Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Japan → Tatsunori Kamachi (蒲地竜矩)

People · Japan

Tatsunori Kamachi (蒲地竜矩)

3×3 · top 92.8% of 284,439 all-time · competing since December 2018 · 2018KAMA06

Tatsunori Kamachi (蒲地竜矩) has been competing for 8 years. His best event is the 3×3: a personal-best single of 1:03.32, set at Ayase 2019, puts him in the top 92.8% of the 284,439 people who have ever been ranked in the event, and 3,032nd in Japan. Across 2 competitions since December 2018, he has put 9 official solves on the record across one event. His 3×3 best has come down from 1:16.19 in December 2018 to 1:03.32, a 17% improvement. Tatsunori has entered two competitions.

3×3
best event — top 92.8% of 284,439 all-time
1:03.32
signature single · Ayase 2019
9
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×31:03.321:21.91
top 92.8%3,032 / 3,329

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

Japan Championship 2018: 1:16.19Ayase 2019: 1:03.321:03.321:16.1922 Dec 20182 Feb 2019

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.

Next targets

  • A sub-1:00 3×3 single — 260,367 people have one; it is 3.32 away.

Targets move as he improves.