Amanda Gibbs was spotted hooting loudly on the sidelines for her 14-year-old daughter, Amy Gibbs, who was racing around the course on Kennebrook Duchess.
It was her daughter's first time in the sweepstake but Mrs Gibbs said she thought Amy had a great chance of winning the prize money and was "very gutsy" for giving it a go.
"It was awesome! It was very exciting, and as you can see I've already lost my voice," Mrs Gibbs chuckled.
Keen onlookers flocked to the fences around the Premier Arena in the hopes of getting a close encounter with the athletic horses that thundered around the ring.
And while grey skies loomed ahead the rain held back for the night's entertainment.
Mother and daughter Margie and Zephyr George were spotted on the sidelines during the Silver Fern Stakes in comfy camping chairs and said they would be sticking around for the night's unique event.
"People usually come because it's social and entertaining and you get to see something a little bit different," Mrs George said.
"There aren't many events at night time."
Mrs George said she had travelled down from Whangarei for the event and had spent most of the week manning her imported equestrian gear business, Saddlery Direct.
Ms George, a first-timer to Horse of the Year, said she hoped to be entertained and inspired by the performances.
Along with high jumps and speed competitions the extravaganza was supplemented by unique acts that engaged the audience and kept them in festive spirits throughout the night.
While the sweepstake was impressive, the crowds really did go wild for stunt rider Tui Taka's horse who danced for the crowd before taking an elegant knee and prompting a roar of applause.