Given the task definition and input, reply with output. Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title

In Iron Man 2 (2010), Whiplash (the villain) enters as a track marshal during a race on the Grand Monaco Racing Track, unleashing his weapons on Tony Stark when he's most vulnerable. But, Tony only decided to race the Stark car minutes before the race, which Whiplash couldn't have known. Was he able to predict that it was going to happen or is he that lucky? Then, how could Whiplash come so prepared without knowing that?
How did Whiplash know that Tony Stark is going to the racing track?