People · Ghana
Zaffery Hammond-Aryee
Skewb · top 6.8% of 74,164 all-time · competing since May 2022 · 2022HAMM04
Zaffery Hammond-Aryee has been competing for 4 years. His best event is the Skewb: a personal-best single of 3.34, set at Rubik's WCA World Championship 2025, puts him in the top 6.8% of the 74,164 people who have ever been ranked in the event, and 1st in Ghana. Until February 2014, no official Skewb solve in the world had been that fast. Across 9 competitions since May 2022, he has put 400 official solves on the record across ten events. Solve to solve, his 3×3 times vary about 14% around a typical one; 71% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 30.32 in May 2022 to 12.81, a 58% improvement. Zaffery 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 | Ghana | |
|---|---|---|---|---|---|
| Skewb | 3.34 | 4.63 | top 6.8% | 1 / 7 | |
| 3×3 | 12.81 | 14.38 | top 16.8% | 4 / 67 | |
| Pyraminx | 5.67 | 9.78 | top 17.6% | 1 / 17 | |
| Clock | 9.08 | 10.18 | top 20.3% | 1 / 1 | |
| 2×2 | 3.60 | 4.31 | top 21.5% | 1 / 39 | |
| 4×4 | 48.14 | 52.88 | top 22.4% | 1 / 6 | |
| 5×5 | 1:57.85 | 2:06.79 | top 48.1% | 1 / 2 | |
| Square-1 | 30.36 | 44.07 | top 50.1% | 1 / 1 | |
| 3×3 one-handed | 36.44 | 45.30 | top 59.9% | 2 / 3 | |
| Megaminx | 5:39.46 | — | early days — 1 solve | 5 / 5 |
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
- 24 Sep 2026Four personal bests in one day at GAN WCA African Championship 2026.
- 6 Sep 2026Three personal bests in one day at Kirstenhof Early Spring 2026.
- 3 Jul 2025Three personal bests in one day at Rubik's WCA World Championship 2025.
- 6 Apr 2025First sub-15 3×3: 14.26 at Mega Mania Cape Town 2025.
- 6 Apr 2025Five personal bests in one day at Mega Mania Cape Town 2025.
- 14 Dec 2024Seven personal bests in one day at Cape Cubes Challenge 2024.
Competitions
- GAN WCA African Championship 2026 · 24 Sep 2026 — 4 personal bests set
- Kirstenhof Early Spring 2026 · 6 Sep 2026 — 3 personal bests set
- Rubik's WCA World Championship 2025 · 3 Jul 2025 — 3 personal bests set
- Mega Mania Cape Town 2025 · 6 Apr 2025 — 5 personal bests set
- Puzzles in Pinehurst 2025 · 18 Jan 2025 — 2 personal bests set
- Cape Cubes Challenge 2024 · 14 Dec 2024 — 7 personal bests set
- Rubik's WCA African Championship 2024 · 21 Sep 2024 — 4 personal bests set
- Rubik's WCA African Championship 2022 · 7 Oct 2022 — 3 personal bests set
- Speedcubes Cape Town 2022 · 29 May 2022 — 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.
- Daniel Rush — met in 80 rounds, finished ahead 6 times
- Jesse Osburn — met in 79 rounds, finished ahead 4 times
- Daniel David Mizen — met in 64 rounds, finished ahead 14 times
Next targets
- A sub-3 Skewb single — 3,709 people have one; it is 0.34 away.
- A sub-12 3×3 single — 40,277 people have one; it is 0.81 away.
Targets move as he improves.