The sport of racing has plenty variables that can make or mar an event. Factors like the fitness of a horse or dog, the venue, or weather changes and even the trainer can drastically alter the outcome of a sporting event. To compound matters, each and every one of these factors can happen in the blink of an eye.
Due to these variables, it can be really hard for punters to correctly predict the outcome of a race. To make things worse, it can be extremely difficult to know if an online bookmaker’s odds will grow longer or shorter as the day of the race gets closer.