A


Accumulator (Parlay)
A single bet combining 2+ selections. All must win. Risky but odds multiply.

Arbitrage
Betting on all possible outcomes across different bookmakers to guarantee a small profit regardless of result.

B


Bankroll
Total money dedicated to sports betting — strictly separatefrom daily expenses.
Bookmaker
Company or individual that accepts bets and profits from the margin on odds.

C


Cash Out
Option to close a bet before the match ends to secure partial profit or limit a loss.

Odds
The number showing how much you win per unit staked. Odds 2.50 on 10 = 25 if you win.

E


Expected Value (EV)
Calculation showing if a bet is profitable long-term. Positive EV = good bet. Negative EV = losing bet long-term.

H


Handicap
A bet where one team starts with an imaginary advantage or disadvantage. PSG -1.5 goals means PSG must win by 2+ goals.

O


Over/Under
Bet on total goals in a match. Over 2.5 = 3+ goals. Under 2.5 = 0, 1, or 2 goals.

R


ROI (Return on Investment)
(Total profit / Total staked) × 100. 5% ROI over 1000 bets = excellent.

V


Value Bet
A bet where you believe the true probability is higher than the bookmaker's implied probability.