Stepping up to single-seaters in 2025, Westcott began the year in Formula Winter Series with Van Amersfoort Racing, [5] scoring a best result of 13th in race three at Aragón to end the winter 27th in points. [6] For her main campaign, Westcott took part in the Italian F4 Championship, also with Van Amersfoort Racing. [7] During the first race of the season in Misano, she finished in 20th and claimed her first win in the women's' championship. [8] Westcott advanced on Emily Cotty in the women's championship throughout the season, securing double class wins at both Monza and Mugello. [9] [10] At Imola, Westcott achieved a class win during race one and tied her highest finishing position of 20th during race three. [11] By the end of the season, she finished the women's championship in second. [12] Westcott also participated in the E4 Championship, once again with VAR. [13]
At the end of 2025, Westcott raced in the first and last rounds of Formula Trophy with Prema Racing, [14] winning race two at Dubai from reverse-grid pole, becoming the first female race winner in the series, [15] before returning for the season-ending round at Yas Marina and finishing 10th in race one, helping her end the year 10th in points. [16] Also in 2025, Westcott made a one-off appearance in the F4 Saudi Arabian Championship in the season-ending Jeddah round, in which she scored a best result of eighth in race two. [17]
American