Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
Competitions → United States → Sioux Falls Winter 2021

Competitions · United States

Sioux Falls Winter 2021

Sioux Falls, South Dakota · 18 December 2021 · 7 events · 44 competitors · 51 personal bests

Matty Hiroto Inaba won five of the seven events (3×3, 4×4, 6×6) and the closest final was the Pyraminx, won by Marcus Kamen by 0.54 seconds. 44 competitors produced 51 personal bests, 9 of which still stand today, and 14 people held a competitor card for the first time.

The moment

The day's biggest improvement

Benjamin Iverson took a 3×3 one-handed single of 55.76 down to 19.13, 66 percent better in one day.

Five wins
Matty Hiroto Inaba — 3×3, 4×4, 6×6, 7×7, 3×3 one-handed
0.54s
closest final — Pyraminx, Marcus Kamen over Andres Rodriguez
51
personal bests set on the day

Winners & podiums

EventWinnerSingleAverage
3×3Matty Hiroto Inaba5.626.23
4×4Matty Hiroto Inaba22.7025.85
6×6Matty Hiroto Inaba1:38.251:41.62
7×7Matty Hiroto Inaba2:28.102:35.23
3×3 one-handedMatty Hiroto Inaba10.2711.42
PyraminxMarcus Kamen2.032.55
SkewbCarter Kucala1.452.17

The PB harvest

51 set · 9 still standing
  • David Mortenson — 3×3 one-handed single 15.73: into the top 9.6% of the event's history.
  • Benjamin Iverson — 3×3 one-handed single 19.13: into the top 18.2% of the event's history.
  • Joshua Eigenberg — Skewb single 5.10: into the top 18.9% of the event's history.
  • Joshua Eigenberg — 3×3 single 18.97: into the top 37.0% of the event's history.
  • Robert Horvath — 3×3 one-handed single 27.32: into the top 40.2% of the event's history.
  • Max Taylor — Pyraminx single 9.63: into the top 50.1% of the event's history.
  • Isaac Hlavnicka — 3×3 single 25.26: into the top 53.2% of the event's history.
  • Joshua Eigenberg — 4×4 single 1:17.16: into the top 53.5% of the event's history.

First-timers

14 people competed for the first time at this competition, joining the 4,438 people who made their debut in 2021. Start here explains what a first competition is like.

Records watch

No national, continental or world records were set at this competition. That is true of most competitions.

The field

44 competitors · 268 results · 7 events.

Solve this final yourself

how this works →

The 3×3 final here ran on one scramble group, so these five sequences are exactly what the finalists faced. Matty Hiroto Inaba won it with a 6.23 average. Hold your cube white centre up, green centre facing you, follow each sequence, and check against the pictures.

  1. 1L' B D F R D L2 B' R B' U2 F' B2 U2 R2 U2 D2 R2 B'
  2. 2D' B' R B2 U2 B' D2 R2 B2 U2 R2 B' R U' R2 U' B R' U R2
  3. 3U2 B2 L2 B2 L' B2 R' F' L D U' B2 L2 F' L' B' U2 L
  4. 4B' R' U' L F B2 R2 D R2 F2 R2 D2 F' D2 L2 F' U R2 B
  5. 5B2 R2 L2 D B R2 L F' R U2 L' D2 R' F2 R B2 D2 L2 U

solve 1

solve 2

solve 3

solve 4

solve 5

Race this final

Everyone who competed

44 competitors

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 final is a competition's last round; its order decides the podium · a DNF (did not finish) is an attempt with no valid result: a popped piece, an unsolved face, an over-limit memorisation · every solve starts from a computer-generated scramble, the same for every competitor in a round.