In 2025, he became Australian short track champion and set a new national record, over 60 metres.

[1] From Queensland, he played for Brisbane junior rugby union representative sides and played junior international rugby union for Australia before switching his focus to athletics.

[2] In November 2023, he won the silver medal behind compatriot Calab Law at the 2023 Pacific Games over 100 metres in Honiara.

[4][5] He was a member of Australia's 4x100-metre men's relay team at the 2024 Olympic Games that ran a time of 38.12 seconds to set a new Oceania record.

[9] At the Australian short-track championships, held in Sydney in February 2025, Kennedy took victory in the 60 metres with a time of 6.51 seconds.