Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Japan → Chinatsu Hayasaka (早坂知夏)

People · Japan

Chinatsu Hayasaka (早坂知夏)

3×3 · top 90.2% of 284,439 all-time · competing since March 2017 · 2017HAYA02

Chinatsu Hayasaka (早坂知夏) has been competing for 10 years. Her best event is the 3×3: a personal-best single of 57.06, set at Meguro 2017, puts her in the top 90.2% of the 284,439 people who have ever been ranked in the event, and 2,945th in Japan. Across 2 competitions since March 2017, she has put 13 official solves on the record across two events. Her 3×3 best has come down from 1:14.05 in March 2017 to 57.06, a 23% improvement. Chinatsu has entered two competitions.

3×3
best event — top 90.2% of 284,439 all-time
57.06
signature single · Meguro 2017
13
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×357.061:11.19
top 90.2%2,945 / 3,329
2×221.5531.58
top 96.5%997 / 1,021

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

Circles Open Spring 2017: 1:14.05Meguro 2017: 57.0657.061:14.054 Mar 20175 May 2017

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 her.

Next targets

  • A sub-50 3×3 single — 244,718 people have one; it is 7.06 away.
  • A sub-20 2×2 single — 178,436 people have one; it is 1.55 away.

Targets move as she improves.