Funseth played full-time on the PGA Tour from 1963 through 1979 and won three tour events. The first was the Phoenix Open Invitational in 1965 at the Arizona Country Club, which came a week after losing a final round lead at the Bob Hope Classic in Palm Springs. Funseth's second win came eight years later at the Glen Campbell-Los Angeles Open, the season-opener in 1973 at Riviera. His final PGA Tour win came at age 45 in 1978 at the Sammy Davis Jr.-Greater Hartford Open, which paid for his horse barn.