Karting Macintyre began karting at the age of eight. He has had some consistent karting results, although never competing in the OK category due to moving straight to cars at the age of fourteen. His best karting result was in 2019, winning the
Italian Championship in the 60 Mini category. Macintyre is a former member of the Sauber Karting Team.
Ginetta Junior Championship For 2022, Macintyre was confirmed to be competing in the
Ginetta Junior Championship following a decorated karting career. Over the course of the season, Macintyre fought for the title with Josh Rowledge, eventually losing out to Rowledge in the final round of the season at
Brands Hatch. Macintyre finished second in the championship, and was the highest placed
rookie.
Formula 4 Macintyre made his single seater debut during the
2022 GB4 Championship finale. He finished second in during races two and three. Macintyre competed in the
2023 Formula 4 UAE Championship with
Hitech GP. In November 2022, it was announced that Macintyre would race in the
2023 F4 British Championship, continuing with Hitech. He obtained two second places during the second round of the season at
Brands Hatch. His first win came at
Thruxton in June, with the second coming at
Knockhill in August. Macintyre ended the season in second place in the championship, just 13 points shy of champion
Louis Sharp of
Rodin Carlin.
GB3 Championship After Macintyre's successes in F4, he moved up to
Hitech's GB3 team to become one of their three drivers for the
2024 season. During his debut round at
Oulton Park, Macintyre won the reverse-grid race three after making numerous overtakes and the race leader's retirement on the final lap. At the next round at
Silverstone Circuit, Macintyre finished on the podium in third for race one, and took his second victory of the season during race three after battling with
Ugo Ugochukwu. He claimed another win during a chaotic reverse-grid race three at
Circuit de Spa-Francorchamps. Macintyre finished in second during race two at the
Hungaroring, but was promoted to second after second place finisher
Tymek Kucharczyk was disqualified. He finished in third during race three at
Donington Park. He finished the season in fifth, securing a total of three wins, six podiums, and 376 points. For his
2025 campaign, Macintyre switched to
Elite Motorsport for his second GB3 campaign. He won the reverse-grid race three during the first round at Silverstone over Hitech's
Keanu Al Azhari. After taking the lead on the first lap, Macintyre finished in second during race three at
Zandvoort behind
Hugo Schwarze. He finished in second during race one at the Hungaroring.
Cancer diagnosis In September 2025, Macintyre announced that he is ending his season prematurely following diagnoses of
lung and
brain cancer. He is receiving treatment at
Milton Keynes Hospital, and has received support from numerous high profile individuals and drivers involved in motorsport including
Max Verstappen,
Kimi Antonelli,
Susie Wolff,
Bianca Bustamante,
Gianmarco Pradel and
Alex Ninovic. Every GB3 car from the
Donington Park GB3 round the next round after Macintyre's announcement carried a #TeamWill37 sticker just behind the halo which the cars would carried to the end of the season.
Freddie Slater also carried the sticker during the
2025 Macau Grand Prix. == Karting record ==