Liquidity in tennis betting is primarily driven by the volume of bets placed on matches, influenced by factors such as the popularity of the event, the visibility of the players involved, and market dynamics. High-profile tournaments like Grand Slams attract significant attention, leading to greater betting activity. Additionally, real-time information, including player form, injuries, and match conditions, can affect bettors’ decisions, boosting liquidity as more participants engage in live betting or pre-match betting.