Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Mongolia → Bat-Erdene Sambuudolgor (Самбуудолгор Бат-Эрдэнэ)

People · Mongolia

Bat-Erdene Sambuudolgor (Самбуудолгор Бат-Эрдэнэ)

2×2 · top 2.9% of 186,767 all-time · competing since October 2016 · 2016SAMB04

Bat-Erdene Sambuudolgor (Самбуудолгор Бат-Эрдэнэ) has been competing for 10 years. His best event is the 2×2: a personal-best single of 1.67, set at Dornogovi Open 2018, puts him in the top 2.9% of the 186,767 people who have ever been ranked in the event, and 23rd in Mongolia. Until February 2008, no official 2×2 solve in the world had been that fast. Across 16 competitions since October 2016, he has put 828 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 10% around a typical one, steadier than 96% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 11.57 in October 2016 to 8.48, a 27% improvement. He has entered 16 competitions, more competitions than 96% of everyone who has ever competed.

2×2
best event — top 2.9% of 186,767 all-time
1.67
signature single · Dornogovi Open 2018
828
official solves on the record
10%
solve-to-solve spread · steadier than 96% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingMongolia
2×21.673.36
top 2.9%23 / 1,717
3×38.489.63
top 3.7%58 / 1,987
Pyraminx3.514.94
top 5.5%49 / 1,577
Megaminx53.7557.19
top 6.8%9 / 56
5×51:05.671:10.26
top 8.8%15 / 86
4×438.6343.92
top 10.5%31 / 196
7×73:11.583:29.15
top 13.8%5 / 16
3×3 one-handed17.6518.56
top 14.2%29 / 138
6×62:18.572:30.43
top 19.7%10 / 27
Skewb5.567.04
top 22.4%56 / 325
Clock11.2917.89
top 31.5%37 / 139

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

Asian Championship 2016: 11.57Xi'an New Year 2017: 10.53China Championship 2017: 10.12Mongolia 2017: 9.44Mongolia 2018: 10.42Baikal Cubing 2018: 10.48Siberian Athens 2018: 9.29Dornogovi Open 2018: 9.93Umnugovi Autumn 2018: 8.78Mongolia Championship 2019: 9.67Ulaanbaatar Spring 2019: 8.67Mongolia Open 2019: 9.18Dornogovi Cube Day 2019: 10.20Mongolia Championship 2022: 10.22Darkhan Winter 2022: 8.48Mongolian Championship 2023: 10.048.4811.571 Oct 201630 Sep 2023

Best single per competition, 3×3. Faster is higher — the axis is the right way up.

The story so far

Competitions

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.

Next targets

  • A sub-1 2×2 single — 1,032 people have one; it is 0.67 away.
  • A sub-8 3×3 single — 7,931 people have one; it is 0.48 away.

Targets move as he improves.