Kimiora and her two sisters, Jade and Ashleigh, all attended Tikitiki School where they began playing netball.

[3] Her older brother, Morgan Poi, has played rugby union for Wellington Lions in the Mitre 10 Cup.

Despite this, on 8 May 2017, in a Round 7 match against Northern Stars, she made her ANZ Premiership debut with Pulse, making a brief three-minute appearance in the final quarter.

[7][5][20] Together with Jane Watson, Erikana Pedersen and Te Paea Selby-Rickit, Poi was a prominent member of the 2020 and 2021 Mainland Tactix teams that played in two successive grand finals.

[7][23][24][25][26][27] Ahead of the 2022 season, Poi was appointed Tactix captain, taking over from the pregnant Jane Watson.

[4] In 2019, Poi briefly joined Collingwood Magpies in Suncorp Super Netball as a temporary replacement player, covering for the injured Madi Browne.

In Round 13, Poi played an integral role in a season highlight for Magpies when they defeated Swifts 64–56.

[42][43][44] On 13 January 2019, Poi made her senior debut for New Zealand in a 2019 Netball Quad Series match against England.

[45][46] On 26 January 2020, Poi made her first start during a 2020 Netball Nations Cup match against South Africa.