1. Italy 0 North Korea 1 (1966 World Cup, can't remember who eventually won the tournament) - The mighty Italians, legends in their own imagination, humped by a pishy wee team from somewhere in the Far East. How we laughed !!
2. Foinavon ?? Pah !! The greatest achievement from a 100/1 outsider came in the 1990 Cheltenham Gold Cup. The CGC is THE steeplechase for true quality horses, running off level weights, not a handicap (or a lottery) like the Aintree showpiece. Norton's Coin, a 100/1 rank-outsider and acknowledged nae-chancer owned & trained by a Welsh farmer called Sirrell Griffiths, humiliated the rest of the field. A superb ride by Graham McCourt, and probably the biggest upset in the history of National Hunt racing.
3. Sunderland 1 Leeds 0 (1973 FA Cup Final). Leeds were the greatest team of their generation - every man an international (I think), facing a bunch of journeymen from the unfashionable second division. Ian Porterfield scored the goal, but goalkeeper Jim Montgomery was the hero of the day for the Rokerites.
4. Arthur Ashe v Jimmy Connors, Wimbledon Final, 1975. Connors was unbeatable. Ashe was a decent player but it promised to be another one-sided final (Connors had humiliated veteran Ken Rosewall in the final the previous year). Ashe gubbed the younger man in 4 sets (6-1, 6-1, 5-7, 6-4).
5. 1985 World Snooker final. The Nugget was mega odds-on to stiffen Dennis Taylor, and it was little surprise when Davis won the opening 8 frames. The rest is history.