[1][2] Blagrave made a single first-class appearance for the Gloucestershire County Cricket team, during the 1922 season, against Derbyshire.
[3][4] Blagrave had some success as an owner and trainer of racehorses, sending out Private Walk to win consecutive editions of the Old Newton Cup.
[6] In 1943, Blagrave married Mrs Gwendoline Sutton, daughter of Thomas Forsyth-Forrest, of the Querns, Cirencester, Gloucestershire.
As he had no heir, he established the Herbert and Peter Blagrave Charitable Trust, with orders that the money should be spent on sick children, the elderly, and injured jockeys.
Blagrave's property, the trust's main endowment, was sold in 2009 to allowing for diversified investments and increased distribution of grants.