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The Middle Three
People → New Zealand → Jim Zhu

People · New Zealand

Jim Zhu

3×3 one-handed · top 0.44% of 74,621 all-time · competing since July 2017 · 2017ZHUJ06

Jim Zhu has been competing for 9 years. His best event is the 3×3 one-handed: a personal-best single of 8.83, set at Melbourne Summer 2026, puts him in the top 0.44% of the 74,621 people who have ever been ranked in the event, and 9th in New Zealand. Until November 2014, no official 3×3 one-handed solve in the world had been that fast. Across 36 competitions since July 2017, he has put 1,143 official solves on the record across 16 events. Solve to solve, his 3×3 times vary about 15% around a typical one; 88% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 15.22 in July 2017 to 7.89, a 48% improvement. Jim has entered 36 competitions, more competitions than 99% of everyone who has ever competed.

3×3 one-handed
best event — top 0.44% of 74,621 all-time
8.83
signature single · Melbourne Summer 2026
1,143
official solves on the record
15%
solve-to-solve spread · wider than 88% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingNew Zealand
3×3 one-handed8.8311.86
top 0.44%9 / 607
4×428.5031.53
top 2.0%26 / 745
3×37.899.19
top 2.6%83 / 2,145
5×554.911:01.29
top 3.4%19 / 364
3×3 blindfolded29.1243.70
top 3.9%10 / 86
2×22.283.46
top 6.9%153 / 1,627
3×3 Fewest Moves27 moves45.00
top 8.0%12 / 111
3×3 Multi-Blind16 of 17 cubes · 54:35—
top 8.4%11 / 49
6×62:11.592:17.70
top 16.2%31 / 150
Megaminx1:14.091:19.57
top 18.1%74 / 284
7×73:25.423:36.23
top 18.2%27 / 126
4×4 blindfolded4:52.18—
early days — 3 solves8 / 23
Pyraminx6.519.93
top 24.0%339 / 1,149
Square-118.2825.02
top 24.1%73 / 254
Clock9.91—
early days — 3 solves98 / 319
Skewb7.9210.86
top 40.7%299 / 670

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

SNZ Northern 2017: 15.22New Zealand Nationals 2017: 13.01Wellington Winter 2018: 13.73New Zealand Nationals 2018: 11.73Mind Games 2019: 10.94Oceania 10th Anniversary 2019: 10.07WCA World Championship 2019: 11.13New Zealand Nationals 2019: 10.47Wellington Mind Games 2020: 12.62Tauranga Open 2023: 11.07Australian Nationals 2024: 9.86Puzzling Parramatta 2024: 8.33Sydney Spring Saturday 2024: 9.20Rubik's WCA Oceanic Championship 2024: 9.31Cubing at The Cube 2025: 9.82Tramsheds IV: Summer Sunday 2025: 9.78Rubik's WCA World Championship 2025: 10.00Cubing at The Cube 2026: 9.18Melbourne Summer 2026: 8.74Wagga Autumn 2026: 7.92Tramsheds IX: June Saturday 2026: 8.06Australian Nationals 2026: 8.55Tramsheds X: Winter Sunday 2026: 8.96Astana NxNxN 2026: 8.02Thirroul Beachside Twist 2026: 7.897.8915.2223 Jul 201717 Oct 2026

Best single per competition, 3×3. Faster is higher — the axis is the right way up.

The story so far

Competitions

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.

Next targets

  • A sub-8 3×3 one-handed single — 155 people have one; it is 0.83 away.
  • A sub-25 4×4 single — 614 people have one; it is 3.50 away.

Targets move as he improves.