88 terms · Last updated 15 August 2026
Sports betting has its own vocabulary, and most of it is simpler than it sounds. This glossary defines 88 terms in one sentence each, with a worked example wherever a number makes it clearer. It covers the basics, odds formats, the maths that decides whether a bet is any good, the bet types you will meet, live betting, and the discipline side that separates a bankroll that grows from one that disappears.
Decimal odds tell you how much you get back per €1 staked, including your stake. Odds of 2.00 return €2 for every €1 you put on, which is your €1 back plus €1 profit.
Example. A €10 bet at odds of 1.60 returns €16 if it wins: €10 stake back plus €6 profit.
The stake is the amount of money you put on a single bet. It is the only figure you can control completely, which is why staking discipline matters more than pick selection for most bettors.
A unit is a fixed percentage of your bankroll, usually 1 to 2 percent, used as your standard stake. Talking in units instead of euros lets everyone follow the same picks regardless of how big their bankroll is.
Example. On a €1,000 bankroll with a 1 percent unit, one unit is €10. A "2 unit" pick means €20.
Your bankroll is the total money you set aside only for betting, separate from money you need for living. Never bet money you cannot afford to lose, and never top the bankroll up mid-losing-streak.
The payout is your stake multiplied by the odds, which is what you receive if the bet wins. Profit is the payout minus the stake, so a €20 bet at 1.75 pays out €35 and profits €15.
A bookmaker, or book, is the company that sets odds and accepts bets. Different bookmakers price the same match differently, and that disagreement is where most betting value comes from.
A market is one specific question you can bet on within a match, such as who wins, how many goals are scored, or whether both teams score. One football match typically offers hundreds of markets.
A selection is the single outcome you back inside a market, for example "Home win" inside the match-result market. One bet can contain one selection or many.
The moneyline, written 1X2 in football, is the simplest market: home win, draw, or away win. In sports without draws, such as basketball or tennis, it is a straight two-way choice.
A bet is settled once the event finishes and the bookmaker has paid it out as a win, a loss, or a returned stake. Until then it counts as pending and should not be included in any profit figure.
The same price looks different depending on where you bet. These three formats describe identical probabilities.
Decimal odds are the European standard and show your total return per unit staked, stake included. They are the easiest format for comparing prices, which is why every pick we publish uses them.
Example. 2.50 means €2.50 back per €1, so €1.50 of that is profit.
Fractional odds are the traditional UK format and show profit relative to stake, not total return. To convert to decimal, divide the fraction and add 1.
Example. 3/1 pays €3 profit per €1 staked, which is 4.00 in decimal. 1/2 is 1.50 in decimal.
American odds, also called moneyline odds, use a plus or minus sign around a base of 100. A positive number is the profit on a 100 stake, a negative number is the stake needed to profit 100.
Example. +150 equals 2.50 decimal. -150 equals 1.67 decimal.
This is the section that decides whether betting is a hobby that costs money or a discipline that makes it.
A value bet is one where the odds are higher than the true probability of the outcome justifies. Betting value consistently is the only way to profit long term, and it is what we hunt for.
Example. If a team genuinely wins this fixture 60 percent of the time, fair odds are 1.67. Anything above that, say 1.80, is value.
Implied probability is the chance an outcome happens according to the odds, calculated as 1 divided by the decimal odds. It converts a price into a percentage you can argue with.
Example. Odds of 2.00 imply 50 percent. Odds of 1.60 imply 62.5 percent. Odds of 4.00 imply 25 percent.
Your edge is the statistical advantage you hold over the bookmaker on a given bet, expressed as the gap between your estimated probability and the implied probability of the price.
Example. You rate an outcome at 55 percent, the price of 2.00 implies 50 percent, so your edge is 5 percentage points.
Expected value is the average result of a bet if you could repeat it endlessly. A positive EV bet makes money over time even when this particular one loses, which is why single results prove nothing.
Example. A €10 bet at 2.00 on a 55 percent shot has an EV of plus €1: (0.55 × €10) minus (0.45 × €10).
The overround is the bookmaker's built-in profit margin, visible when the implied probabilities of every outcome add up to more than 100 percent. The excess above 100 is what you are paying to bet.
Example. Both sides priced at 1.91 imply 52.4 percent each, totalling 104.8 percent, so the overround is about 4.8 percent.
Fair odds are the price with the bookmaker's margin stripped out, representing the true probability alone. Comparing a real price against fair odds is how you tell value from a trap.
ROI is profit divided by total amount staked, shown as a percentage. It measures how efficient your betting is, rather than how much you happened to bet.
Example. Staking 100 units across a month and finishing 8 units up is an ROI of 8 percent.
Yield is the tipster's version of ROI: average profit per bet placed, as a percentage of stakes. A yield of plus 10 percent means plus 10 units for every 100 units staked.
The closing line is the final price right before a match starts, after all money and information have moved it. It is the market's most accurate estimate of the true probability.
Closing line value is the gap between the price you took and the closing line. Consistently beating the closing line is the strongest single sign that a bettor is genuinely sharp rather than lucky.
Example. Backing at 2.00 a selection that closes at 1.80 means you beat the close by about 11 percent.
Sample size is how many settled bets a record covers. Anything under a few hundred bets tells you almost nothing about skill, because normal variance can produce huge profits or losses over short runs.
A single is one selection in one bet. It carries the lowest variance of any bet type and is what disciplined bettors use almost exclusively.
An accumulator combines several selections into one bet, and every leg must win for it to pay. The odds multiply, which looks attractive, but so does the bookmaker's margin on each leg.
Example. Four legs at 1.50 combine to 5.06, but all four must land.
A double is an accumulator with exactly two selections, a treble has exactly three. The same all-or-nothing rule applies.
A combo is any bet that joins several selections together for bigger odds. It is a general term that covers doubles, trebles and accumulators.
A system bet splits several selections into every possible smaller combination, so you still get a partial return if one leg fails. It costs more up front because you are effectively placing many bets at once.
An over/under bet is on whether a statistic finishes above or below a line the bookmaker sets, most often total goals or points. Half-goal lines like 2.5 exist so the bet cannot end level.
Example. Over 2.5 goals wins if the match ends with three or more goals.
A handicap gives one side a virtual head start or deficit to level an uneven match. The favourite must win by more than the handicap for the bet to land.
Example. Backing a team at minus 1.5 needs them to win by two clear goals.
An Asian handicap removes the draw by using fractional lines, and quarter lines such as minus 0.25 split your stake across two handicaps. It produces half wins and half losses rather than only two outcomes.
BTTS is a simple yes or no bet on whether both teams find the net. The final score and the winner are irrelevant, only whether each side scored at least once.
Draw no bet backs a team to win with your stake returned if the match ends level. It is insurance against the draw, paid for with shorter odds.
Double chance covers two of the three football outcomes in one bet, such as home win or draw. It wins more often than a straight pick and pays considerably less.
A correct score bet names the exact final scoreline. The odds are long because the number of plausible scorelines is large, which makes it a poor home for serious stakes.
Player props are bets on an individual's performance rather than the team result, such as shots on target or points scored. Bookmakers price them less sharply than main markets, so value hides here more often.
In-play betting means placing bets while the event is running, with odds updating continuously. Margins are usually wider and decisions are rushed, which is a bad combination for most bettors.
Cash out lets you settle a bet early for a value the bookmaker calculates. That value always contains their margin, so cashing out systematically costs money over time.
Line movement is the change in odds between opening and kick-off, driven by money placed and by news such as team selection. Reading the direction tells you what the market has learned.
A steam move is a fast, broad price shift across several bookmakers at once, usually caused by respected money arriving. It signals information you may not have.
Sharp money is the stake volume from bettors the bookmaker considers skilled, and it moves prices far more than casual money does. Following it late is usually too late.
A limit is the maximum a bookmaker will accept on a bet or an account. Winning bettors frequently see their limits cut, which is an obstacle no strategy removes.
Confirmed lineups are the official team sheets published shortly before kick-off, usually about an hour ahead in football. Prices set before them are guesses about who actually plays.
A push or void is a bet that is cancelled or lands exactly on the line, so your stake is returned with no win or loss. It counts as neither a winner nor a loser in an honest record.
Hit rate is the percentage of your bets that win. A high hit rate does not mean profit, because odds matter more than frequency: 70 percent winners at 1.20 loses money over time.
Variance is the natural swing of results around their true average. Even a genuinely winning strategy produces losing weeks and months, and discipline is what carries you through them.
Drawdown is the distance from your bankroll's peak to its lowest point afterwards. Knowing the drawdown you can survive is more useful than knowing the profit you hope for.
A staking plan is the set of rules deciding how much goes on each bet. It protects the bankroll and takes the decision away from emotion at exactly the moment emotion is loudest.
Flat staking puts the same amount on every bet regardless of confidence. It is the simplest plan, the hardest to blow up with, and the one most tipping records assume.
The Kelly criterion sizes each stake in proportion to your edge and the odds, in theory maximising long-term growth. Most practitioners use a fraction of it, because full Kelly swings violently when your edge estimate is wrong.
Chasing means raising stakes to win back what you have lost. It is the fastest way to empty a bankroll, it never appears in a real strategy, and we never do it.
Tilt is betting driven by frustration rather than analysis, usually straight after a bad beat. The tell is placing a bet you could not justify in writing an hour earlier.
A bad beat is a losing bet that was correct on the analysis and lost to a late or freak event. Judging picks by outcome rather than process turns bad beats into bad decisions.
A track record is the full published history of a tipster's picks and how they settled, including the losers. A record that cannot be checked pick by pick, with dates and prices, is marketing rather than evidence.
Ours is public. Every pick we publish appears in the results archive, settled and never edited.
Responsible gambling means betting only what you can afford to lose, setting limits before you start, and treating it as a long game rather than a way to get rich quickly. If it stops being fun, stop.
Help. Free, confidential support is available at BeGambleAware, or in Slovakia at Zodpovedné hranie.
Beyond the match result, these are the markets you will meet most often in the leagues we cover.
A clean sheet market asks whether a team finishes the match without conceding a goal. It is priced separately for each side and is unaffected by how many they score themselves.
A bet on which player scores the opening goal of the match. Most bookmakers void the bet and return the stake if your player was not on the pitch when the first goal went in.
A bet that a named player scores at any point in the match. It is far more likely than first goalscorer and priced accordingly, and own goals never count.
A bet on the number of corners in a match, usually as an over/under line. It tends to follow territorial dominance rather than the scoreline, so a losing team chasing a goal often drives it.
A bet on bookings, priced either as a count of cards or as booking points, where a yellow and a red carry different values. Referee appointment matters more here than team form.
A single bet naming who leads at the break and who wins at the end. It pays long odds because you have to be right twice, and the draw-then-win outcomes are the hardest to hit.
Example. "Draw / Home" wins only if the match is level at half time and the home side wins it.
An over/under line that can sit on a quarter, such as 2.25, splitting your stake across two lines. It produces half wins and half losses instead of a single all-or-nothing result.
A bet builder combines several markets inside one match into a single price. The legs are correlated, and bookmakers price that correlation in their favour, so the margin is usually much heavier than on a standard bet.
An American-format bet that moves the handicap or total in your favour across several selections in exchange for much shorter odds. Every leg still has to win.
The standard handicaps in hockey and baseball, almost always set at 1.5 goals or runs. They exist because those sports produce low, tightly clustered scorelines.
Vocabulary you will hit the moment you go past a single bookmaker account. We do not run these strategies ourselves, but you should know what the words mean.
An exchange matches bettors against each other instead of against a bookmaker, and takes a commission on net winnings. Prices are usually sharper because they come from the market rather than a margin-setter.
Backing means betting that something will happen, which is what you do at every ordinary bookmaker. On an exchange it is one half of the transaction.
Laying means betting that something will not happen, putting you in the bookmaker's seat. Your liability is the stake multiplied by the odds minus one, so laying long shots ties up a lot of money.
Example. Laying €10 at odds of 5.00 risks €40 to win €10.
The percentage an exchange takes from your net winnings on a market, typically 2 to 5 percent. It replaces the bookmaker's margin and has to be included in any value calculation.
Arbitrage means covering every outcome at different bookmakers whose prices disagree enough to guarantee a small profit. It is legal but accounts that do it are limited or closed quickly.
Matched betting uses a bookmaker's free bet alongside a lay bet on an exchange to lock in most of the bonus as profit. It extracts value from promotions rather than from picking winners.
Hedging means placing a second bet on the opposite side to reduce risk or lock in part of a profit. It costs expected value, and it buys certainty in exchange.
Middling means backing both sides at different handicap or total lines so that a result landing between them wins both bets. The downside is limited to the margin on the two prices.
Example. Over 2.5 at one book and under 3.5 at another both win if the match ends with exactly three goals.
An each-way bet is two bets of equal stake: one on the win, one on a place finish at a fraction of the odds. It is standard in racing and golf, where fields are large.
A bet placed well before the event, often on a season outright. Prices are longer, but your stake is usually lost if your selection never takes part.
A free bet is promotional credit that returns winnings without the stake, and rollover, or wagering requirement, is the number of times a bonus must be bet before it can be withdrawn. Read the requirement before the headline number.
Example. A €50 bonus with 6x rollover means staking €300 before a withdrawal is possible.
A temporarily improved price a bookmaker offers, usually capped at a small stake. Genuine boosts can be real value; most are applied to selections that were poor prices to begin with.
The inputs behind a pick, and the traps in reading them.
Expected goals rates the quality of chances a team created, rather than whether they went in. Over a run of matches, xG predicts future scoring better than actual goals do, which makes it a core input rather than a curiosity.
Example. A side losing 1-0 while creating 2.4 xG played far better than the scoreline says.
Form is a team's recent run of results, usually the last five or six matches. It is the most quoted and least reliable input, because it ignores the quality of opponents faced.
The historical record between two teams. It carries far less information than most punters assume, since squads and managers turn over completely within a few seasons.
Injury, suspension and selection information ahead of a match. It is the single biggest mover of prices in the final hours, which is why a pick made before it is a different bet from one made after.
The chance a manager rests key players because of fixture congestion or a bigger match coming. Cup competitions and midweek rounds are where it wrecks otherwise sound analysis.
A match where the result no longer affects either team's season. Motivation collapses in unpredictable ways, so prices become unreliable and we usually stay out.
Extreme runs tend to drift back toward a team's true level. A side converting an implausible share of chances will usually stop, and the market is often slow to price that in.
A sharp is a bettor whose money moves prices because bookmakers respect it. A square is a recreational bettor whose money does not. The terms describe how a book treats the account, not how clever anyone is.
Someone who publishes betting selections, free or paid. The only meaningful way to judge one is a complete, timestamped record including losers, which is why ours is public.
A tout is a seller of tips who leans on guaranteed-win language, screenshots of winners only, and pressure to buy now. The tell is always the same: no verifiable record of the losing bets.
Odds of 1.60 return €1.60 for every €1 staked, so a winning €10 bet pays €16 and profits €6. They also imply the outcome happens about 62.5 percent of the time.
Units express stakes as a percentage of bankroll, so the same pick works for someone with €200 and someone with €20,000. It also makes records comparable, because profit in units does not depend on how rich the bettor is.
No. Profit depends on odds as well as frequency, so 70 percent winners at odds of 1.20 loses money while 40 percent winners at 3.00 makes it. Judge a record by ROI or yield, never by hit rate alone.
Sustained ROI in the low single digits to around 10 percent is considered strong over a large sample. Anyone advertising 50 percent monthly returns is either on a short lucky run or not showing you the losers.
Short runs are dominated by variance, so a handful of winning weeks proves nothing either way. Treat a few hundred settled bets as the point where a record starts carrying real information about skill.
Accumulators multiply the bookmaker's margin along with the odds, so they carry a worse expected value than the same selections backed singly. They are entertainment, not strategy.
Fix your stake as a small percentage of a bankroll you can afford to lose, and never raise it to recover a loss. Staking discipline protects you from the mistake that ends most betting careers.
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