[1] Grubb won the Schweppes PGA Close Championship at Western Gailes Golf Club in 1964 taking the first prize of £1,000.

Grubb benefited from having played in the United States during the early part of the year and also because, in 1964, the PGA experimented with using the bigger ball, as used in America.

[5] Later in the year he won the Southern Professional Championship at Crews Hill Golf Club, Enfield.

He never won an event on the tour but was a runner-up in the 1992 Forte PGA Seniors Championship behind Tommy Horton and in the 1995 London Masters behind John Bland.

[10] European Senior Tour playoff record (0–1) Note: Grubb only played in The Open Championship.