds, finished ahead 14 times
- Amarsanaa Enkhbaatar — met in 72 rounds, finished ahead 34 times
- Orgil Otgonbayar (Отгонбаяр Оргил) — met in 71 rounds, finished ahead 27 times
Next targets
- A sub-2 Pyraminx single — 1,476 people have one; it is 0.15 away.
- A sub-30 4×4 single — 2,388 people have one; it is 0.41 away.
Targets move as he improves.