Unibet's "Tennis Profit Boost" feature typically allows users to increase their winnings on selected tennis bets by applying a percentage boost to their profits, which can vary based on specific promotions or events. To take advantage of this offer, bettors usually need to place a qualifying bet on tennis matches, and the boost can be applied to win or each-way bets. However, the exact terms and conditions may differ, so users should check Unibet’s website or promotional materials for details such as eligibility requirements, maximum boost limits, expiration dates, and restrictions on combining with other promotions. It's crucial to read the fine print to understand any wagering requirements or eligibility criteria related to the feature.