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People → Japan → Chika Namikawa (浪川千華)

People · Japan

Chika Namikawa (浪川千華)

3×3 · top 31.5% of 284,439 all-time · competing since March 2009 · 2009NAMI01

Chika Namikawa (浪川千華) has been competing for 18 years. Her best event is the 3×3: a personal-best single of 17.16, set at Japan Open 2010, puts her in the top 31.5% of the 284,439 people who have ever been ranked in the event, and 1,239th in Japan. Across 29 competitions since March 2009, she has put 262 official solves on the record across four events. Solve to solve, her 3×3 times vary about 16% around a typical one; 91% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. Her 3×3 best has come down from 36.06 in March 2009 to 17.16, a 52% improvement. Chika has entered 29 competitions, more competitions than 98% of everyone who has ever competed.

3×3
best event — top 31.5% of 284,439 all-time
17.16
signature single · Japan Open 2010
262
official solves on the record
16%
solve-to-solve spread · wider than 91% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×317.1620.13
top 31.5%1,239 / 3,329
4×41:13.611:23.28
top 50.3%459 / 667
Pyraminx10.5614.84
top 57.3%493 / 688
Clock24.0532.44
top 74.8%238 / 263

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

Osaka Open 2009: 36.06JRCA Kansai Spring 2009: 25.65JRCA Kansai Summer 2009: 23.22Japan Open 2009: 18.40Toyama Open 2009: 20.75Doshisha Open 2009: 23.02JRCA Kanto Winter 2010: 18.71Japan Open 2010: 17.16JRCA Kansai Spring 2010: 17.25JRCA Kansai Summer 2010: 19.50Ishikawa Gokoku Shinto Shrine Open 2010: 19.31Kansai New Year 2011: 17.65Osaka 2011: 20.96West Japan Big Cubes 2011: 19.25Japan Open 2011: 21.52Cube Camp in Kanazawa 2011: 18.56World Rubik's Cube Championship 2011: 20.83Kyotanabe Open 2011: 18.58Hokuriku Eve 2011: 18.65Kansai New Year 2012: 19.96Kansai Open 2012: 18.96Matsudo Spring 2012: 20.13Kyotanabe Open 2012: 17.59Kansai Star Festival 2012: 19.33Cube Camp in Kanazawa 2012: 20.22East Osaka 2012: 20.88West Japan Big Cube 2012: 19.77Kansai Open 2013: 20.65Lake-Biwa Open 2013: 19.0917.1636.0628 Mar 200915 Jun 2013

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-15 3×3 single — 69,493 people have one; it is 2.16 away.
  • A sub-1:00 4×4 single — 30,601 people have one; it is 13.61 away.

Targets move as she improves.