Winning a sprint doesn’t come down to any one thing but rather a culmination of things including teamwork, speed, calculation, and power. Win a sprint of the Tour de France and you’ll be remembered for a long time. This video gets into how teams approach a sprint finish and why they are lined up they way they are. When you’re watching the next sprint finish, look and see what team members are riding where and see how far back their sprinter starts their sprint from. There’s a lot going on at 40+ mph and a lot of comes down to instinct and split second decisions. If you hesitate, it’s already too late. This video from Eurosport does a good job of describing the details of sprint.