In this continuing series from last year, we examine the past winners of significant filly/mare races by the lasting influence they've had on the breed. Up today is Santa Anita's GI Beholder Mile S., the first Grade I event of the year in the distaff division. Formerly the Vanity, formerly run at Hollywood Park, and formerly run at distances up to 1 1/4 miles, the Beholder Mile has had one constant: class. Some of the most decorated racemares of our sport have won it since it was inaugurated in 1940,...