People · China
Richard Jiankun Peng (彭健坤)
3×3 one-handed · top 0.6% of 73,695 all-time · competing since January 2019 · 2019PENG02
Richard Jiankun Peng (彭健坤) has been competing for 8 years. His best event is the 3×3 one-handed: a personal-best single of 9.19, set at Santa Barbara Cubing 2024, puts him in the top 0.6% of the 73,695 people who have ever been ranked in the event, and 48th in China. Until November 2013, no official 3×3 one-handed solve in the world had been that fast. Across 21 competitions since January 2019, he has put 649 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 14% around a typical one; 72% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 13.91 in January 2019 to 6.67, a 52% improvement. Richard has entered 21 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 | China | |
|---|---|---|---|---|---|
| 3×3 one-handed | 9.19 | 11.03 | top 0.6% | 48 / 5,922 | |
| 3×3 | 6.67 | 7.95 | top 1.0% | 371 / 28,153 | |
| 2×2 | 2.54 | 3.87 | top 9.3% | 1,383 / 15,796 | |
| 4×4 | 46.07 | 54.71 | top 19.6% | 2,119 / 5,926 | |
| Skewb | 8.12 | 12.85 | top 42.2% | 2,487 / 5,004 | |
| Pyraminx | 9.94 | 14.44 | top 52.5% | 5,496 / 10,224 | |
| Square-1 | 42.66 | 1:05.50 | top 68.6% | 1,138 / 1,362 | |
| 3×3 blindfolded | 6:38.20 | — | early days — 2 solves | 1,143 / 1,183 |
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 Nov 2021Three personal bests in one day at CubingUSA Western Championship 2021.
- 14 Nov 2021First sub-10 3×3: 8.68 at Babylon Fall 2021.
- 14 Nov 2021Five personal bests in one day at Babylon Fall 2021.
- 4 Aug 2019Three personal bests in one day at Dongguan Summer 2019.
- 23 Mar 2019Four personal bests in one day at GDSY Open 2019.
- 13 Jan 2019First competition: Dongguan Open 2019. A 14.53 3×3 single to start from.
Competitions
- UCLA Spring 2025 · 20 Apr 2025
- Santa Barbara Cubing 2024 · 6 Apr 2024 — 1 personal best set
- USC Cubing 2024 · 3 Feb 2024 — 2 personal bests set
- Bay Area Speedcubin' 54 Live - SSF 2023 · 5 Nov 2023
- South Jersey Speedsolving 2023 · 22 Apr 2023 — 1 personal best set
- Penn Cube Day Spring 2023 · 4 Mar 2023
- West Chester Fall 2022 · 10 Dec 2022
- Pretzel Mania 2022 · 3 Sep 2022
- St. Joseph's Prep 2022 · 20 Aug 2022 — 1 personal best set
- Pennsylvania Championship 2022 · 17 Jun 2022
- CubingUSA Northeast Championship 2022 · 27 May 2022 — 1 personal best set
- Princeton Spring 2022 · 7 May 2022
- Happy Valley Spring 2022 · 26 Mar 2022
- Empire State Winter A 2022 · 15 Jan 2022
- CubingUSA Western Championship 2021 · 26 Nov 2021 — 3 personal bests set
- Babylon Fall 2021 · 14 Nov 2021 — 5 personal bests set
- No Place For DNF Fall 2019 · 9 Nov 2019 — 1 personal best set
- Shenzhen Cubing 10th Anniversary 2019 · 24 Aug 2019
- Dongguan Summer 2019 · 4 Aug 2019 — 3 personal bests set
- GDSY Open 2019 · 23 Mar 2019 — 4 personal bests set
- Dongguan Open 2019 · 13 Jan 2019 — 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.
- Shaun Mack — met in 69 rounds, finished ahead 14 times
- Christopher Sun — met in 60 rounds, finished ahead 16 times
- Zayn Khanani — met in 51 rounds, finished ahead 13 times
Next targets
- A sub-8 3×3 one-handed single — 151 people have one; it is 1.19 away.
- A sub-6 3×3 single — 1,376 people have one; it is 0.67 away.
Targets move as he improves.