Topsider (1974–1992) was an American Thoroughbred racehorse. He was a bay son of the great Northern Dancer and the very speedy racing mare Drumtop. [1]

Topsider
SireNorthern Dancer
GrandsireNearctic
DamDrumtop
DamsireRound Table
SexStallion
Foaled1974
CountryUnited States
ColorBay
BreederPaul Mellon & James B. Moseley
OwnerArdboe Stable
TrainerThomas J. Kelly
Record18: 8-3-0
EarningsUS$125,060
Major wins
Sport Page Handicap (1978)

Topsider won eight races from eighteen career starts, including the Sport Page Handicap at Aqueduct Racetrack in New York City. [2] In another of his wins he set a new track record of 1:14 2/5 for 6½ furlongs at Saratoga Race Course.

When his racing career was over, Topsider was sent to Claiborne Farm in Kentucky where became a significant sire whose offspring won more than $18 million in racing. [3] Among his best were two Champions: North Sider, the 1987 American Champion Older Female Horse, and Salse, a Champion Three-Year-Old in France. Topsider stood his entire career at Claiborne Farm and died there on October 18, 1992 as a result of a hernia in his diaphragm.

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