Prior to the 2017 Pacific Mini Games, the only competitions Harris had experience with was school meets in Queensland and only achieving a personal best time of 11.94 seconds.

[2] The 2017 Pacific Mini Games would act as his first international competition in which he would compete in the 100 metres event.

The event featured the likes of Nazmie-Lee Marai from Papua New Guinea and Kelvin Masoe from Samoa.

Harris was drafted in race three with Masoe during the heats phase coming fifth with a time of 11.12 seconds.

As a result, Harris achieved the highest ranking 100 m sprinter for Nauru at the games, over his counterparts Joshua Jeremiah and Dysard Dageago, plus, he set a new personal best and national record.

[3] On the 17 June 2017, Harris also set a new personal best for his Long jump while practicing in Gold Coast with a distance of 6.42 metres.

Harris was in lane seven and ran the race in 10.95 coming fifth, a new national record, but this time wasn't fast enough to qualify to the quarterfinals.

In the finals, Harris' biggest challenger was Olympic athlete, Rodman Teltull from Palau.

Harris ran the distance in 23.21 seconds finishing third after the heats, third behind Teltull and Chuuk's Scott Fiti but still advanced to the finals.