“Risking any property for gain contingent in whole or in part upon lot, chance, the operation of a gambling device or the happening or outcome of an event, including a sporting event, over which the person taking a risk has no control.”
Skill games are not considered gambling in Wyoming, so betting on darts and billiards is legal. If the game is “in part” based upon chance, though, it is gambling. Thus, poker and fantasy sports are considered gambling, even if they have elements of skill to the game. If you do not have complete control over the outcome, then it is gambling.