People · Vietnam
Nguyễn Hoàng Hải
4×4 · top 0.85% of 85,040 all-time · competing since July 2022 · 2022HAIN03
Nguyễn Hoàng Hải has been competing for 4 years. His best event is the 4×4: a personal-best single of 25.49, set at Vietnam Championship 2026, puts him in the top 0.85% of the 85,040 people who have ever been ranked in the event, and 16th in Vietnam. Until June 2013, no official 4×4 solve in the world had been that fast. Across 5 competitions since July 2022, he has put 365 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 70% of the 36,406 competitors with ten or more counted rounds. 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 | |
|---|---|---|---|---|---|
| 4×4 | 25.49 | 30.34 | top 0.85% | 16 / 1,071 | |
| 3×3 | 6.77 | 8.05 | top 1.1% | 52 / 2,920 | |
| Pyraminx | 2.30 | 3.27 | top 1.7% | 21 / 752 | |
| 5×5 | 49.86 | 54.09 | top 1.7% | 19 / 542 | |
| 2×2 | 1.46 | 2.65 | top 2.0% | 35 / 1,718 | |
| 3×3 one-handed | 11.30 | 14.02 | top 2.2% | 37 / 945 | |
| Megaminx | 44.41 | 47.54 | top 2.9% | 13 / 253 | |
| Skewb | 6.01 | 7.73 | top 25.9% | 157 / 534 | |
| Clock | 12.09 | 15.68 | top 35.4% | 95 / 204 |
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
- 14 Aug 2026Four personal bests in one day at Vietnam Championship 2026.
- 20 Sep 2025Four personal bests in one day at Hanoi Summer 2025.
- 19 Jul 2024Five personal bests in one day at Vietnam Championship 2024.
- 22 Jul 2023Seven personal bests in one day at Hanoi Summer 2023.
- 16 Jul 2022First competition: Ha Noi Summer 2022. A 8.59 3×3 single to start from.
- 16 Jul 2022Four personal bests in one day at Ha Noi Summer 2022.
Competitions
- Vietnam Championship 2026 · 14 Aug 2026 — 4 personal bests set
- Hanoi Summer 2025 · 20 Sep 2025 — 4 personal bests set
- Vietnam Championship 2024 · 19 Jul 2024 — 5 personal bests set
- Hanoi Summer 2023 · 22 Jul 2023 — 7 personal bests set
- Ha Noi Summer 2022 · 16 Jul 2022 — 4 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.
- Đặng Trần Diễn — met in 62 rounds, finished ahead 31 times
- Nông Quốc Duy — met in 59 rounds, finished ahead 39 times
- Hoàng Hà Thủy Tiên — met in 57 rounds, finished ahead 19 times
Next targets
- A sub-25 4×4 single — 614 people have one; it is 0.49 away.
- A sub-6 3×3 single — 1,419 people have one; it is 0.77 away.
Targets move as he improves.