The joys of sport are not the preserve of the young, according to today's guest editor, Diana Athill. Reg Brown, a 90 year-old sheep farmer from south east Wales, trained a horse called Tiptronic which won a race at Hereford at odds of a 100-1. Our Sports Correspondent Tim Franks went to meet Farmer Brown, his son, and, of course, Tiptronic.

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