Usually positioned just behind the front runners early in a race are the stalkers, horses that pace themselves early on while staying within reach of the leaders. When the front runners tire, stalkers often have enough energy left for a late, hard charge to the win. Both stalkers and front runners can be strong runners and risk pushing themselves too hard through the early and middle stages of a big race. When that happens, either type of horse can tire at the end, though a stalker in good condition that has saved some energy for the final stretch can use a hard charge to pull off a win. If there are too many stalkers in a race, a horse can get boxed in by the others and end up finishing out of the money. Stalkers tend to do well in medium to long races, where front runners are more likely to tire.