People · Canada
Mason Sungeun Chang
3×3 · top 36.0% of 284,439 all-time · competing since November 2024 · 2024CHAM20
Mason Sungeun Chang has been competing for a year. His best event is the 3×3: a personal-best single of 18.63, set at Korea Newcomers AM 2025, puts him in the top 36.0% of the 284,439 people who have ever been ranked in the event, and 3,545th in Canada. Across 4 competitions since November 2024, he has put 37 official solves on the record across four events. His 3×3 best has come down from 31.08 in November 2024 to 18.63, a 40% improvement. Mason has entered four competitions, more competitions than 78% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Canada | |
|---|---|---|---|---|---|
| 3×3 | 18.63 | 21.62 | top 36.0% | 3,545 / 10,392 | |
| 2×2 | 4.76 | 8.14 | top 36.3% | 2,511 / 7,173 | |
| Pyraminx | 11.74 | 13.36 | top 65.6% | 3,230 / 4,858 | |
| Skewb | 21.69 | — | early days — 2 solves | 2,738 / 2,907 |
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
- 8 Mar 2025First sub-20 3×3: 18.63 at Korea Newcomers AM 2025.
- 14 Dec 2024First sub-30 3×3: 23.62 at Seoul Winter 2024.
- 23 Nov 2024First competition: Hamchang Winter 2024. A 31.08 3×3 single to start from.
Competitions
- Suwon Summer 2025 · 13 Jul 2025
- Korea Newcomers AM 2025 · 8 Mar 2025 — 1 personal best set
- Seoul Winter 2024 · 14 Dec 2024 — 1 personal best set
- Hamchang Winter 2024 · 23 Nov 2024
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.
- Choi Goho (최고호) — met in 8 rounds, never finished ahead
- Ko Youngjin (고영진) — met in 8 rounds, never finished ahead
- Keunsoo Heo (허근수) — met in 8 rounds, never finished ahead
Next targets
- A sub-15 3×3 single — 69,493 people have one; it is 3.63 away.
- A sub-4 2×2 single — 49,452 people have one; it is 0.76 away.
Targets move as he improves.