Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Japan → Seizirou Ito (伊藤征次郎)

People · Japan

Seizirou Ito (伊藤征次郎)

3×3 · top 28.6% of 284,439 all-time · competing since July 2005 · 2005ITOS01

Seizirou Ito (伊藤征次郎) has been competing for 21 years. His best event is the 3×3: a personal-best single of 16.26, set at Tokyo Open 2006, puts him in the top 28.6% of the 284,439 people who have ever been ranked in the event, and 1,144th in Japan. Across 3 competitions since July 2005, he has put 21 official solves on the record across one event. His 3×3 best has come down from 20.23 in July 2005 to 16.26, a 20% improvement. Seizirou has entered three competitions, more competitions than 69% of everyone who has ever competed.

3×3
best event — top 28.6% of 284,439 all-time
16.26
signature single · Tokyo Open 2006
21
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×316.2619.87
top 28.6%1,144 / 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

Kyoto Rubik's Cube contest 2005: 20.23Osaka Rubik's Cube contest 2006: 17.23Tokyo Open 2006: 16.2616.2620.2310 Jul 200530 Jul 2006

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 his.

Next targets

  • A sub-15 3×3 single — 69,493 people have one; it is 1.26 away.

Targets move as he improves.