In 1986 he won the inaugural West End Speedway International at the Wayville Showground in Adelaide, South Australia.
He would come back a year later and finish third at Wayville behind 1986 World Champion Hans Nielsen and Tommy Knudsen (both from Denmark).
Miller was also a frequent member of the USA speedway team in the World Team Cup, finishing 3rd in 1983 in Vojens, Denmark, 2nd in the 3 round 1986 series, 3rd in the 1987 series held again over 3 rounds, 2nd in 1988 at the Veterans Memorial Stadium in Long Beach, 4th in 1989 at the Odsal Stadium in Bradford, England, before finally becoming a World Champion by winning the 1990 Speedway World Team Cup in Pardubice, Czechoslovakia alongside Kelly Moran, Sam Ermolenko, Shawn Moran and Billy Hamill.
Miller also rode for the Örnarna Eagles in Mariestad, Sweden, and helped them in winning the 1992 Elitserien Championship.
[2] Miller was stunt double for Ryan Gosling in The Place Beyond the Pines,[5] and has worked as a stuntman in over fifty feature films.