People · United States
Jack Amster
2×2 · top 18.1% of 186,767 all-time · competing since June 2023 · 2023AMST02
Jack Amster has been competing for 3 years. His best event is the 2×2: a personal-best single of 3.33, set at Northern Kentucky 2024, puts him in the top 18.1% of the 186,767 people who have ever been ranked in the event, and 7,108th in the United States. Across 12 competitions since June 2023, he has put 223 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 14% around a typical one; 75% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 31.45 in June 2023 to 13.71, a 56% improvement. Jack has entered twelve competitions, more competitions than 94% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | United States | |
|---|---|---|---|---|---|
| 2×2 | 3.33 | 5.52 | top 18.1% | 7,108 / 40,951 | |
| 3×3 | 13.71 | 17.71 | top 20.0% | 10,734 / 59,724 | |
| Pyraminx | 8.79 | 14.59 | top 43.0% | 12,317 / 28,708 | |
| 3×3 one-handed | 30.12 | 35.57 | top 46.9% | 6,393 / 15,683 | |
| 4×4 | 1:26.69 | — | top 61.2% | 10,669 / 19,072 | |
| Skewb | 14.79 | 20.09 | top 77.6% | 14,790 / 18,907 | |
| Square-1 | 54.97 | 1:10.47 | top 80.3% | 5,352 / 6,743 | |
| Clock | 40.14 | — | top 93.3% | 8,372 / 8,927 |
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
- 3 May 2025First sub-20 3×3: 18.14 at Northern Kentucky 2025.
- 3 May 2025First sub-15 3×3: 13.71 at Northern Kentucky 2025.
- 15 Jun 2024Three personal bests in one day at Northern Kentucky 2024.
- 27 Apr 2024Three personal bests in one day at Cincinnati Speed Solving 2024.
- 17 Sep 2023Three personal bests in one day at Swoop in and Solve Oxford 2023.
- 9 Sep 2023First sub-30 3×3: 26.41 at Cubing by the Kings 2023.
Competitions
- Cincinnati Speedsolving 2026 · 21 Feb 2026 — 1 personal best set
- Cubing by the Kings OH 2025 · 24 Aug 2025 — 1 personal best set
- Cincinnati Open 2025 · 9 Aug 2025 — 2 personal bests set
- Northern Kentucky 2025 · 3 May 2025 — 2 personal bests set
- Cincinnati Speed Solving 2025 · 22 Feb 2025
- Northern Kentucky 2024 · 15 Jun 2024 — 3 personal bests set
- Cincinnati Speed Solving 2024 · 27 Apr 2024 — 3 personal bests set
- Mason Cube Challenge 2024 · 13 Apr 2024 — 2 personal bests set
- Swoop in Again Oxford 2023 · 19 Nov 2023
- Swoop in and Solve Oxford 2023 · 17 Sep 2023 — 3 personal bests set
- Cubing by the Kings 2023 · 9 Sep 2023 — 2 personal bests set
- MoreHead-to-Head 2023 · 3 Jun 2023
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.
- Harsha Paladugu — met in 48 rounds, never finished ahead
- Luke Garrett — met in 47 rounds, finished ahead once
- Carson Clark (张卡森) — met in 47 rounds, never finished ahead
Next targets
- A sub-3 2×2 single — 26,570 people have one; it is 0.33 away.
- A sub-12 3×3 single — 39,535 people have one; it is 1.71 away.
Targets move as he improves.