This is the insanity that happens when two top fuel hydro boats compete in a drag race. According to a shorter clip of the event, the winning boat (Problem Child) hits 262.238 miles per hour in just 1000 feet!
Video description from the JunkinVideo YouTube page:
While at Lake Havasu, these dragsters take their boats and race on the water! When they take off, they create a wall of water down the race line!