People · Hong Kong, China
Quincy Tang (鄧子謙)
4×4 · top 2.1% of 83,917 all-time · competing since August 2019 · 2019TANG28
Quincy Tang (鄧子謙) has been competing for 7 years. His best event is the 4×4: a personal-best single of 28.72, set at Penang One Bigger 2025, puts him in the top 2.1% of the 83,917 people who have ever been ranked in the event, and 18th in Hong Kong, China. Until April 2012, no official 4×4 solve in the world had been that fast. Across 10 competitions since August 2019, he has put 274 official solves on the record across six events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 70% of the 35,811 competitors with ten or more counted rounds. His 4×4 best has come down from 47.78 in August 2019 to 28.72, a 40% improvement. Quincy has entered ten competitions, more competitions than 92% 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 | |
|---|---|---|---|---|---|
| 4×4 | 28.72 | 33.95 | top 2.1% | 18 / 423 | |
| 3×3 | 8.11 | 9.49 | top 3.0% | 90 / 1,347 | |
| 5×5 | 55.90 | 1:01.35 | top 3.7% | 17 / 192 | |
| 7×7 | 2:30.44 | 2:34.06 | top 3.9% | 12 / 74 | |
| 2×2 | 1.88 | 2.51 | top 4.0% | 53 / 855 | |
| 6×6 | 1:42.45 | 1:50.26 | top 4.7% | 14 / 87 |
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, 4×4. Faster is higher — the axis is the right way up.
The story so far
- 28 Dec 2025Three personal bests in one day at Zhengzhou Zeal 2025.
- 10 Aug 2025Seven personal bests in one day at Penang One Bigger 2025.
- 18 Nov 2023Three personal bests in one day at Chongqing Open 2023.
- 24 Aug 2019First competition: Shenzhen Cubing 10th Anniversary 2019. A 10.70 3×3 single to start from.
- 24 Aug 2019First sub-10 3×3: 9.47 at Shenzhen Cubing 10th Anniversary 2019.
Competitions
- Guangzhou Big Cubes 2026 · 20 Jun 2026
- Zhengzhou Zeal 2025 · 28 Dec 2025 — 3 personal bests set
- Hong Kong Championship 2025 · 15 Nov 2025
- Penang One Bigger 2025 · 10 Aug 2025 — 7 personal bests set
- Hong Kong Cube Day 2025 · 7 Jun 2025 — 1 personal best set
- Hong Kong Cube Day 2024 · 31 Aug 2024 — 1 personal best set
- Shenzhen Nanshan Open 2024 · 22 Jun 2024 — 2 personal bests set
- Shenzhen Open 2023 · 24 Dec 2023 — 1 personal best set
- Chongqing Open 2023 · 18 Nov 2023 — 3 personal bests set
- Shenzhen Cubing 10th Anniversary 2019 · 24 Aug 2019 — 2 personal bests 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.
- Zijian Cai (蔡子健) — met in 52 rounds, finished ahead 6 times
- Shek Ho Hin (石灝軒) — met in 41 rounds, finished ahead 8 times
- Ivan Li Ka Leong (李嘉亮) — met in 40 rounds, finished ahead 3 times
Next targets
- A sub-25 4×4 single — 588 people have one; it is 3.72 away.
- A sub-8 3×3 single — 7,931 people have one; it is 0.11 away.
Targets move as he improves.