Born in Guam, he represented the Federated States of Micronesia at the 2020 and 2024 Olympic Games.

Fiti finished in 5th place for the men's 100m in qualification heat 3 in the 2019 IAAF World Championships in Doha running 11.34 seconds.

[4][5] After being chosen for the 2020 Summer Games, he was given the honour of being the flag bearer for the nation in the opening ceremony.

[7] He competed in the 2024 World Athletics Indoor Championships – Men's 60 metres race and ran a personal best time of 7.52 seconds.

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