What charge applies to a person who willfully contests relative speeds by operating a vehicle on public streets?

The charge that applies to a person who willfully contests relative speeds by operating a vehicle on public streets is reckless driving. This is defined by the conscious disregard of the circumstances and consequences of one's actions, which creates a substantial and unjustifiable risk to others. In this context, contesting speeds implies a dangerous and high-risk behavior that not only endangers the driver but also other road users.

Reckless driving typically involves actions such as racing, which involves intentionally competing with another vehicle, often at high speeds and in a manner that can be hazardous. Such behavior indicates a willful disregard for the safety of others, which is the primary basis for a reckless driving charge. This level of disregard is more severe than merely careless driving, which might not involve intent to create a risk or harm, thereby making reckless driving the appropriate charge in scenarios involving competitive driving on public streets.