In March 2023, Lewis Hamilton and his long-time performance coach and physiotherapist, Angela Cullen, amicably ended their professional partnership after seven years. Cullen had been a constant presence in Hamilton’s Formula 1 career since 2016, contributing significantly to his success, including four consecutive world championships from 2017 to 2020 .
The decision to part ways was mutual and rooted in personal growth and evolving aspirations. Hamilton expressed deep gratitude for Cullen’s unwavering support, stating, “For the last seven years, [Angela] has been by my side, pushing me to be the best version of myself. I am a stronger athlete and a better person because of her” . Cullen, in turn, shared her excitement about embarking on a new adventure, highlighting her appreciation for their journey together .
Mercedes team principal Toto Wolff indicated that the split was initiated by Hamilton as part of an honest appraisal of their working relationship, emphasizing the importance of adaptability and personal development within the team . Cullen’s desire to spend more time with her family and pursue new opportunities also played a role in the decision .
Despite ending their professional collaboration, Hamilton and Cullen have maintained a close friendship, with Hamilton noting that they continue to communicate regularly . Cullen later returned to motorsport, working in the IndyCar series with fellow New Zealander Marcus Armstrong .
In a turn of events, Hamilton and Cullen reunited in early 2025 as Hamilton began his new chapter with Ferrari. Cullen rejoined his performance team, bringing her expertise and support back into his racing endeavors .