[3] Keeney rose to prominence in the Australian aquatic scene, when she competed at the 2014 Commonwealth Games in Glasgow, Scotland.

[7] Keeney performed for the synchronised springboard diving, alongside Anabelle Smith, at the 2016 Summer Olympics in Rio de Janeiro.

[11] Keeney was training to compete for the 2020 Summer Olympics in Tokyo, Japan, the games were rescheduled to 2021 as a result of the COVID-19 pandemic but pulled out due to an injury.

[12] For the 2022 Commonwealth Games, contested in Birmingham, England, Keeney won a gold medal in the 3 metre synchronised springboard, scoring less than 20 points ahead of silver medallists Nur Dhabitah Sabri and Ng Yan Yee of Malaysia with a final mark of 316.53 points achieved with her partner Anabelle Smith.

[15][16] One day later, she scored 304.02 points with partner Li Shixin in the mixed 3 metre synchronised springboard to win the silver medal.