Wikipedia
Rockavon
Rockavon (foaled 1958) was a British Thoroughbred racehorse and sire, best known for winning the classic 2000 Guineas in 1961. After winning three races on minor tracks as a two-year-old and being well-beaten on his three-year-old debut Rockavon created a 66/1 upset when winning the 2000 Guineas, becoming the first horse trained in Scotland to win a classic. He never won again and has been regarded as one of the least distinguished of classic winners. At the end of 1961 he was retired to stud where he made no impact as a sire of winners.