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The Middle Three
People → Costa Rica → David Alfaro Estrada

People · Costa Rica

David Alfaro Estrada

3×3 · top 5.1% of 284,439 all-time · competing since March 2018 · 2018ESTR04

David Alfaro Estrada has been competing for 8 years. His best event is the 3×3: a personal-best single of 9.12, set at Grecia Open 2019, puts him in the top 5.1% of the 284,439 people who have ever been ranked in the event, and 23rd in Costa Rica. Until May 2008, no official 3×3 solve in the world had been that fast. Across 3 competitions since March 2018, he has put 142 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 14% around a typical one, an early reading from 7 counted rounds. That figure sets aside his 2 DNFs. His 3×3 best has come down from 12.77 in March 2018 to 9.12, a 29% improvement. David has entered three competitions, more competitions than 69% of everyone who has ever competed.

3×3
best event — top 5.1% of 284,439 all-time
9.12
signature single · Grecia Open 2019
142
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingCosta Rica
3×39.1211.06
top 5.1%23 / 367
2×22.704.33
top 10.9%33 / 307
4×443.3149.62
top 16.2%34 / 130
3×3 one-handed24.8829.24
top 33.9%58 / 135
Skewb9.3111.38
top 50.6%76 / 133
Pyraminx9.9913.41
top 52.9%127 / 225
Megaminx2:37.392:55.21
top 64.8%65 / 82
5×52:45.902:55.20
top 73.0%65 / 75

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

Bekubes Open 2018: 12.77Bekubes Gold 2019: 9.51Grecia Open 2019: 9.129.1212.7724 Mar 201821 Sep 2019

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-8 3×3 single — 7,931 people have one; it is 1.12 away.
  • A sub-2 2×2 single — 8,848 people have one; it is 0.70 away.

Targets move as he improves.