You can be the sharpest handicapper in the world, but without proper bankroll management, you'll eventually go broke. Tennis betting is a marathon, not a sprint, and surviving the inevitable downswings requires discipline.
The unit-based system is standard among professional bettors. One unit equals a fixed percentage of your total bankroll, typically 1-2%. If your bankroll is $1,000, one unit is $10-20. You bet in units rather than fixed dollar amounts, which scales your risk as your bankroll grows or shrinks. Win consistently and your unit size increases. Hit a losing streak and your unit size decreases, protecting you from catastrophic losses.
Flat betting means wagering the same number of units on every bet, regardless of confidence. Most bets are one unit. This is the safest approach for beginners or anyone prone to emotional betting. It removes decision-making about bet sizing, which eliminates one vector for tilt.
Record keeping is non-negotiable for serious bettors. Track every bet: date, match, player, odds, stake, result. Over time, this data reveals your strengths and weaknesses. Maybe you're profitable on clay but losing on grass. Maybe you're great at underdogs but terrible at favorites. Maybe you win during the first half of the season but go cold after August. You can't improve what you don't measure, and you can't measure without records.
The closing line value (CLV) metric is advanced but powerful. CLV compares the odds you got when you bet to the odds when the match starts. If you bet at +250 and the match starts with your player at +180, you captured significant CLV. Even if your bet loses, getting better odds than the closing line suggests your bets are well-timed. Over large samples, bettors who consistently beat the closing line tend to be profitable. Track your CLV to see if you're actually finding value or just guessing.
Avoid parlays and heavy multiples unless they're part of a specific strategy. Sportsbooks love parlays because they're wildly profitable for the house. The odds seem enticing turn $10 into $500! but the probability of hitting three or four legs is lower than bettors think. Stick to single bets or small two-leg parlays where you have strong convictions on both legs. Most of your bankroll should be in straightforward single bets where you've identified value.