People · Vietnam
Tôn Hữu Đăng Khoa
3×3 · top 14.6% of 288,433 all-time · competing since January 2019 · 2019KHOA02
Tôn Hữu Đăng Khoa has been competing for 8 years. His best event is the 3×3: a personal-best single of 12.17, set at HCMC VNC Warm Up 2025, puts him in the top 14.6% of the 288,433 people who have ever been ranked in the event, and 871st in Vietnam. Across 5 competitions since January 2019, he has put 77 official solves on the record across five events. Solve to solve, his 3×3 times vary about 17% around a typical one, an early reading from 5 counted rounds. His 3×3 best has come down from 19.36 in January 2019 to 12.17, a 37% improvement. He has entered five competitions, more competitions than 83% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Vietnam | |
|---|---|---|---|---|---|
| 3×3 | 12.17 | 15.30 | top 14.6% | 871 / 2,920 | |
| 3×3 one-handed | 21.19 | 24.18 | top 23.8% | 353 / 945 | |
| 2×2 | 3.81 | 5.05 | top 24.1% | 528 / 1,718 | |
| 4×4 | 56.85 | 1:08.09 | top 33.0% | 529 / 1,071 | |
| Megaminx | 1:52.36 | 1:57.90 | top 41.8% | 128 / 253 |
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
- 12 Apr 2025Three personal bests in one day at HCMC VNC Warm Up 2025.
- 15 Dec 2024First sub-15 3×3: 12.81 at cubingHCM 3x3 Winter 2024.
- 20 Jan 2019First competition: Ho Chi Minh Let's Cube 2019. A 19.36 3×3 single to start from.
Competitions
- Vietnam Championship 2025 · 15 Aug 2025 — 1 personal best set
- HCMC VNC Warm Up 2025 · 12 Apr 2025 — 3 personal bests set
- cubingHCM 3x3 Winter 2024 · 15 Dec 2024 — 2 personal bests set
- Ho Chi Minh City Open 2019 · 13 Jul 2019 — 1 personal best set
- Ho Chi Minh Let's Cube 2019 · 20 Jan 2019
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.
- Lê Hà Phong — met in 16 rounds, never finished ahead
- Nguyễn Xuân Đức — met in 15 rounds, finished ahead twice
- Nguyễn Tuấn Công — met in 15 rounds, never finished ahead
Next targets
- A sub-12 3×3 single — 40,277 people have one; it is 0.17 away.
- A sub-20 3×3 one-handed single — 15,318 people have one; it is 1.19 away.
Targets move as he improves.