ARIZONA: 60 deaths; 14,968 thoroughbred horses that started races

ARIZONA: 60 deaths; 14,968 thoroughbred horses that started races

ARKANSAS: State doesn’t compile death numbers; 4,222 starts

CALIFORNIA: 261 deaths; 40,045 starts

COLORADO: 3 deaths; 1,697 starts

DELAWARE: 20 deaths; 7,538 starts

FLORIDA: 44 deaths (Calder Race Course only); 30,423 starts (statewide)

IOWA: 21 deaths; 5,047 starts

IDAHO: 5 deaths; 1,852 starts

ILLINOIS: 63 deaths; 21,475 starts

INDIANA: 22 deaths; 9,232 starts

KANSAS: 7 deaths; 1,751 starts

KENTUCKY: 39 deaths; 23,180 starts

LOUISIANA: 68 deaths; 32,223 starts

MASSACHUSETTS: 12 deaths; 7,057 starts

MARYLAND: 25 deaths; 14,080 starts

MICHIGAN: State doesn’t compile death numbers; 6,587 starts

MINNESOTA: 8 deaths; 4,348 starts

NEBRASKA: State doesn’t compile death numbers; 6,907 starts

NEW JERSEY: 39 deaths; 8,730 starts

NEW MEXICO: 52 deaths; 13,585 starts

NEW YORK: 113 deaths; 29,320 starts

OHIO: 58 deaths; 22,860 starts

OKLAHOMA: 35 deaths; 11,441 starts

OREGON: 14 deaths; 5,499 starts

PENNSYLVANIA: 43 deaths; 30,214 starts

TEXAS: 25 deaths; 14,993 starts

VIRGINIA: 8 deaths; 3,673 starts

WASHINGTON: 35 deaths; 6,963 starts

WEST VIRGINIA: 91 deaths; 37,581 starts

XMethods used for compiling fatality data vary widely by state. Some states include in their figures deaths that happened in training, barn accidents and other accidents or medical complications that occurred on a racetrack grounds. Some of the deaths listed may include breeds other than thoroughbreds killed during a mixed meet.

Source on death data: State horse racing governing bodies; Kansas totals from The Woodlands Racetrack; Florida totals from Calder Race Course

Source on thoroughbred start data: Equibase Co.