People · Hong Kong, China
Jibrail Jason Lee Ka Ming (李嘉銘)
3×3 · top 3.6% of 288,433 all-time · competing since July 2017 · 2017LEEJ06
Jibrail Jason Lee Ka Ming (李嘉銘) has been competing for 9 years. His best event is the 3×3: a personal-best single of 8.40, set at Kitchener Mini Afternoon 2024, puts him in the top 3.6% of the 288,433 people who have ever been ranked in the event, and 115th in Hong Kong, China. Until July 2008, no official 3×3 solve in the world had been that fast. Across 16 competitions since July 2017, he has put 215 official solves on the record across three events. Solve to solve, his 3×3 times vary about 15% around a typical one; 80% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 24.50 in July 2017 to 8.40, a 66% improvement. Jibrail has entered 16 competitions, more competitions than 96% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Hong Kong, China | |
|---|---|---|---|---|---|
| 3×3 | 8.40 | 11.13 | top 3.6% | 115 / 1,424 | |
| 2×2 | 2.79 | 4.70 | top 12.0% | 151 / 880 | |
| 4×4 | 46.90 | 53.04 | top 20.7% | 163 / 447 |
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
- 1 Oct 2023First sub-10 3×3: 9.83 at Pickering Favourites Fall 2023.
- 26 Mar 2023First sub-15 3×3: 11.88 at Pickering D 2023.
- 26 Aug 2017First sub-20 3×3: 19.53 at Hong Kong Open 2017.
- 29 Jul 2017First competition: Bacolod Speedcubing Open 2017. A 24.50 3×3 single to start from.
Competitions
- Pickering NxNxN Summer 2025 · 21 Jun 2025
- Pickering Favourites Spring 2025 · 3 May 2025
- Greater Toronto 2025 · 9 Mar 2025
- Wrap It Up Barrie 2024 · 28 Dec 2024
- Kitchener Mini Afternoon 2024 · 19 Oct 2024 — 1 personal best set
- Pickering Mini Afternoon 2024 · 21 Sep 2024 — 1 personal best set
- Greater Toronto 2024 · 18 Feb 2024 — 2 personal bests set
- Pickering Favourites Autumn 2023 · 16 Dec 2023
- Scarborough Fall B 2023 · 19 Nov 2023 — 1 personal best set
- Pickering Fall A 2023 · 21 Oct 2023 — 1 personal best set
- Pickering Favourites Fall 2023 · 1 Oct 2023 — 2 personal bests set
- Markham 3x3x3 Afternoon 2023 · 29 Apr 2023 — 2 personal bests set
- Pickering D 2023 · 26 Mar 2023 — 2 personal bests set
- Hong Kong Open 2017 · 26 Aug 2017 — 1 personal best set
- Cavite Speedcubing Open 2017 · 5 Aug 2017 — 1 personal best set
- Bacolod Speedcubing Open 2017 · 29 Jul 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.
- Felix Kopyto — met in 29 rounds, finished ahead 27 times
- Burno Chak Kwan Li (李澤堃) — met in 26 rounds, never finished ahead
- Tin Huang — met in 23 rounds, never finished ahead
Next targets
- A sub-8 3×3 single — 8,101 people have one; it is 0.40 away.
- A sub-2 2×2 single — 9,039 people have one; it is 0.79 away.
Targets move as he improves.