Tamsin Tilley Beaumont was born on 11 March 1991 in Dover, Kent, England. She is the daughter of Kevin Beaumont, a research scientist, and Julie Beaumont; she also has a brother, Michael, who played cricket.

Her cricket career is defined by numerous historic milestones. Over a 17-year international span (2009–2026), she amassed more than 7,000 runs and became England Women’s all-time leading ODI centurion with 12 hundreds.

She was the Player of the Tournament at the 2017 ICC Women’s Cricket World Cup, scoring 410 runs to help England lift the trophy. In 2023, she became the first Englishwoman to score a Test double-century (208 vs Australia), breaking an 88-year-old record. She is also one of only two English women to score centuries in all three international formats (Test, ODI, and T20I).

She has appeared on Sky Sports Cricket as a pundit, commentator, and analyst, alongside Ian Ward, Mark Butcher, Dinesh Karthik and Stuart Broad notably during events like The Hundred and the World Cup final watchalong.

Beaumont married her long-term partner Callum Davey, a professional gymnast and CrossFit athlete, in April 2024. The couple had been together for several years prior and launched a business venture together in 2021.