People · Malaysia
Joshua Tham Chern Siew
3×3 · top 1.2% of 288,433 all-time · competing since March 2023 · 2023SIEW01
Joshua Tham Chern Siew has been competing for 4 years. His best event is the 3×3: a personal-best single of 6.88, set at 1 Shamelin Cube Open 2026, puts him in the top 1.2% of the 288,433 people who have ever been ranked in the event, and 50th in Malaysia. Until November 2010, no official 3×3 solve in the world had been that fast. Across 16 competitions since March 2023, he has put 617 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 13% around a typical one; 58% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 20.58 in March 2023 to 6.88, a 67% improvement. Joshua 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 | Malaysia | |
|---|---|---|---|---|---|
| 3×3 | 6.88 | 8.00 | top 1.2% | 50 / 3,825 | |
| 3×3 one-handed | 10.23 | 12.80 | top 1.2% | 15 / 1,350 | |
| 2×2 | 1.44 | 3.33 | top 1.9% | 43 / 2,582 | |
| 4×4 | 33.42 | 38.47 | top 5.4% | 85 / 1,228 | |
| Pyraminx | 4.20 | 6.38 | top 8.7% | 168 / 1,746 | |
| Skewb | 4.33 | 7.65 | top 13.3% | 144 / 1,065 | |
| 5×5 | 1:18.23 | 1:28.02 | top 17.9% | 155 / 623 | |
| Square-1 | 23.12 | 34.89 | top 35.0% | 155 / 365 | |
| Megaminx | 2:12.48 | 2:45.94 | top 52.6% | 323 / 519 |
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 Jul 2026Three personal bests in one day at Selangor Cube Open 2026.
- 18 Apr 2026Three personal bests in one day at 1 Shamelin Cube Open 2026.
- 28 Feb 2026Four personal bests in one day at XMUM Cube Open 2026.
- 1 Nov 2025Three personal bests in one day at Malaysia Cube Championship 2025.
- 31 May 2025Four personal bests in one day at gateway KLIA2 Cube Open 2025.
- 15 Feb 2025Seven personal bests in one day at XMUM Cube Open 2025.
Competitions
- Seremban Cube Challenge 2026 · 5 Sep 2026
- Kuala Lumpur Cubing Challenge 2026 · 22 Aug 2026 — 2 personal bests set
- Selangor Cube Open 2026 · 25 Jul 2026 — 3 personal bests set
- 1 Shamelin Cube Open 2026 · 18 Apr 2026 — 3 personal bests set
- XMUM Cube Open 2026 · 28 Feb 2026 — 4 personal bests set
- MyFamilyFest Speedcubing Challenge 2025 · 9 Nov 2025 — 2 personal bests set
- Malaysia Cube Championship 2025 · 1 Nov 2025 — 3 personal bests set
- gateway KLIA2 Cube Open 2025 · 31 May 2025 — 4 personal bests set
- Malaysia Newcomer 2025 · 15 Mar 2025
- XMUM Cube Open 2025 · 15 Feb 2025 — 7 personal bests set
- Rubik's WCA Asian Championship 2024 · 1 Nov 2024 — 3 personal bests set
- Malaysia 15th Anniversary Championship 2024 · 27 Jul 2024 — 7 personal bests set
- Sunway Velocity Mall Open 2024 · 25 May 2024 — 2 personal bests set
- UoSM Cube Open 2024 · 23 Mar 2024 — 4 personal bests set
- Selangor Ace Cube 2023 · 3 Jun 2023 — 1 personal best set
- Yong Jun KL Speedcubing 2023 · 10 Mar 2023
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.
- Lim Hung (林弘) — met in 90 rounds, finished ahead 4 times
- Leow Yi Jun (廖艺畯) — met in 88 rounds, finished ahead 37 times
- Cayden Teo — met in 86 rounds, finished ahead 53 times
Next targets
- A sub-6 3×3 single — 1,419 people have one; it is 0.88 away.
- A sub-10 3×3 one-handed single — 800 people have one; it is 0.23 away.
Targets move as he improves.