This list was originally published in January 2010, last update was January 2020, let is know in the comments if you think anyone should be added.
Phil Bull made a massive amount of money from betting, but not only was he a successful gambler he was also a breeder, owner, writer and publisher. It is estimated he made millions during his career.
In 1948 he launched the now internationally renowned organisation Timeform.
Phil had a shrewd attitude towards betting. He looked at the season as a whole and his form study was the same for every race.