The definitive Australian sports betting glossary. Over 200 terms explained in plain English — from accumulator to zig-zag theory, covering every market type, odds format, strategy concept, and piece of betting jargon you’ll encounter.
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A
Accumulator (Acca): A multi bet combining multiple selections. All legs must win for the bet to pay. Also called a parlay or multi. See why multis compound the margin.
Action: Having a bet on an event. “I’ve got action on the Roosters” means you’ve bet on them.
Added Time: Extra minutes added at the end of each half in football (soccer) to compensate for stoppages. Markets typically settle on the result after added time but before extra time in cup matches.
All-In: A market where bets stand regardless of withdrawals or scratchings. Opposite of “field minus withdrawals.”
American Odds: Odds format used by US sportsbooks. Positive numbers (e.g. +150) show profit on a $100 stake. Negative numbers (e.g. -200) show the stake required to win $100. Convert using the Odds Converter.
Ante-Post: A bet placed well before an event, typically on racing futures. Usually at enhanced odds but with no refund if your selection doesn’t start.
ATS (Anytime Tryscorer): A market where your selected player scores at any point during the match. See tryscorer market analysis.
Asian Handicap: A handicap market that eliminates the draw as a possible outcome. Uses half-goals and quarter-goals to create precise handicaps. See Asian Handicap explained.
B
Back: Betting on an outcome to happen. The opposite of laying.
Bankroll: The total amount of money dedicated to betting. Should be money you can afford to lose. See bankroll management.
Barrier Draw: The starting gate allocation for each horse in a race. Significantly impacts performance, particularly in sprints. See barrier draws and track bias.
Base Rate: The historical frequency of an outcome. For example, the base rate for draws in the EPL is roughly 25%. Essential for overcoming availability bias.
Best Odds Guaranteed (BOG): A promotion where the bookmaker pays the higher of the price you took and the starting price. Common in racing.
BTTS (Both Teams to Score): A market where both teams must score at least one goal for the bet to win. See BTTS explained.
Bonus Bet: A promotional bet offered by a bookmaker. If it wins, you keep the profit but not the stake. The effective value of a bonus bet is approximately 40-70% of its face value depending on the odds used.
Book / Bookmaker / Bookie: The operator who sets odds and accepts bets. Australian examples include Sportsbet, Ladbrokes, TAB, PointsBet, Neds, and bet365.
Bounce-Back: A strong performance following a poor result. Teams that suffered heavy defeats often respond with improved intensity, particularly at home.
Buy: Betting on a total to be higher than the spread (in spread betting). Opposite of sell.
C
Chalk: The favourite. “Betting the chalk” means backing favourites.
Closing Line: The final odds offered before an event starts. The most informed price because it incorporates all available information. See closing line value.
CLV (Closing Line Value): The percentage difference between the odds you bet at and the closing odds. Positive CLV means you consistently beat the closing line — the strongest predictor of long-term profit.
Combined Odds: The total odds of a multi bet, calculated by multiplying the decimal odds of each leg together.
Completion Rate: In NRL, the percentage of sets of six completed without error. A key predictor of scoring and NRL form.
Confidence: The perceived strength of a betting selection. PuntLab uses HIGH, MEDIUM, and LOW confidence ratings on picks.
Contested Possession: In AFL, a possession won in a contest (stoppage, tackle, ground ball). The most predictive stat in AFL form analysis.
Correct Score: A market where you predict the exact final score. High margin but high payout.
Cover: When a team beats the spread/line. “The Roosters covered -6.5” means they won by 7 or more.
Cross-Sport Multi: A multi bet combining legs from different sports. Legs are independent, which makes these structurally superior to same-game multis.
D
Dead Heat: When two or more selections tie for a finishing position. Payouts are divided proportionally. Common in racing place markets.
Dead Rubber: A match with nothing at stake for one or both teams. Often produces unpredictable results and elevated draw rates.
Decimal Odds: The odds format used by Australian bookmakers. Represents total return per dollar staked including your original stake (e.g. $2.50 returns $2.50 for every $1 bet, including the $1 stake). See odds explained.
Derivative: A market derived from the main event — e.g. first-half result, corners, cards.
Dime: A $1,000 bet (US slang, occasionally used in Australian contexts).
DNB (Draw No Bet): A market where your stake is refunded if the match ends in a draw. Equivalent to Asian Handicap 0.
Dog: The underdog. The team or selection expected to lose.
Double: A two-leg multi bet.
Double Chance: A market allowing you to cover two of the three match result outcomes. Home/Draw, Away/Draw, or Home/Away.
Double Result: Predicting the result at both half-time and full-time.
Drift: When odds lengthen (move higher). “The favourite drifted from $2.50 to $3.20” means the market has moved against that selection.
Dutching: Backing multiple selections in the same market at calculated stakes to guarantee equal profit regardless of which one wins.
E
Each-Way (E/W): Two bets in one — a win bet and a place bet. If the horse wins, both pay. If it places (top 2-3), only the place portion pays. Place odds are typically 1/4 or 1/5 of win odds.
Edge: The advantage a bettor has over the bookmaker. Expressed as the difference between estimated true probability and the implied probability of the odds.
Even Money (Evs): Odds of $2.00 (decimal), 1/1 (fractional), or +100 (American). Implies a 50% probability.
EV (Expected Value): The average amount you expect to win or lose per bet over an infinite number of repetitions. Positive EV (+EV) means the bet is profitable long-term. See EV explained.
Exotic Bet: Any bet beyond standard win/place/each-way. Includes trifectas, first fours, quinellas, and other combination bets in racing.
Exposure: The bookmaker’s potential payout liability on a market.
F
Favourite: The selection with the lowest odds (highest implied probability) in a market.
Favourite-Longshot Bias: The systematic tendency for longshots to be overpriced and favourites to be underpriced in betting markets. One of the most documented cognitive biases in betting.
Field: All runners or teams in an event. “Betting the field” means backing any selection other than the nominated favourite(s).
First Four: An exotic racing bet requiring you to pick the first four finishers in correct order.
First Goalscorer (FGS): A market where your selected player must score the first goal/try. High margin, high variance.
Fixed Odds: Odds that are locked in when you place the bet, regardless of how the market moves before the event. Opposite of tote/pari-mutuel. See tote vs fixed.
Flat Staking: Betting the same amount on every bet regardless of odds or confidence. The simplest staking method.
Flexi Bet: An exotic bet where you can choose a percentage of the full dividend rather than staking the minimum. Available in Australian racing.
Form: A horse’s or team’s recent performance history. See guides for NRL, AFL, and NBA form.
Fractional Odds: UK odds format (e.g. 5/2, 3/1). The numerator is profit, the denominator is stake.
FTS (First Tryscorer): NRL/rugby league market where your player must score the first try of the match.
Futures: Long-term bets on outcomes decided weeks or months ahead — championship winner, MVP, season win totals.
G
Going: Track conditions in horse racing. Ranges from Firm 1 to Heavy 10 in Australia. See track conditions guide.
Grand Salami: A bet on the total combined score across all matches in a sport on a given day.
Green Up: Locking in a profit on a betting exchange by backing and then laying the same outcome at different odds.
H
Halftime/Fulltime (HT/FT): Predicting the result at both halftime and fulltime. Nine possible combinations.
Handicap: A points advantage or disadvantage applied to a team to create an even betting market. See Asian Handicap and line betting guides for NRL and AFL.
Handle: The total amount wagered on an event or market.
Head-to-Head (H2H): A two-outcome market where you pick which team wins. The most basic betting market in NRL, AFL, and NBA.
Hedge: Placing a second bet to reduce risk or guarantee profit on an existing bet.
Home Court/Ground Advantage: The statistical advantage enjoyed by the home team. Worth roughly 3-4 points in NRL, 8-10 points in AFL, and 2.5-3.5 points in NBA. See home advantage analysis.
Hook: A half-point in spread/line betting. “Getting the hook” means your line includes a 0.5 that eliminates the possibility of a push.
I
Implied Probability: The probability of an outcome as suggested by the odds. Calculated as 1/decimal odds × 100. $2.50 odds imply 40% probability. See odds explained.
In-Play (Live Betting): Betting on an event after it has started. Odds change in real-time based on the evolving match state.
Inside 50: In AFL, an entry into the attacking 50-metre arc. A key metric in AFL form analysis.
J
Juice: Another term for the bookmaker’s margin (vig/overround). See the vig explained.
K
Kelly Criterion: A mathematical formula for calculating optimal bet size based on your estimated edge and the odds available. See staking methods and the Kelly Calculator.
L
Lay: Betting against an outcome. Only available on betting exchanges. If you lay a team, you win if they lose or draw.
Leg: A single selection within a multi bet.
Liability: The amount a bookmaker stands to lose on a particular outcome.
Line: The points handicap set by the bookmaker. Also refers to the odds on any market. “The line has moved” means the odds have changed.
Lock: A bet perceived as certain to win (no such thing exists — treat this term with extreme scepticism).
Longshot: A selection at high odds with a low implied probability. Subject to the favourite-longshot bias.
LTS (Last Tryscorer): NRL market where your player must score the final try. Essentially unpredictable.
M
Maiden: In racing, a horse that has not yet won a race. In cricket, an over where no runs are scored.
Margin (Betting): The bookmaker’s built-in profit on every market. Also called the vig, juice, or overround. See the vig explained and the true cost of betting.
Margin (Result): The winning margin in a match, used in margin betting markets.
Market: A specific betting proposition. “Match result,” “Over/Under 2.5 goals,” and “first tryscorer” are all different markets within the same event.
Market Mover: A selection whose odds have shortened significantly due to money being wagered on it.
Middle: Winning both sides of a bet by exploiting differences between bookmaker lines. If you bet Team A -3.5 at one bookmaker and Team B +5.5 at another, a win by Team A by 4 or 5 wins both bets.
Moneyline: US term for the outright winner market (equivalent to head-to-head).
Multi: Australian term for an accumulator/parlay — a bet combining multiple selections. See multi bet analysis.
N
Nap: A tipster’s most confident selection of the day. From the card game Napoleon.
Net Rating: In the NBA, the difference between offensive rating and defensive rating. The most predictive stat in NBA form analysis.
No Bet: A void bet where your stake is returned. Typically occurs when a player doesn’t participate or a race is abandoned.
Novelty Bet: A bet on non-sporting events (elections, reality TV, etc.).
O
Odds: The price offered by a bookmaker, representing the payout ratio and implied probability. See odds explained.
Odds-On: Odds shorter than even money ($2.00). A $1.50 selection is odds-on, meaning you risk more than you stand to profit.
Opening Line: The first odds posted for an event. Often differ significantly from the closing line as information enters the market.
Over/Under: A market where you bet on whether a total (goals, points, corners) will be above or below a set line. See Over/Under 2.5 goals.
Overround: The percentage by which the total implied probabilities of all outcomes exceed 100%. A 105% market has a 5% overround. See the vig explained.
P
Pace: In NBA, the number of possessions per 48 minutes. In racing, the speed of the early running.
Parlay: US term for a multi/accumulator.
Pari-Mutuel: A betting system where all bets are pooled and dividends are calculated after deducting a commission. The Australian tote system. See tote vs fixed.
Place: Finishing in the first 2-3 positions (varies by field size and bookmaker). Place bets pay a fraction of the win odds.
Player Prop: A bet on an individual player’s performance. Points, rebounds, assists, disposals, tackles, etc.
Point Differential: The average difference between points scored and points conceded per game. The most fundamental quality metric across all sports.
Point Spread: US term for the line/handicap.
Positive EV (+EV): A bet where the estimated true probability exceeds the implied probability of the odds. The only type of bet worth placing long-term. See EV explained.
Post-Contact Metres: In NRL, the distance gained after initial contact with a defender. Measures forward pack dominance.
Price: Another word for odds.
Prop Bet: A proposition bet on a specific outcome within a game. Broader than player props — includes team props, game props, etc.
Public Money: Bets placed by recreational punters (as opposed to sharp money from professional bettors).
Punter: Australian/British term for a bettor.
Push: When the result lands exactly on the spread/total, resulting in a refund. Only possible with whole-number lines.
Q
Quinella: An exotic racing bet where you pick the first two finishers in any order.
R
Rail Position: In racing, the distance the running rail has been moved from the inside fence. Affects track bias.
Recency Bias: Giving disproportionate weight to recent results over long-term data. One of the most costly cognitive biases in betting.
Red Zone: In NRL, the area inside the opposition’s 20-metre line. Red zone efficiency is a key predictive metric.
ROI (Return on Investment): Your profit or loss as a percentage of total amount wagered. +5% ROI means you’ve profited 5 cents for every dollar bet.
Round Robin: A combination of parlays from three or more selections. Covers multiple multi combinations.
S
Scratching: The withdrawal of a runner from a race. Bets on scratched horses are typically refunded.
Sectional Times: Individual split times for sections of a horse race. Reveal hidden merit not visible in finishing positions. See sectional times explained.
Sell: Betting on a total to be lower than the spread (in spread betting). Opposite of buy.
SGM (Same Game Multi): A multi bet where all legs come from the same event. Carries higher margins than cross-event multis because legs are correlated.
Sharp: A professional or well-informed bettor. “Sharp money” moves lines.
Shortening: Odds becoming shorter (lower number, higher implied probability). “The favourite shortened from $3.00 to $2.50.”
Singles: Individual bets (as opposed to multis). Structurally superior to multis because margins don’t compound.
Speed Map: A visual representation of where each horse is predicted to sit during a race. See speed maps explained.
Spread: The points handicap set by the bookmaker. See line betting.
Square: A recreational bettor (opposite of sharp).
Stake: The amount of money you bet.
Starting Price (SP): The final odds at the time the event begins. Used as the settlement price for some tote bets.
Steam Move: A sharp, sudden odds movement caused by significant money entering the market. Typically indicates sharp action.
Straight Bet: A single bet on one outcome (as opposed to a multi or exotic).
Strength of Schedule: The average quality of opponents a team has faced. Essential context for form analysis across all sports.
Sunk Cost Fallacy: Continuing to bet (or increasing stakes) because of previous losses rather than because the current bet has value. See cognitive biases.
T
TAB: Totalisator Agency Board. Australia’s tote betting operator.
Teaser: A multi where you can adjust the spread in your favour on each leg in exchange for reduced odds.
Tilt: Making irrational betting decisions driven by emotion — typically after a bad loss or losing streak. The most immediate threat to bankroll management.
Tips: Betting recommendations from a tipster or analyst.
Tote: The totalisator/pari-mutuel betting system where dividends are calculated from the pool. See tote vs fixed.
Total: The combined score of both teams. See Over/Under markets.
Track Bias: A persistent advantage for horses racing in a particular position on the track. See track bias explained.
Treble: A three-leg multi bet.
Trifecta: An exotic racing bet requiring you to pick the first three finishers in correct order.
True Odds: The odds that would reflect the actual probability of an outcome, without any bookmaker margin.
True Probability: Your honest estimate of the probability of an outcome, independent of the bookmaker’s price.
U
Under: A bet that the total will be below the bookmaker’s line.
Underdog: The selection expected to lose (the opposite of favourite). Represented by the higher odds.
Underlay: Accepting a smaller bet on a selection you believe is overpriced, typically on a betting exchange.
Unit: A standard bet size, usually expressed as a percentage of your bankroll. See bankroll management.
V
Value: When the odds offered are higher than the true probability justifies. The fundamental concept of profitable betting. A $3.00 selection that you estimate has a 40% chance of winning (fair price $2.50) is a value bet.
Vig (Vigorish): The bookmaker’s margin on a market. See the vig explained and the true cost of betting.
Void: A cancelled bet where the stake is returned. Typically due to a player not participating or an event being abandoned.
W
Wager: A bet.
Wash: A bet that pushes (result lands exactly on the line). Stake returned.
Wise Guy: A sharp bettor whose action moves lines. Similar to “steam.”
X
xG (Expected Goals): A statistical model that measures the quality of chances created in football based on historical shot data. See xG explained.
xGA (Expected Goals Against): The expected goals a team concedes, measuring defensive quality.
xPoints: Expected points derived from xG simulation — reveals which teams have been lucky or unlucky relative to their underlying performance.
Y
Yield: Same as ROI — profit or loss as a percentage of total amount wagered.
Z
Zig-Zag Theory: The idea that teams bounce back after a loss in playoff series. Some data supports this in NBA and NHL playoffs where the losing team of the previous game covers the spread at elevated rates.
This glossary is maintained and updated by PuntLab. If you think we’re missing a term, let us know.
Related Reading
- Understanding Betting Odds — Odds formats in depth
- Market Percentages (The Vig) — How margins work
- Expected Value (EV) — The metric that matters
- The True Cost of Betting in Australia
- The Professional Punter’s Workflow
- Cognitive Biases That Cost Punters Money
Tools
Odds Converter Convert between all odds formats Vig Remover Strip the margin on any market Kelly Calculator Optimal stake based on your edge Betting Tracker Track every bet, measure performance