What Do the Terms Colt, a Filly, a Mare, and a Gelding Mean in the World of Thoroughbred Horses?

The official birth date of all Thoroughbred racehorses is January 1 of the year they were born regardless of the actual birth date.

All horses are “foals” until they are a year old.

Between the ages of two and five, males are called colts while female horses are fillies.

what do the terms colt a filly a mare and a gelding mean in the world of thoroughbred horses

Beyond the age of five, male horses are simply called horses while females are mares.

A male horse that has been neutered is referred to as a gelding while one preserved for breeding purposes is a stallion.

These designations are important because Thoroughbred racing uses age to determine equitable divisions for competition.

Gelding is from the Viking word geldr, which means “barren.”

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Karen Hill is a freelance writer, editor, and columnist for zippyfacts.com. Born in New York, she loves interesting random facts from all over the world.