People · Australia
Zac Chung
3×3 · top 1.3% of 284,439 all-time · competing since May 2025 · 2025CHUN09
Zac Chung has been competing for a year. His best event is the 3×3: a personal-best single of 7.02, set at Australian Nationals 2026, puts him in the top 1.3% of the 284,439 people who have ever been ranked in the event, and 148th in Australia. Until November 2010, no official 3×3 solve in the world had been that fast. Across 9 competitions since May 2025, he has put 369 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 64% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 9.80 in May 2025 to 7.02, a 28% improvement. Zac has entered nine competitions, more competitions than 91% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Australia | |
|---|---|---|---|---|---|
| 3×3 | 7.02 | 9.13 | top 1.3% | 148 / 11,709 | |
| 2×2 | 1.57 | 1.93 | top 2.5% | 203 / 8,567 | |
| 4×4 | 34.96 | 36.81 | top 6.7% | 174 / 3,051 | |
| 3×3 one-handed | 14.74 | 19.36 | top 7.6% | 175 / 2,659 | |
| Pyraminx | 4.04 | 5.50 | top 7.9% | 363 / 5,993 | |
| 5×5 | 1:09.74 | 1:10.56 | top 11.4% | 153 / 1,356 | |
| Megaminx | 1:10.23 | 1:14.83 | top 15.7% | 194 / 1,277 | |
| Skewb | 5.18 | 7.55 | top 19.5% | 511 / 3,534 | |
| Clock | 9.12 | 11.77 | top 20.6% | 234 / 1,095 |
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
- 9 Jul 2026Six personal bests in one day at Australian Nationals 2026.
- 30 Aug 2025Three personal bests in one day at Geelong Winter 2025.
- 26 Jul 2025Four personal bests in one day at Spark Melbourne July 2025.
- 31 May 2025First competition: VIC State Championship 2025. A 9.80 3×3 single to start from.
Competitions
- Australian Nationals 2026 · 9 Jul 2026 — 6 personal bests set
- Spark Melbourne Autumn Sunday 2026 · 24 May 2026
- North-East Melbourne March Saturday 2026 · 7 Mar 2026 — 1 personal best set
- Taiwan Championship 2025 · 19 Dec 2025 — 2 personal bests set
- Taoyuan Airport Cube Day 2025 · 29 Nov 2025
- The Big Cube Melbourne 2025 · 11 Oct 2025 — 1 personal best set
- Geelong Winter 2025 · 30 Aug 2025 — 3 personal bests set
- Spark Melbourne July 2025 · 26 Jul 2025 — 4 personal bests set
- VIC State Championship 2025 · 31 May 2025 — 1 personal best 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.
- Charlie Handley — met in 55 rounds, finished ahead 8 times
- Tommy Kiprillis — met in 55 rounds, finished ahead once
- Nicholas Mouratidis — met in 49 rounds, finished ahead once
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 1.02 away.
- A sub-1 2×2 single — 1,032 people have one; it is 0.57 away.
Targets move as he improves.