Odds & Betting Data: Best Datasets & Databases 2026

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Real-time gambling monitoring, by contrast, is an adjacent operational layer concerned with observing platform activity, controls, and system behavior from a monitoring or oversight perspective. Keeping these layers separate improves architecture clarity and helps teams assign the right controls to the right systems. They may carry timer updates, round progression, score changes, table events, or dealer/game-state signals. They are usually structured around high-frequency market changes, versioned price states, and fast distribution into trading or display services. These feeds primarily deliver pricing updates, market availability, suspensions, and outcome-related data. Operators often group multiple live data systems together, but they serve different purposes and are implemented differently. Snapshot endpoints can provide the latest known full state after a disconnect, while backfill or replay functions help recover missed updates in sequence.
As expected, when the number of outs increases, so do your chances of winning. Generally speaking, as the value of the dealer’s upcard increases, the probability of them busting decreases. Generally speaking, the odds of winning in blackjack are more in favour of the dealer compared to the player (49% vs. 42%, respectively). Blackjack odds refer to the probability of you winning, losing, or tying in a hand, based on the cards you’ve been dealt and the dealer’s upcard.
ScenarioOdds (Approx.)ExplanationHouse edge0.5%If played with a perfect strategy. For example, on a European roulette wheel, there are 36 red and black numbers with one green number (0), making 37 total pockets. Much less likely is the probability of the same number coming out on two consecutive spins (0.073% for European roulette and 0.069% for American roulette). This is due to the additional green number (00), which increases the likelihood of successive same-colour spins by adding another pocket into the equation. In other words, you would need to do about 3.12 million sets of 20 consecutive spins on a European roulette table to stand any chance of achieving this (and around 1.8 million on an American table). By the time you reach 20 consecutive spins, the probability is reduced to around 1 in 3,120,000 for American roulette and 1 in 1,818,182 for European roulette. For example, the probability of landing on red or black after one spin is slightly under half.
Gambling disorder impacts nearly 16% of adults and over 26% of adolescents who participate in online casino games or slot machine activities. The number of online casino players in the country is projected to reach 50.3 million by 2029, while user penetration is anticipated to grow from 9.4% in 2024 to 14.3% in 2029. Further, the market is estimated to grow at a CAGR of 9.96% between 2024 and 2029 and is expected to reach $10.11 by the end of the forecast period. The revenue of the online casino market in the United States was estimated to reach $6.29 billion in 2024. The online casino market’s revenue worldwide is projected to grow by a CAGR of 5.56%, reaching an estimated value of $45.88 billion by 2029.
Wynn Macau, the ninth-biggest casino in the world by area, boasts 1,100 gaming tables (the most of any casino in the top 10) and around seven times more than WinStar in first. Saying that, the Venetian does have almost twice the amount of hotel capacity and five times the number of gaming tables by comparison (despite being less than a tenth of the size). Located in Oklahoma (USA), this behemoth is almost 10% bigger than The Venetian Macau in second place, with almost three times the number of slot aussie pokie machines.
Every casino game has a statistical probability against you winning each time you play. Traditional casino games (which include slots and table games) contributed almost three-quarters (74.2%) of this, to the tune of $49.38 billion — a 3.3% increase from the previous year. By 2024, the total figure for casino gambling revenue reached a reported $71.92 billion (a rise of 7.9% in the space of 12 months). In March 2025, US revenue from online casinos reached $905.6 million, representing a rise of more than a quarter (26.2%) from the previous year. This constituted two-thirds of the country’s total GGR for the quarter and was almost five times the value of iGaming GGR for the same period.
The growth in traditional casino gaming was driven by a boost in slot machine revenue that offset a decrease in table games. According to AGA’s casino stats report, slot machine and table game revenue across the US reached $12.46 billion as of Q1 2025. Overall, slot machine odds can be some of the worst, ranging from 1-in-5,000 to about a 1-in-34 million chance of winning the top prize (while using maximum coin play). Their findings suggest this affects around one in six (15.8%) of adults and more than one in four (26.4%) adolescents. In regulated markets, such as the UK and Germany, where strict betting and spending limits apply, players who reach these protective limits may continue to gamble on unregulated platforms. «A major challenge in effectively addressing problem gambling is unlicensed gambling operators. According to casino stats from AGA, almost three-quarters of US adults believe job creation is the main benefit of casinos, with around three in five positive about the tourism that it creates.
Although Japan‘s Criminal Code bans most forms of gambling, the country remains one of the largest gamblers in the world, with an annual loss of $24.1 billion in gambling in 2023. The United States, China, and Japan are among the leading countries in terms of gambling, collectively losing billions of dollars each year in gambling-related expenses. However, some countries have much higher gambling participation rates, with over half of their populations engaging in the activity.