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People · United Kingdom

Sebastian Costa

3×3 · top 5.6% of 284,439 all-time · competing since October 2022 · 2022COST12

Sebastian Costa has been competing for 4 years. His best event is the 3×3: a personal-best single of 9.30, set at Crewe Spring 2025, puts him in the top 5.6% of the 284,439 people who have ever been ranked in the event, and 412th in the United Kingdom. Until February 2008, no official 3×3 solve in the world had been that fast. Across 32 competitions since October 2022, he has put 1,041 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 87% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 29.50 in October 2022 to 9.30, a 68% improvement. Sebastian has entered 32 competitions, more competitions than 98% of everyone who has ever competed.

3×3
best event — top 5.6% of 284,439 all-time
9.30
signature single · Crewe Spring 2025
1,041
official solves on the record
11%
solve-to-solve spread · steadier than 87% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited Kingdom
3×39.3011.36
top 5.6%412 / 6,689
2×22.174.08
top 6.0%429 / 4,895
Clock6.207.83
top 7.9%105 / 1,232
4×439.2746.30
top 11.3%263 / 2,071
Pyraminx4.927.48
top 12.7%492 / 3,656
Skewb4.728.50
top 16.1%378 / 2,421
Square-117.4522.12
top 22.0%212 / 778
5×51:26.701:34.53
top 24.7%329 / 1,151
3×3 one-handed22.4329.04
top 27.2%491 / 1,851
Megaminx1:59.202:11.67
top 45.2%519 / 966
6×63:53.014:05.20
early days — 3 solves368 / 548

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

Chippenham Autumn 2022: 29.50Kewbz UK Championship 2022: 29.48Wiltshire Winter 2023: 24.85Lincolnshire Winter 2023: 27.70Wiltshire Spring 2023: 26.60Stevenage May 2023: 13.87Wiltshire Summer 2023: 17.81No Triangle in Dębica 2023: 17.31Stevenage September 2023: 14.17Rubik's UK Championship 2023: 16.84Wiltshire December 2023: 14.63Bristol Winter 2024: 14.59Wiltshire March 2024: 14.35Crewe Spring 2024: 14.89Weston-super-Mare Spring 2024: 12.59Stevenage June 2024: 11.95Bristol Summer 2024: 12.68Rubik's WCA European Championship 2024: 13.84Lincolnshire Summer 2024: 13.96Wiltshire September 2024: 12.50Rubik's UK Championship 2024: 13.49Weston-super-Mare Autumn 2024: 13.32Wiltshire November 2024: 10.49Weston-super-Mare Winter 2025: 9.52Crewe Winter 2025: 11.32Wiltshire Spring 2025: 11.96Crewe Spring 2025: 9.30Bristol June 2025: 11.36Rubik's UK Championship 2025: 11.30Kewbz UK Championship 2026: 10.209.3029.508 Oct 202228 Aug 2026

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 1.30 away.
  • A sub-2 2×2 single — 8,848 people have one; it is 0.17 away.

Targets move as he improves.