What does a chamoise provide for a horse during a race?

A chamois provides prevention of the saddle slipping during a race, which is essential for maintaining control and ensuring the safety and comfort of the horse and rider. By creating a better grip between the saddle and the horse’s back, it helps keep the saddle securely in place even during the intense physical activity of racing. This stability allows the rider to maintain better balance and control, ultimately aiding in effective riding and performance. The prevention of slipping is a critical factor, as a saddle that shifts can lead to potential accidents and discomfort for both the horse and rider, impacting the race outcome. The other options, while they may touch upon aspects of racing, do not accurately describe the primary function of a chamois in relation to the horse's performance and safety during a race.