Not got top marks for longevity but Flyingbolt deserves his rating and place in the pantheon.
Big race wins C+P from wikipedia:
Irish Grand National (1966)
Queen Mother Champion Chase (1966)*
Thyestes Chase (1966)
Arkle Challenge Trophy (1965)
Massey Ferguson Gold Cup (1965)
Black & White Whisky Gold Cup (1965)
Irish Champion Hurdle (1964)
Supreme Novices’ Hurdle (1964)
*He won by 15 lengths and came 3rd in the champion hurdle the next day.
In the handicaps the weight he gave away was in the order of stones rather than pounds.