For her bravery, Ms O'Malley was named the national winner for Rescue of the Month and awarded the Central Region BP Rescue of the Month award for December.
She said she was humbled but proud of the December rescue.
"It was my first night on holiday and I hadn't had time to check the beach yet ... I suppose you start to doubt yourself when you first go out there but yeah, I guess instinct kicks in."
She said without the aid of a surf crew or any equipment it was difficult to bring in all four teens, the highest number of souls she has saved in one rescue.
Her Westshore club receives a $500 fuel voucher from BP. Each month, Surf Life Saving New Zealand selects a winning rescue from each region as well as an overall national winner for the title of BP Rescue of the Month.