Betstars' "Tennis Spin and Bet" feature allows users to enhance their betting experience by spinning a virtual wheel to earn multipliers on their tennis bets. When placing a bet on selected tennis matches, users can spin the wheel to potentially increase their payout, receiving a multiplier that could range from 1x to 100x. However, this feature usually comes with specific terms and conditions, such as minimum bet amounts, eligibility on particular matches or markets, and limitations on maximum potential winnings. Users should read the official rules provided on the Betstars website for detailed terms and any applicable restrictions to ensure compliance and fully understand the feature's workings.