Competitions · Singapore

Singapore Polytechnic September Showdown 2025

Singapore · 27 September 2025 · 8 events · 49 competitors · 44 personal bests

Emmanuel Kao won four of the eight events (4×4, 5×5, 6×6) and the closest final was the Square-1, won by Malcolm Walter Ang by 0.09 seconds. 49 competitors produced 44 personal bests, 25 of which still stand today.

The moment

The day's biggest improvement

Sarvesh Suryanarayan took a 3×3 one-handed single of 16.85 down to 9.83, 42 percent better in one day.

Four wins

Emmanuel Kao — 4×4, 5×5, 6×6, 7×7

0.09s

closest final — Square-1, Malcolm Walter Ang over Dalton Yeo

personal bests set on the day

Winners & podiums

Event	Winner	Single	Average
4×4	Emmanuel Kao	24.57	25.77
5×5	Emmanuel Kao	39.21	41.43
6×6	Emmanuel Kao	1:12.99	1:16.95
7×7	Emmanuel Kao	1:47.39	1:51.11
3×3 one-handed	Reuel Franz Ramirez Magracia (刘埃尔)	9.95	10.48
Clock	Akash Sreedharan (ஆகாஷ் ஸ்ரீதரன்)	2.96	3.77
Megaminx	Ziyu Wu (吴子钰)	29.18	30.21
Square-1	Malcolm Walter Ang	6.74	8.11

The PB harvest

44 set · 25 still standing

Darius Soh Zi Jie — 4×4 single 24.62: into the top 0.61% of the event's history.
Ng Jia Quan (黄佳铨) — 6×6 single 1:22.45: into the top 0.86% of the event's history.
Sarvesh Suryanarayan — 3×3 one-handed single 9.83: into the top 0.94% of the event's history.
Lee Yu Zhe — Megaminx single 39.91: into the top 1.6% of the event's history.
Buddhi Setia Darma — 5×5 single 55.85: into the top 3.7% of the event's history.
Darius Soh Zi Jie — Megaminx single 51.25: into the top 5.6% of the event's history.
Advaith Tirumalai Ananthan Pillai — Square-1 single 11.05: into the top 8.1% of the event's history.
Chong Zhi Qing — 4×4 single 38.66: into the top 10.5% of the event's history.

First-timers

No people competed for the first time at this competition. Start here explains what a first competition is like.

Records watch

No national, continental or world records were set at this competition. That is true of most competitions.

The field

49 competitors · 274 results · 8 events.

Everyone who competed

49 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.