Competitions · Switzerland

Swiss Science Open 2025

Winterthur (ZH) · 4 October 2025 · 9 events · 113 competitors · 131 personal bests

Alwin Rölz won three of the nine events (3×3, 2×2, 3×3 one-handed) and the closest final was the Pyraminx, won by Daniel Brem by 0.06 seconds. 113 competitors produced 131 personal bests, 77 of which still stand today, and 14 people held a competitor card for the first time.

The moment

A national record

Jakob Fiechter set the Skewb average national record: 3.31.

Three wins

Alwin Rölz — 3×3, 2×2, 3×3 one-handed

0.06s

closest final — Pyraminx, Daniel Brem over Alwin Rölz

131

personal bests set on the day

Winners & podiums

Event	Winner	Single	Average
3×3	Alwin Rölz	6.69	7.51
2×2	Alwin Rölz	1.09	1.65
4×4	Julian Bürgi	27.41	29.14
3×3 blindfolded	Tobias Peter	25.23	—
3×3 one-handed	Alwin Rölz	10.64	11.42
Clock	Daniel Brem	3.72	4.41
Megaminx	Jingqi Zhang	35.18	37.16
Pyraminx	Daniel Brem	1.92	2.84
Skewb	Daniel Brem	2.56	3.01

The PB harvest

131 set · 77 still standing

Christian Meyer — 3×3 single 8.58: into the top 3.9% of the event's history.
Benjamin Engeli — 3×3 single 8.79: into the top 4.4% of the event's history.
Sascha Degen — 3×3 single 10.28: into the top 8.3% of the event's history.
Colin Stastny — Pyraminx single 4.17: into the top 8.5% of the event's history.
Eno Casagrande — 3×3 single 10.56: into the top 9.1% of the event's history.
Ramon Hollenstein — 2×2 single 2.61: into the top 10.0% of the event's history.
Silas Brunner — 2×2 single 2.65: into the top 10.4% of the event's history.
Remo Decio — Clock single 7.32: into the top 12.2% of the event's history.

First-timers

14 people competed for the first time at this competition, joining the 28,483 people who made their debut in 2025. Start here explains what a first competition is like.

Records watch

1 regional record was set at this competition.

The field

113 competitors · 730 results · 9 events.

Everyone who competed

113 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.