People · Japan
Takafumi Haseda (長谷田貴史)
3×3 · top 18.1% of 284,439 all-time · competing since July 2006 · 2006HASE01
Takafumi Haseda (長谷田貴史) has been competing for 20 years. His best event is the 3×3: a personal-best single of 13.19, set at UT Open 2011, puts him in the top 18.1% of the 284,439 people who have ever been ranked in the event, and 765th in Japan. Across 24 competitions since July 2006, he has put 164 official solves on the record across three events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 74% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 46.71 in July 2006 to 13.19, a 72% improvement. Takafumi has entered 24 competitions, more competitions than 97% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| 3×3 | 13.19 | 16.55 | top 18.1% | 765 / 3,329 | |
| 4×4 | 1:20.21 | 1:25.65 | top 56.1% | 493 / 667 | |
| 5×5 | 2:15.72 | 2:35.51 | top 58.6% | 301 / 420 |
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
Best single per competition, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 4 Oct 2008First sub-15 3×3: 14.68 at Japan Open 2008.
- 31 Mar 2007First sub-20 3×3: 18.80 at Osaka Rubik's Cube contest 2007.
- 12 Nov 2006First sub-30 3×3: 26.08 at Japanese Championship 2006.
- 30 Jul 2006First competition: Tokyo Open 2006. A 46.71 3×3 single to start from.
Competitions
- Tribox Open Winter 2017 · 14 Jan 2017
- Asian Championship 2014 · 1 Nov 2014
- Sapporo Open 2014 · 4 Oct 2014
- Shanghai Summer 2012 · 21 Jul 2012
- Tsukuba 2012 · 5 Feb 2012
- UT Open 2011 · 27 Nov 2011 — 1 personal best set
- Matsudo Autumn 2011 · 5 Nov 2011
- World Rubik's Cube Championship 2011 · 14 Oct 2011
- Japan Open 2011 · 30 Jul 2011
- Matsudo Spring 2011 · 10 Apr 2011
- UT Open 2010 · 21 Nov 2010
- Matsudo Open 2010 · 23 Oct 2010
- 30th Anniversary MegaHouse Cup 2010 · 24 Jul 2010 — 1 personal best set
- Alpha Cube BUAA Open 2010 · 9 May 2010
- Japan Open 2010 · 27 Mar 2010 — 1 personal best set
- Japan Open 2009 · 1 Aug 2009
- Osaka Open 2009 · 28 Mar 2009
- Japan Open 2008 · 4 Oct 2008 — 1 personal best set
- KCA Korea Open 2008 · 20 Jan 2008 — 1 personal best set
- KCRC Busan competition 2007 · 12 Aug 2007 — 1 personal best set
- Japan Open 2007 · 28 Jul 2007
- Osaka Rubik's Cube contest 2007 · 31 Mar 2007 — 1 personal best set
- Japanese Championship 2006 · 12 Nov 2006 — 2 personal bests set
- Tokyo Open 2006 · 30 Jul 2006
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.
- Sinpei Araki (荒木慎平) — met in 29 rounds, never finished ahead
- Fumiki Koseki (古関章記) — met in 27 rounds, finished ahead 9 times
- Yuji Suse (巣瀬雄史) — met in 24 rounds, finished ahead twice
Next targets
- A sub-12 3×3 single — 39,535 people have one; it is 1.19 away.
- A sub-1:00 4×4 single — 30,601 people have one; it is 20.21 away.
Targets move as he improves.