 Riva Ridge then lost the Stymie Handicap by a neck to Canonero II, winner of 1971's Kentucky Derby and Preakness Stakes, and was off the board in his final three starts, all over off tracks or turf.Riva Ridge is one of five horses who won two of three Triple Crown races but not that year's three-year-old championship.At age four, Riva Ridge developed a kidney condition and a chronic shoulder issue, but still won five of the nine races he entered, set track records four times, and equaled the 1-mile track record at Suffolk Downs in winning the Massachusetts Handicap.