Calculator Speeds to Victory in Clockers' Corner Stakes - BloodHorse

Richard Pell's Calculator has run in all kinds of races, but it's become apparent that he does his best work on the hillside turf course at Santa Anita Park.
Richard Pell's Calculator has run in all kinds of races, but it's become apparent that he does his best work on the hillside turf course at Santa Anita Park.

Calculator - Horse Profile - BloodHorse

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Cistron - Stallion Register Online

Ocala Breeders' Sales News Archives, OBS Sales

California Thoroughbred Stallion Directory 2018 by CTBA - Issuu

California Thoroughbred 2021 Stallion Directory by CTBA - Issuu

Fh oct2014binder by Florida Equine Publications - Issuu

Secretariat (horse) - Wikipedia

Why has no horse ever been able to beat the Secretariat's 1973 record at Belmont Stakes? - Quora

Horsepuckey: 2011

Ocala Breeders' Sales News Archives, OBS Sales