Learn and understand sports betting.

01.1 How does sports betting work? Market, odds, stake, settlement: what happens between your tap and the final whistle. → 01.2 How does a first sports bet work? What actually happens, step by step, and what to check before you confirm. → 01.3 Single bet or accumulator: what are the differences? What multiplying odds does to the potential payout, and to your chances of landing it. → 01.4 What budget should you set for sports betting? Working out what you can afford to lose before you play, and why it matters when you decide. → 01.5 Bankroll in sports betting: definition and management What you're prepared to lose, and how you slice it up. → 01.6 What are the risks of sports betting? Your stake can vanish completely. The risks to know about, and the tools that exist to protect you. → 01.7 The most common mistakes when starting out in sports betting Chasing, bigger stakes, piled-up selections: the mistakes that cost the most. → 01.8 How do you check that a bookmaker is licensed? Licences, what they protect you from, and the tell-tale signs of an unlicensed site. → 01.9 Free bets: what one is really worth What a free bet is worth once you factor in the odds, the terms and the rules where you live. → 01.10 Free bet calculator Interactive tool Work out the expected value of a stake-not-returned free bet from its odds and the market margin: return if it wins, no-vig probability. No account needed. → 01.11 How do you track your bets: what data should you record? The data to record so you can work out an honest ROI. → 01.12 Sports tipsters: how do you assess them and avoid the traps? A high strike rate can easily hide a negative ROI. → 01.13 The X accounts worth following to better understand sports betting X accounts that explain their method and how they read the market. No predictions to copy. →

02.1 1X2 betting: understanding the 1, X and 2 odds 1, X or 2: the most common three-way result market in football. → 02.2 Moneyline: how does betting on the winner work? Betting on the winner, usually two-way. Common in tennis and basketball. → 02.3 Double Chance: what do 1X, 12 and X2 mean? 1X, 12 or X2: one bet, two of the three 1X2 outcomes covered. → 02.4 Draw No Bet: how does the refund-if-drawn bet work? You back one team, and if the match ends level, you get your stake back. →

02.5 Over/Under: understanding totals betting Over 2.5 is a line and a price. Learn to stop mixing them up. → 02.6 BTTS: what does "both teams to score" mean? Will both teams score? A market that often moves with Over/Under, but isn't the same thing. → 02.7 Correct score: how does this market work? A market with loads of outcomes: why the odds run high, and what that doesn't tell you. →

02.8 Handicap betting: how does it work? An adjustment applied to the score, the margin or the total. Two families that are easy to mix up. → 02.9 European Handicap: how it works and how it differs from Asian A whole-number handicap, three possible outcomes, handicap draw included. → 02.10 Asian Handicap: lines, refunds and half-wins explained Two sides, refunds, quarter lines and half-wins: the full settlement table, line by line. →

02.11 Secondary and specialty markets: corners, goalscorers, cards and player statistics Corners, cards, goalscorers, player stats: a more specific market isn't an easier one to call. →

02.12 In-play betting: what changes once the match has started Price, suspensions, confirmation delay: what changes after kickoff, and what OddScore stops analysing. → 02.13 Cash Out: understanding the buyback offer on a bet The bookmaker buys your bet back at a price it sets itself. Here's how to size up that offer. →

03.1 Odds formats: decimal, fractional, American Decimal, fractional, American: learn to read and convert every odds format. → 03.2 Implied probability: converting an odd into a percentage Go from the odds to the implied probability: the formula, a table of examples and a calculator. → 03.3 Margin-free odds: removing the overround from a market How to hand the overround back to the outcomes, and what the result can't tell you. → 03.4 Fair odds: from an estimated probability to a fair price From an estimated probability to fair odds, in all three formats. → 03.5 Value bet: what the edge actually measures Spotting the gap between odds and an estimate, before you calculate the EV. → 03.6 Closing line value: comparing with the market's last price Another way to judge a price, without having to estimate a probability yourself. → 03.7 Odds converter Interactive tool Convert odds between decimal, fractional, American and implied probability. Four fields in sync, with gross return and net profit. No account needed. → 03.8 Arbitrage between bookmakers: what a price gap reveals Where a price gap between two operators comes from, and why it never sticks around. →

04.1 How do bookmakers make money? What a bookmaker takes in, what it pays out and what it actually keeps. → 04.2 Bookmaker margin: definition and calculation Implied probabilities, overround and margin-free odds: the calculation, step by step. → 04.3 Bookmaker margin calculator Interactive tool Calculate a bookmaker's margin from its odds: book percentage, overround, theoretical payout and estimated margin-free odds per outcome. No account needed. →

04.4 What are the different types of bookmakers? Sharp, soft, market maker, follower: who does what when odds get made. → 04.5 Sharp or soft bookmaker: what are the differences? Limits, reaction speed, margin and who they're really after. → 04.6 Bookmaker or betting exchange: what's the difference? Two very different ways to organise a bet and get paid for it. →

04.7 Bookmakers licensed in France by the ANJ → 04.8 Bookmakers licensed in Belgium by the Gaming Commission → 04.9 Bookmakers licensed in Switzerland by the Gespa → 04.10 Licensed bookmakers in Germany under the GGL → 04.11 Licensed bookmakers in Spain according to the DGOJ → 04.12 Licensed bookmakers in Italy according to the ADM → 04.13 Licensed bookmakers in Portugal according to the SRIJ → 04.14 Bookmakers licensed in the Netherlands by the Ksa → 04.15 Bookmakers licensed in Great Britain by the UKGC → 04.16 Bookmakers licensed in Brazil by the SPA/MF → 04.17 Bookmakers authorised in the United States, state by state → 04.18 Bookmakers authorised in Canada, province by province →

06.1 How do you analyse a match before betting? Form, context, head-to-head, stats, then the odds: the full framework, in order. → 06.2 How do you make a sports prediction? Five steps, from collecting data to comparing it with the market. → 06.3 How do you evaluate a sports prediction? Judging the reasoning rather than a single result. → 06.4 Is a reliable prediction really possible? No prediction is guaranteed. Here's how to tell whether one holds up. → 06.5 The most common mistakes in sports predictions Confirmation bias, chasing losses, overconfidence: what distorts an analysis most. →

06.6 Odds and predictions: how to use odds in your analysis How to treat odds as one piece of your analysis without mistaking them for a sure thing. → 06.7 Why look at odds movements before a prediction? What an odds movement tells you, and the one thing it never will. → 06.8 Prediction or odds analysis: what is the difference? Sporting intuition or market reading: two ways to size up the same match. →

06.9 Football predictions: how to analyse a match The 1X2 market, the weight of the draw, form and the fixture list. → 06.10 Basketball predictions: how to analyse a game Winner, spread and over/under points, in the NBA and the EuroLeague. → 06.11 Tennis predictions: how to analyse a match Surface, recent form and head-to-head records: what to check before the match. → 06.12 NFL predictions: how to analyse a game Winner, spread and over/under points, in the NFL and NCAAF. → 06.13 Ice hockey predictions: how to analyze a game Winner, puck line, over/under goals: how to read an NHL game. →

06.14 AI and sports predictions: what it really changes What AI can do with betting data, and why it never gives you certainty. → 06.15 The limits of sports predictions generated by AI Incomplete data, a black box, and a figure that looks more precise than it is. → 06.16 Can you predict a match result with AI? Estimating a probability isn't the same as predicting a result. → 06.17 Football predictions and artificial intelligence xG, form and market data, and why football stays hard to model. → 06.18 Poisson and xG models in football Poisson's law, xG and the assumptions behind them: what these models take for granted, and how to check them against the market. →

07.1 ROI and yield in sports betting: calculation and interpretation The first metric to learn, and its limits. → 07.2 Expected value (EV): understanding the theoretical edge of a bet What the average expected outcome means, and what it doesn't. → 07.3 Variance in sports betting: why do results swing? A good decision can lose. A bad one can win. → 07.4 Drawdown: measuring the dips in a bankroll Same final result, two journeys: one smooth, the other through a 45% hole. → 07.5 Risk of ruin: how can a bankroll be exhausted? How a badly sized stake can wipe out a bankroll. → 07.6 Risk management in sports betting: what can you actually control? You can set your exposure. You can't set the result. → 07.7 Staking plans: comparing methods by their effect on risk Every plan judged on risk of ruin and drawdown, with no promised return. → 07.8 Kelly criterion: what the formula actually sizes The formula that turns an edge into a stake size. It never tells you whether the edge is real. → 07.9 How many bets does it take to evaluate a performance? What decides how much data you need. → 07.10 Sports betting, stocks and crypto: can you really call it investing? Similar methods, very different products. → 07.11 Sports betting winnings tax: what each jurisdiction says What happens to a betting win depending on where you're tax resident, with the official source for each country. →