Stephen Spark compiled horses performance records starting in 1983 on his typewriter. Gyration raced from 1964 (2yo) through to 1971 (9yo). Career: 17 wins 7 seconds 6 thirds 107 starts.Typed document in black and red ink.harness racing, australasian harness racing, horse career, performance records, bendigo harness racing club, bhrc, gyration, kevin murray, g gath, george gath, kd murray