225 people showed up to climb stairs for a good cause on Sunday.
Either in groups or individually, they raced up the 33 floors of the tower at Marina Bay Financial Centre.
The winning team of three from Schindler Lifts took four minutes and 12 seconds to complete the challenge.
They raised S$266,000, all of which will go towards building a rehab gym for patients at the Institute of Mental Health.
The race was organised by mental health charity MINDSET Care.