TOBA: Thoroughbred Owners and Breeders Association
Owner Education

Nicking

Nicking, the theory that certain lines have an affinity for one another, has perpetuated through Thoroughbred breeding since the 18th century. Measuring the success of a sire line when crossed with a broodmare sire line, nicking is a highly-regarded mating tool within the industry. Some prolific nicks that have been responsible for outstanding sires and runners include Nasrullah/Princequillo, Mr. Prospector/Northern Dancer and Galileo/Danehill.

Since the advent of computers, various programs and websites can generate nicks off of hypothetical pedigrees to assist with mating decisions. Nicking sites draw from the number of stakes winners produced by a cross to give a rating for the success of the nick.

As with any pedigree theory, nicking should not be the only criteria considered when planning a mating. Many other principles like conformation, commercial appeal, strength of female family and inbreeding should be considered before breeding. A nick must be weighed against other factors and carefully interpreted to best aid the breeder in their mating decision.

Unbreakable
Polynesian
Black Polly
Native Dancer
Discovery
Geisha
Miyako
Raise a Native
Teddy
Case Ace
Sweetheart
Raise You
American Flag
Lady Glory
Beloved
Mr. Prospector
Nearco
Nasrullah
Mumtaz Begum
Nashua
Johnstown
Segula
Sekhmet
Gold Digger
Reigh Count
Count Fleet
Quickly
Sequence
Bull Dog
Miss Dogwood
Myrtlewood
Fusaichi Pegasus
Nearco
Neartic
Lady Angela
Northern Dancer
Native Dancer
Natalma
Almahmoud
Danzig
Crafty Admiral
Admiral's Voyage
Olympia Lou
Pas de Nom
Petition
Petitioner
Steady Aim
Angel Fever
Turn-to
Hail to Reason
Nothirdchance
Halo
Cosmic Bomb
Cosmah
Almahmoud
Rowdy Angel
Rasper II
Rambunctious
Danae II
Ramhyde
Tulyar
Castle Hyde
Bold Irish
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