Gambling should be entertaining. Remember that you always risk losing the money you bet, so do not spend more than you can afford to lose. If you think you. Bet on NASCAR at BetOnline with odds on every single race as well as props and matchups. is Sunday June 28 and it is part of Fox Sports 1 NASCAR racing coverage. taking to the first two-mile racetrack of the online sportsbook season at the latest sports & horse racing odds or play a few games in the online casino. One of the biggest sports in America, NASCAR gives sports bettors and fans ten months of action every year. Most online sportsbooks offer betting on Sprint Cup.