He was in the seven seat of the Cambridge boat in the 2022 Boat Race.[6]
He switched to the coxless pair, where he teamed up with Tom George and in 2022, won a bronze medal and a silver medal, at the 2022 World and European Championships respectively.[7] The following year in 2023, he repeated the silver success at the 2023 European Rowing Championships and then followed this up with another silver at the 2023 World Rowing Championships in Belgrade, behind the same Swiss pair.[8]
At the 2024 Paris Olympics, Ollie finished 2nd in the men's pair with Tom George, losing to Croatia in the last few strokes.[9]