People · United States
Jack Leffke
Pyraminx · top 17.5% of 130,891 all-time · competing since November 2022 · 2022LEFF01
Jack Leffke has been competing for 4 years. His best event is the Pyraminx: a personal-best single of 5.66, set at Rocky Top 2023, puts him in the top 17.5% of the 130,891 people who have ever been ranked in the event, and 4,729th in the United States. Across 4 competitions since November 2022, he has put 100 official solves on the record across eight events. His Pyraminx best has come down from 8.91 in November 2022 to 5.66, a 36% improvement. Jack has entered four competitions, more competitions than 78% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | United States | |
|---|---|---|---|---|---|
| Pyraminx | 5.66 | 9.38 | top 17.5% | 4,729 / 29,168 | |
| 3×3 | 28.45 | 35.29 | top 59.8% | 36,077 / 60,666 | |
| 2×2 | 7.66 | 11.60 | top 65.5% | 27,476 / 41,674 | |
| Skewb | 12.33 | 19.05 | top 67.7% | 12,848 / 19,164 | |
| 4×4 | 1:47.36 | — | top 75.2% | 13,919 / 19,354 | |
| Clock | 26.15 | 35.99 | top 78.7% | 7,128 / 9,172 | |
| 5×5 | 3:29.92 | — | top 86.5% | 8,152 / 9,537 | |
| Megaminx | 3:48.28 | — | top 87.9% | 7,241 / 8,026 |
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, Pyraminx. Faster is higher — the axis is the right way up.
The story so far
- 2 Dec 2023Six personal bests in one day at Rocky Top 2023.
- 4 Nov 2023Three personal bests in one day at North Carolina Championship 2023.
- 15 Apr 2023First sub-30 3×3: 28.45 at CubingUSA Southeast Championship 2023.
- 15 Apr 2023Three personal bests in one day at CubingUSA Southeast Championship 2023.
- 12 Nov 2022First competition: Carolina Clock 'Stravaganza 2022. A 30.31 3×3 single to start from.
Competitions
- Rocky Top 2023 · 2 Dec 2023 — 6 personal bests set
- North Carolina Championship 2023 · 4 Nov 2023 — 3 personal bests set
- CubingUSA Southeast Championship 2023 · 15 Apr 2023 — 3 personal bests set
- Carolina Clock 'Stravaganza 2022 · 12 Nov 2022
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.
- Jacob Ambrose — met in 27 rounds, never finished ahead
- Katie Hull — met in 27 rounds, never finished ahead
- Orion Leavitt-Lytle — met in 27 rounds, never finished ahead
Next targets
- A sub-5 Pyraminx single — 17,242 people have one; it is 0.66 away.
- A sub-25 3×3 single — 151,957 people have one; it is 3.45 away.
Targets move as he improves.