[4] With his first jump at the 2023 World Athletics Championships in Budapest in August 2023, Pinnock achieved a new personal best distance of 8.54 metres, and it was enough for him to win the silver medal at the event.

[5][6] He won the long jump NCAA Indoor Championships in March 2024 in Boston, Massachusetts.

[7][8] With his effort of 8.40 metres, he equalled the Jamaican indoor record, matching the mark achieved previously by James Beckford and Carey McLeod.

[10] In June 2024, he placed second at the Jamaican Athletics Championships long jump with a leap of 8.27 metres.

[11] Selected as part of the Jamaican team for the 2024 Summer Olympics in Paris, he won the silver medal with a jump of 8.36 metres.