Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Japan → Rihito Koshimizu

People · Japan

Rihito Koshimizu

2×2 · top 81.4% of 186,767 all-time · competing since November 2024 · 2024KOSH07

Rihito Koshimizu has been competing for a year. His best event is the 2×2: a personal-best single of 10.98, set at Bay Area Speedcubin' 66 - Belmont 2024, puts him in the top 81.4% of the 186,767 people who have ever been ranked in the event, and 891st in Japan. Across 1 competition since November 2024, he has put 10 official solves on the record across two events.

2×2
best event — top 81.4% of 186,767 all-time
10.98
signature single · Bay Area Speedcubin' 66 - Belmont 2024
10
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
2×210.9814.89
top 81.4%891 / 1,021
3×349.2859.90
top 85.5%2,805 / 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 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-10 2×2 single — 145,545 people have one; it is 0.98 away.
  • A sub-40 3×3 single — 218,634 people have one; it is 9.28 away.

Targets move as he improves.