People · Italy
Letian Mattia Chang
3×3 · top 7.6% of 284,439 all-time · competing since September 2010 · 2010CHAN14
Letian Mattia Chang has been competing for 16 years. His best event is the 3×3: a personal-best single of 10.06, set at Italian Open 2012, puts him in the top 7.6% of the 284,439 people who have ever been ranked in the event, and 292nd in Italy. Until May 2007, no official 3×3 solve in the world had been that fast. Across 21 competitions since September 2010, he has put 539 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 13% around a typical one; 52% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 25.27 in September 2010 to 10.06, a 60% improvement. Letian has entered 21 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 | Italy | |
|---|---|---|---|---|---|
| 3×3 | 10.06 | 13.93 | top 7.6% | 292 / 2,882 | |
| 2×2 | 2.72 | 4.92 | top 11.1% | 329 / 2,068 | |
| Pyraminx | 7.50 | 12.92 | top 32.0% | 566 / 1,403 | |
| 4×4 | 1:04.41 | 1:11.12 | top 41.1% | 488 / 1,206 | |
| 3×3 one-handed | 29.80 | 40.47 | top 46.2% | 406 / 887 | |
| 3×3 Fewest Moves | 44 moves | — | early days — 2 solves | 162 / 266 | |
| Skewb | 12.75 | 21.31 | top 69.6% | 616 / 804 | |
| 5×5 | 2:57.83 | 3:07.32 | top 77.4% | 491 / 642 | |
| 3×3 blindfolded | 5:27.03 | — | top 83.0% | 205 / 244 | |
| Megaminx | 3:38.28 | — | top 85.6% | 468 / 544 | |
| 3×3 Multi-Blind | 1 of 2 cubes · 8:00 | — | early days — 2 solves | 88 / 100 |
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
- 9 Jun 2012Three personal bests in one day at Italian Open 2012.
- 29 Apr 2012Three personal bests in one day at Legnano Open 2012.
- 10 Mar 2012Five personal bests in one day at Milan Cube Open 2012.
- 17 Dec 2011Four personal bests in one day at Mantua Winter 2011.
- 4 Sep 2011First sub-15 3×3: 14.31 at Milan Blind Day 2011.
- 4 Sep 2011Five personal bests in one day at Milan Blind Day 2011.
Competitions
- Turin Winter Open 2019 · 12 Jan 2019 — 2 personal bests set
- Milan Saturday Open 2018 · 14 Apr 2018
- Turin Cube Day 2017 · 5 Mar 2017
- Milan Winter Open 2015 · 4 Jan 2015
- PoliMi Italian Open 2014 · 13 Dec 2014
- Bugella Open 2014 · 6 Sep 2014 — 2 personal bests set
- No Parity Open 2014 · 21 Jun 2014 — 1 personal best set
- Legnano Open 2014 · 24 May 2014 — 2 personal bests set
- Milan Winter Open 2014 · 12 Jan 2014 — 1 personal best set
- Legnano Open 2013 · 2 Nov 2013 — 2 personal bests set
- Big CubingItaly Open 2013 · 5 Oct 2013
- Milan Blind Day 2013 · 7 Sep 2013 — 1 personal best set
- Houston Winter 2013 · 5 Jan 2013 — 1 personal best set
- Shanghai Summer 2012 · 21 Jul 2012 — 2 personal bests set
- Italian Open 2012 · 9 Jun 2012 — 3 personal bests set
- Legnano Open 2012 · 29 Apr 2012 — 3 personal bests set
- Milan Cube Open 2012 · 10 Mar 2012 — 5 personal bests set
- Mantua Winter 2011 · 17 Dec 2011 — 4 personal bests set
- Milan Blind Day 2011 · 4 Sep 2011 — 5 personal bests set
- Mantua Spring 2011 · 12 Mar 2011 — 4 personal bests set
- Mediolanum Open 2010 · 12 Sep 2010
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.
- Marco Rota — met in 121 rounds, finished ahead 18 times
- Lorenzo Vigani Poli — met in 101 rounds, finished ahead 12 times
- Matteo Provasi — met in 97 rounds, finished ahead 13 times
Next targets
- A sub-10 3×3 single — 21,172 people have one; it is 0.06 away.
- A sub-2 2×2 single — 8,848 people have one; it is 0.72 away.
Targets move as he improves.