From Christchurch, she was an unused reserve in the New Zealand women's eight at the 2020 Tokyo Olympics in which her elder sister Lucy won a silver medal.

[3] At the February 2011 New Zealand national championships held at Lake Ruataniwha, she competed in two U19 boat classes starting for the Canterbury Rowing Club.

[4] At the February 2012 New Zealand national championships held at Lake Karapiro, she competed in five boat classes starting for the Avon Rowing Club; this was the year after she had finished high school.

With the coxless four, she became national champion alongside Emma Dyke, Grace Prendergast, and her elder sister Lucy.

At the 2018 World Rowing Cup III held on the Rotsee in Switzerland, where Georgia Perry replaced Goodger, they came eighth.

[13] They went to the 2019 World Rowing Cups II (Poznań, Poland) and III (Rotterdam, Netherlands), where the team came eights and twelves, respectively.

[10] In early February 2021, Rowing New Zealand announced the elite women's team for the Olympic year, with Spoors placed in the sweep squad.

[17] When New Zealand's Olympic team was announced in June 2021, Spoors was listed as one of ten rowers designated for the women's eight.

[20] However, Grace Prendergast and Kerri Gowler did double-duty in the women's pair and the eight, with Kirstyn Goodger and Phoebe Spoors remaining unused reserve rowers.