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Abstract Building

May 2023

2023 Churchill Downs StrideSAFE Study

The Kentucky Horse Racing Commission has awarded Washington State University a grant to design a program to help trainers, owners and veterinarians prevent catastrophic injuries in their racehorses using the StrideSAFE sensor.

Modern life, as we know it, would come to a halt without sensors. Cars would not drive and airplanes couldn’t fly. Sensors are in every sport as well. Every top human athlete carries and is monitored, protected, and improved by sensor technology. In this project we are just catching up with the modern world.


In this program all starters during the 2023 Spring meet at Churchill Downs carry a small 3 ounce sensor in a pocket in the saddlecloth.  This sensor records how the horse is moving 2,400 times every second!

The idea is simple: with the sensor we are able to identify subtle abnormalities in high-speed movements of the horse, communicating this information to trainers and veterinarians allows for proactive veterinary intervention to identify a potential underlying cause with the ultimate goal of preventing a catastrophic injury.

The StrideSAFE sensor is not “new” or “experimental” in the racing world. This type of sensor has been used in races all around the world. Here in North America we have almost 10,000 cases. What we know is that most catastrophic injuries have a very distinct pattern to the data and often we have seen these changes weeks before the catastrophic injury happened. In other words, the sensor can record stride changes to indicate a potential injury may be coming.   Over time the system will learn to selectively identify horses at increased risk with greater sensitivity until only the true “accidents” occur.

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