People · United States
Zach Ridall
Square-1 · top 0.13% of 25,272 all-time · competing since February 2018 · 2018RIDA01
Zach Ridall has been competing for 9 years. His best event is the Square-1: a personal-best single of 4.53, set at Happy Valley Spring PA 2026, puts him in the top 0.13% of the 25,272 people who have ever been ranked in the event, and 17th in the United States. Until April 2022, no official Square-1 solve in the world had been that fast. Across 113 competitions since February 2018, he has put 4,996 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 77% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 20.88 in February 2018 to 5.97, a 71% improvement. Zach has entered 113 competitions, more competitions than 99% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | United States | |
|---|---|---|---|---|---|
| Square-1 | 4.53 | 7.12 | top 0.13% | 17 / 6,743 | |
| 3×3 | 5.97 | 7.69 | top 0.47% | 309 / 59,724 | |
| Clock | 3.08 | 4.67 | top 0.83% | 81 / 8,927 | |
| 2×2 | 1.34 | 2.71 | top 1.5% | 611 / 40,951 | |
| Pyraminx | 2.23 | 5.36 | top 1.6% | 413 / 28,708 | |
| Skewb | 2.13 | 3.58 | top 1.7% | 248 / 18,907 | |
| 4×4 | 30.36 | 34.06 | top 3.0% | 492 / 19,072 | |
| 3×3 Fewest Moves | 25 moves | 34.00 | top 5.1% | 118 / 2,040 | |
| 5×5 | 59.42 | 1:07.15 | top 5.2% | 431 / 9,401 | |
| 6×6 | 1:49.97 | 1:58.45 | top 7.2% | 249 / 4,196 | |
| 3×3 one-handed | 14.84 | 18.76 | top 7.8% | 1,046 / 15,683 | |
| 3×3 blindfolded | 1:13.35 | 3:55.49 | top 17.2% | 331 / 2,092 | |
| Megaminx | 1:13.06 | 1:25.73 | top 17.5% | 1,185 / 7,841 | |
| 7×7 | 3:23.79 | 3:31.59 | top 17.6% | 490 / 3,184 |
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
- 14 Aug 2026Four personal bests in one day at Mid-Atlantic Speedcubing Championship 2026.
- 31 Dec 2023Three personal bests in one day at New York New Year 2024.
- 17 Dec 2022Six personal bests in one day at Pittsburgh Fall 2022.
- 5 Nov 2022Five personal bests in one day at Empire State Fall 2022.
- 3 Sep 2022Three personal bests in one day at Pretzel Mania 2022.
- 17 Jun 2022Four personal bests in one day at Pennsylvania Championship 2022.
Competitions
- Mid-Atlantic Speedcubing Championship 2026 · 14 Aug 2026 — 4 personal bests set
- Mid-Atlantic Warm-Up 2026 · 9 Aug 2026
- Rubik's WCA North American Championship 2026 · 2 Jul 2026
- Branchburg Bizarre Blocks 2026 · 27 Jun 2026 — 1 personal best set
- Mid-Atlantic Quiet Championship 2026 · 27 Jun 2026 — 2 personal bests set
- LCCC Cubing Summer 2026 · 6 Jun 2026 — 2 personal bests set
- Happy Valley Spring PA 2026 · 19 Apr 2026 — 1 personal best set
- Ephrata Spring 2026 · 11 Apr 2026
- Fort Lee Winter 2026 · 24 Jan 2026 — 1 personal best set
- FMC under the Mistletoe 2025 · 20 Dec 2025
- Christmas City Cubing PA 2025 · 4 Oct 2025
- Ephrata Fall 2025 · 27 Sep 2025 — 1 personal best set
- NxNything Goes Bloomsburg 2025 · 20 Sep 2025 — 1 personal best set
- Manhattan Megaminx Mayhem 2 2025 · 13 Sep 2025 — 1 personal best set
- CubingUSA Mid-Atlantic Championship 2025 · 30 Aug 2025
- Bucks County Cubing PM 2025 · 9 Aug 2025 — 1 personal best set
- Fort Lee Summer 2025 · 2 Aug 2025
- Rubik's WCA World Championship 2025 · 3 Jul 2025
- Summit Summer 2025 · 15 Jun 2025
- Berwick Spring 2025 · 14 Jun 2025 — 1 personal best set
- Puzzles in Pottsville Spring 2025 · 24 May 2025 — 1 personal best set
- CubingUSA Mid-Atlantic Quiet Championship 2025 · 18 May 2025
- East Berlin Eccentric Blocks PA 2025 · 17 May 2025
- American Dream NJ 2025 · 4 May 2025
- King of Prussia Spring 2025 · 3 May 2025 — 1 personal best set
- Tipping Point Bloomsburg 2025 · 19 Apr 2025
- Penn Cube Day Spring 2025 · 23 Mar 2025
- New-Cumberland County 2025 · 8 Mar 2025
- Happy Valley Spring PA 2025 · 1 Mar 2025
- PA-retzel Mania Winter 2025 · 22 Feb 2025
- Rutgers Winter 2025 · 25 Jan 2025
- Puzzles in Pottsville 2025 · 18 Jan 2025
- Pop Off Princeton 2025 · 11 Jan 2025 — 1 personal best set
- Happy Valley Fall PA 2024 · 1 Dec 2024
- ALL1- Empire State 2024 · 2 Nov 2024 — 2 personal bests set
- Cumberland County Fall 2024 · 26 Oct 2024 — 1 personal best set
- Christmas City Cubing PA 2024 · 6 Oct 2024 — 1 personal best set
- High Five Bloomsburg 2024 · 21 Sep 2024
- New York Championship 2024 · 14 Sep 2024 — 1 personal best set
- Hudson Valley Summer 2024 · 8 Sep 2024 — 1 personal best set
- New York Quiet Championship 2024 · 7 Sep 2024
- Pretzel Mania Summer 2024 · 31 Aug 2024
- Rubik's WCA North American Championship 2024 · 18 Jul 2024
- Bethesda Summer Showdown 2024 · 29 Jun 2024
- Pennsylvania Championship 2024 · 21 Jun 2024 — 1 personal best set
- Binghamton Cube Day 2024 · 16 Jun 2024
- ROC the Cube 2024 · 15 Jun 2024
- Puzzles in Pottsville 2024 · 8 Jun 2024
- Newark Academy Spring 2024 · 2 Jun 2024
- Pennsylvania Quiet Championship 2024 · 1 Jun 2024
- New Jersey Championship 2024 · 25 May 2024 — 2 personal bests set
- Wall Street Spring A 2024 · 19 May 2024 — 1 personal best set
- Berwick Spring 2024 · 18 May 2024 — 2 personal bests set
- North Jersey Speedsolving A 2024 · 11 May 2024 — 1 personal best set
- Spring into Summit 2024 · 4 May 2024
- It's About Time Bloomsburg 2024 · 27 Apr 2024
- New Jersey Quiet Championship 2024 · 14 Apr 2024 — 1 personal best set
- South Jersey Speedsolving 2024 · 13 Apr 2024 — 2 personal bests set
- Ridgefield Spring 2024 · 6 Apr 2024 — 1 personal best set
- Happy Valley Spring 2024 · 30 Mar 2024 — 1 personal best set
- Don't Pop Princeton 2024 · 23 Mar 2024
- New-Cumberland County 2024 · 9 Mar 2024 — 1 personal best set
- Penn Cube Day Spring 2024 · 2 Mar 2024
- PBs in Palisades 2024 · 17 Feb 2024
- Empire State Winter 2024 · 3 Feb 2024 — 2 personal bests set
- Parsippany Mini PM 2024 · 27 Jan 2024
- Troy Story 2024 · 21 Jan 2024 — 1 personal best set
- GCU Winter 2024 · 13 Jan 2024
- New York New Year 2024 · 31 Dec 2023 — 3 personal bests set
- Pittsburgh Be Quiet 2023 · 16 Dec 2023 — 1 personal best set
- Manhattan Mini D 2023 · 10 Dec 2023 — 1 personal best set
- Hudson Valley 2023 · 19 Nov 2023
- Princeton Fall 2023 · 18 Nov 2023
- Huntingdon Nod Don 2023 · 11 Nov 2023
- ALL1- Pittsburgh 2023 · 4 Nov 2023 — 2 personal bests set
- Marble City Cubing 2023 · 28 Oct 2023 — 2 personal bests set
- River Hill Fall 2023 · 21 Oct 2023
- Cumberland County Cubing 2023 · 14 Oct 2023
- Slow N Steady Fall 2023 · 7 Oct 2023
- Railroad City 2023 · 23 Sep 2023
- Berwick Fall 2023 · 16 Sep 2023
- Square-Fun in Bloomsburg 2023 · 9 Sep 2023 — 1 personal best set
- Pretzel Mania Summer 2023 · 2 Sep 2023 — 1 personal best set
- Newark's On Track 2023 · 26 Aug 2023
- CubingUSA Nationals 2023 · 27 Jul 2023
- CubingUSA Mid-Atlantic Championship 2023 · 17 Jun 2023 — 1 personal best set
- Wilmington Warmup 2023 · 3 Jun 2023
- North Jersey Speedsolving B 2023 · 21 May 2023
- GCU Spring 2023 · 6 May 2023 — 1 personal best set
- South Jersey Speedsolving 2023 · 22 Apr 2023
- Slow N Steady Spring 2023 · 15 Apr 2023
- Potomac Spring 2023 · 1 Apr 2023 — 1 personal best set
- Penn Cube Day Spring 2023 · 4 Mar 2023 — 2 personal bests set
- Pretzel Mania 2023 · 25 Feb 2023 — 1 personal best set
- Dunkirk Winter 2023 · 14 Jan 2023 — 2 personal bests set
- Pittsburgh Fall 2022 · 17 Dec 2022 — 6 personal bests set
- West Chester Fall 2022 · 10 Dec 2022 — 1 personal best set
- Empire State Fall 2022 · 5 Nov 2022 — 5 personal bests set
- Slow N Steady Fall 2022 · 29 Oct 2022
- Princeton Fall 2022 · 24 Sep 2022 — 1 personal best set
- Pretzel Mania 2022 · 3 Sep 2022 — 3 personal bests set
- St. Joseph's Prep 2022 · 20 Aug 2022 — 2 personal bests set
- Flower City Cube Fest 2022 · 30 Jul 2022 — 2 personal bests set
- Rubik's WCA North American Championship 2022 · 7 Jul 2022 — 2 personal bests set
- Pennsylvania Championship 2022 · 17 Jun 2022 — 4 personal bests set
- Happy Valley Spring 2022 · 26 Mar 2022 — 6 personal bests set
- Scranton Scramble 2020 · 18 Jan 2020
- No Place For DNF Fall 2019 · 9 Nov 2019 — 4 personal bests set
- CubingUSA Nationals 2019 · 1 Aug 2019 — 3 personal bests set
- Penn Cube Day Spring 2019 · 20 Apr 2019 — 4 personal bests set
- CubingUSA New Jersey Championship 2018 · 17 Nov 2018 — 5 personal bests set
- Pennsylvania 2018 · 17 Aug 2018 — 3 personal bests set
- Incredible Pencil Mania 2018 · 10 Feb 2018
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.
- Evan Liu — met in 579 rounds, finished ahead 152 times
- Shaun Mack — met in 542 rounds, finished ahead 61 times
- Hassan Khanani — met in 464 rounds, finished ahead 39 times · head to head
Next targets
- A sub-4 Square-1 single — 11 people have one; it is 0.53 away.
- A sub-5 3×3 single — 344 people have one; it is 0.97 away.
Targets move as he improves.