Cornell Veterinary Medicine Cornell University

Determing your horses age from its tattoo

Thoroughbred tattoos:

 If the letter before the number is:  Then the horse was born in:
 T  1990
 U  1991
 V  1992
 W  1993
 X  1994
 Y  1995
 Z  1996
 A  1997
 B  1998
 C  1999
D  2000
 E  2001
 F 2002
 G 2003
 H 2004

 I

 2005

 J

 2006

The Thoroughbred Racing Protective Bureau has a horse identity research service.