Bak Da Man
In a slowly run race, you would look at the rear of the field for a lay as they are really going to struggle to catch the horse in a sprint as they have not expended a lot of energy. In a frantic fast run race, you would look to lay the leaders as they will have gone too fast too soon and will run out of gas and back markers will swoop late and beat them. The commentary will often be a good guide to the pace of the race to help make decisions.