A strong ball carrier, Isaac Curtis-Harris joined the Senior Academy during the 2016/17 season.
Then dual registered with Esher, Curtis-Harris featured in Irish’s 2017/18 European Rugby Challenge Cup campaign.
He featured on 10 occasions for the Exiles in 2019/20 and captained the 7s team in the season opening tournament at Franklin’s Gardens.
Curtis-Harris was another member of the London Irish squad to extend his time at the Club, signing a contract extension at the end of the 2020/21 season.
Having registered 20 appearances pre-2021/22 season, the back-row forward had three more run-outs for the Exiles in that season, scoring his first try as a Premiership player in a home 25-all draw against Gloucester Rugby.