Risk of Ruin

A contrarian strategy of betting against the public or popular opinion. The theory is that bookmakers shade their lines toward the popular side, creating value on the less popular outcome. Fading works best in high-profile events where public money heavily influences the line in one direction.

A strategy of placing additional bets to reduce risk on an existing wager, often locking in a guaranteed profit or minimizing a potential loss. For example, if you have a parlay where only the final leg is pending, you can bet on the opposing outcome to guarantee some profit regardless of the result.

A staking strategy where the same amount is wagered on every bet, regardless of the odds or perceived edge. For example, always betting 2% of your initial bankroll. Flat staking is simple, limits risk, and is suitable for bettors who are not confident in precisely estimating probabilities.

A standardized bet amount used to measure and compare betting performance. One unit typically represents 1-2% of your total bankroll. Using units allows bettors to track performance consistently regardless of the absolute amounts wagered. For example, being up 50 units conveys a clear picture of profitability.

A statistical phenomenon where extreme results tend to move closer to the average over time. In betting, a team on a long winning streak is likely to see their performance normalize. Understanding regression helps bettors avoid overreacting to short-term results and identify value where the market has overcorrected.

A strategy where the bettor identifies and bets on outcomes where the bookmaker's odds are higher than the true probability warrants. A value bet exists whenever the offered odds exceed the fair odds. Over time, consistently placing value bets leads to profit regardless of individual results. This is the core principle behind professional sports betting.