In his first year of car racing after moving up from karting, Reece competed in all 7 rounds of the 2020 British F3 Championship with team Hitech GP. The Covid-delayed schedule of 24 races ran from August to November. Overall Reece scored 2 podiums, one fastest lap and a Fastest Driver of the Weekend award. Highlights included a 2nd place finish in Race 5 at Donnington Park and another 2nd place finish in Race 9 at Brands Hatch, both in the busy 3-round month of August. His Fastest Driver of the Weekend award came in Race 13 at Donnington Park in September. Classified as an elite sporting event, the final round of the F3 season at iconic Silverstone Circuit was held during UK lockdown without spectators, allowing the series to complete its full schedule of races for 2020.