People · Canada
Rianna Mercer
Skewb · top 6.7% of 73,281 all-time · competing since January 2025 · 2025MERC01
Rianna Mercer has been competing for a year. Her best event is the Skewb: a personal-best single of 3.33, set at Waterloo Winter 2025, puts her in the top 6.7% of the 73,281 people who have ever been ranked in the event, and 127th in Canada. Until February 2014, no official Skewb solve in the world had been that fast. Across 5 competitions since January 2025, she has put 126 official solves on the record across ten events. Solve to solve, her 3×3 times vary about 13% around a typical one; 56% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. Her 3×3 best has come down from 17.15 in January 2025 to 14.35, a 16% improvement. Rianna has entered five competitions, more competitions than 83% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Canada | |
|---|---|---|---|---|---|
| Skewb | 3.33 | 5.97 | top 6.7% | 127 / 2,907 | |
| 3×3 | 14.35 | 16.96 | top 22.2% | 2,127 / 10,392 | |
| Pyraminx | 7.30 | 11.28 | top 30.3% | 1,339 / 4,858 | |
| Clock | 14.86 | 20.09 | top 47.4% | 427 / 1,029 | |
| 4×4 | 1:13.86 | 1:19.21 | top 50.6% | 1,386 / 3,118 | |
| 2×2 | 6.26 | 9.15 | top 53.5% | 3,873 / 7,173 | |
| 3×3 one-handed | 39.50 | 53.84 | top 64.6% | 1,561 / 2,620 | |
| Megaminx | 3:05.27 | — | top 76.2% | 942 / 1,375 | |
| 5×5 | 3:20.05 | — | early days — 2 solves | 1,167 / 1,499 | |
| Square-1 | 4:51.66 | — | early days — 1 solve | 952 / 952 |
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
- 1 Mar 2025First sub-15 3×3: 14.75 at Happy Valley Spring PA 2025.
- 25 Jan 2025First competition: Waterloo Winter 2025. A 17.15 3×3 single to start from.
Competitions
- Axemann 2025 · 18 May 2025 — 1 personal best set
- Cube Against Cancer Buffalo 2025 · 5 Apr 2025
- Mississauga Newcomers A 2025 · 15 Mar 2025 — 1 personal best set
- Happy Valley Spring PA 2025 · 1 Mar 2025 — 2 personal bests set
- Waterloo Winter 2025 · 25 Jan 2025
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 her.
- Xavier Ye — met in 16 rounds, never finished ahead
- Ryan Krause — met in 15 rounds, never finished ahead
- Abdullah Gulab — met in 14 rounds, finished ahead twice
Next targets
- A sub-3 Skewb single — 3,646 people have one; it is 0.33 away.
- A sub-12 3×3 single — 39,535 people have one; it is 2.35 away.
Targets move as she improves.