Competitions · Germany

c't Open Hannover 2025

Hannover · 1 November 2025 · 9 events · 96 competitors · 95 personal bests

Alwin Rölz won four of the nine events (3×3, 4×4, 5×5) and the closest final was the 2×2, won by Justus Leander Cramer by 0.08 seconds. 96 competitors produced 95 personal bests, 58 of which still stand today, and nine people held a competitor card for the first time.

The moment

A national record

Jáchym Střelec set the 4×4 blindfolded single national record: 3:24.10.

Four wins

Alwin Rölz — 3×3, 4×4, 5×5, Skewb

0.08s

closest final — 2×2, Justus Leander Cramer over Noah Kraft

personal bests set on the day

Winners & podiums

Event	Winner	Single	Average
3×3	Alwin Rölz	5.99	6.79
2×2	Justus Leander Cramer	1.71	1.89
4×4	Alwin Rölz	25.09	27.68
5×5	Alwin Rölz	42.95	51.69
3×3 blindfolded	Jens Haber	16.59	—
Pyraminx	Duc Huynh	2.58	2.91
Skewb	Alwin Rölz	2.27	3.01
4×4 blindfolded	Noah Kraft	2:16.83	—
5×5 blindfolded	Noah Kraft	6:25.58	—

The PB harvest

95 set · 58 still standing

George Dinescu — 3×3 single 4.65: into the top 0.061% of the event's history.
Duc Huynh — Pyraminx single 1.43: into the top 0.34% of the event's history.
Magnus Lensch — Pyraminx single 1.64: into the top 0.6% of the event's history.
Simon Gall — 2×2 single 1.52: into the top 2.2% of the event's history.
Jonathan Blöcher — 4×4 single 29.19: into the top 2.4% of the event's history.
Justus Leander Cramer — Pyraminx single 2.70: into the top 2.7% of the event's history.
Yehor Bielievtsov — Pyraminx single 3.00: into the top 3.6% of the event's history.
Thore Freihold — 3×3 single 8.94: into the top 4.7% of the event's history.

First-timers

Nine 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

2 regional records were set at this competition.

The field

96 competitors · 788 results · 9 events.

Everyone who competed

96 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.