Odds: 29-1
Jockey: Willie Knapp
Owner: Willis Sharpe Kilmer
Bottom line: Exterminator wasn’t the only Kentucky Derby winner in his family. Older brother Donerail also won the 1913 Kentucky Derby. But more on him later.
Exterminator was sold to owner Willis Sharpe Kilmer as a “workhorse” right before his 3-year-old season began and was thought of mainly as a way to keep Kilmer’s prized horse, Sun Briar, ready for competition. Kilmer commonly referred to Exterminator with disdain. Mainly he called him “that goat.”
Guess what happened next? Sun Briar got ringbone right before the 1918 Kentucky Derby, and Kilmer begrudgingly raced Exterminator, who took off down the stretch for the upset win. Kilmer rewarded him by running him until he was 9 years old.
In an interesting twist, Exterminator lived until the ripe old age of 30 and died in 1945, outliving Kilmer by five years.