The optimal bankroll management strategy for tennis betting involves using a flat betting approach, where you consistently wager a predetermined percentage of your total bankroll on each bet—typically between 1-5%. This method helps mitigate risk while allowing for gradual growth, even in the face of losses. Additionally, it's crucial to monitor your bankroll regularly and adjust the bet size accordingly as your bankroll fluctuates. Establishing a clear staking plan based on confidence levels and employing strategies such as the Kelly Criterion can further enhance your betting strategy. Ultimately, discipline, patience, and a focus on long-term profitability are key to successful bankroll management in tennis betting.