BetItOn's "tennis bet boost" feature typically allows users to enhance their potential winnings on selected tennis bets by providing increased odds. When you place a qualifying bet on a specific match or tournament, the boosted odds will apply, resulting in higher returns if your bet is successful. The terms and conditions for this feature usually include restrictions on the types of bets eligible for the boost, minimum stake requirements, a cap on the maximum boost amount, and specific time frames or events for which the offer is valid. It's important for users to read the detailed terms on the BetItOn website or app to understand any limitations and ensure compliance.