Why a 60% win rate can still lose you money

It sounds impossible: how can you win 6 out of every 10 bets and still lose money? But it happens constantly, and it's the most common reason bettors think they're good when they're not. The culprit is the one thing win rate ignores — price.

Your break-even win rate depends on the odds

Every price has a win rate you need just to break even. At even money you need to win 50%. But bet a -200 favorite and you need to win about 67% just to stay flat — because you're risking $200 to make $100. Win "only" 60% at that price and you're losing money, even though you're winning more than half your bets.

Favorites: win often, profit rarely

Heavy favorites win a lot, which feels good and pads your win rate. But they pay little, so the margin for error is tiny and the book's vig eats you. A gaudy win percentage built on short-priced favorites is one of the great illusions in betting.

The right scoreboard: ROI and CLV

Win rate answers "how often am I right?" — but the question that pays is "am I getting a good price?" Two metrics tell you that honestly: return on investment (profit per dollar risked), and Closing Line Value (whether you consistently beat the line's final price). Positive CLV over a large sample is the closest thing to proof that you're actually beating the market.

What to track instead of win rate

• ROI / profit — the only number that reflects price, not just frequency.
• Closing Line Value — are you beating the closing number?
• Results by bet type, sport, and book — where are you actually making and losing money?

Bankroll Guardian computes all of this automatically — ROI, CLV, and a leak finder that shows where your win rate is lying to you — so you can judge yourself on the numbers that matter.

Bankroll Guardian is a bet-tracking and analytics tool — not a sportsbook, and none of this is betting advice. Betting carries risk; please bet responsibly.