Editorial Policy & Data Methodology
Updated March 2026
Written and maintained by and Lior Tencher
Co-Founders, Lottorios · Last reviewed: March 2026
Lottorios is built on a single commitment: that every statistic, result, and prediction on this platform is accurate, honestly framed, and fully traceable to a verified source. This page documents exactly how we source data, how we build our analysis, what our predictions mean (and don't mean), and what happens when something goes wrong.
1. Data Sources
Every lottery draw result published on Lottorios is sourced from official lottery operator websites and their verified published data feeds. We do not accept user-submitted results. We do not rely on unverified third-party scrapers as a primary source. We do not publish a result until it has been confirmed against an official source.
Primary Sources by Category
US Lotteries (Powerball, Mega Millions, state games)
Results are sourced directly from official state lottery commission websites and, where available, official API data feeds published by Multi-State Lottery Association (MUSL) members. For state-specific games (e.g., New York Lotto, California SuperLotto Plus), we pull from each state commission's official results page.
European Lotteries (EuroMillions, EuroJackpot, national games)
Results are sourced from official national lottery operator websites in each jurisdiction. For EuroMillions, the primary source is the official EuroMillions results feed; national operator pages serve as secondary confirmation.
Other International Lotteries
For lotteries without a direct API, we source from the official operator's published results page and, for additional verification, from licensed lottery news services that maintain direct relationships with operators. We name the specific source on each lottery's results page.
Historical Database
Our historical draw database forms the foundation of all frequency and pattern analysis on the platform. The depth of data varies by lottery: some games have hundreds of draws in our database, others have more. Each lottery's page shows the draw count included in its analysis. The database has been cross-validated against multiple official sources and corrected for known data quality issues.
The database currently covers:
50+ lotteries across the US, Europe, and internationally
Hundreds to thousands of draw records per lottery
Data depth varies by game — shown on each lottery's page
What We Do Not Use
User-submitted draw results (never used as primary source)
Unverified third-party aggregators without traceable sources
Social media announcements or screenshots
Estimated or projected results before official confirmation
2. Update Frequency & Timeliness
| Data Type | Update Frequency | Process |
|---|---|---|
| Draw results (major lotteries) | Real time — as soon as confirmed from official source feed | Automated pipeline from official source feed |
| Draw results (smaller/international) | Real time — timing depends on operator data release | Automated pull from official operator page |
| Frequency statistics | Recalculated automatically after each confirmed draw | Triggered by draw confirmation event in pipeline |
| Jackpot estimates | Updated after each draw | Based on official operator announcement |
| Prediction models | Retrained quarterly, or immediately after operator rule changes | Manual review by Lior Tencher before deployment |
| Historical database | Continuous; full audit annually | Automated ingestion + annual manual verification |
All timestamps shown on result pages reflect when data was confirmed from the official source — not when it was published to our site. The two are typically within seconds of each other, but we display source-confirmation time as the authoritative timestamp.
Draw Delays
Occasionally, official lottery draws are delayed, postponed, or subject to result verification holds by the operator. In those cases, Lottorios will display a notice that results are pending official confirmation. We will never publish an unconfirmed result as final.
3. Prediction Methodology
Important: Lottery draws are random events governed by mechanical or electronic randomization independently certified by testing laboratories. No statistical tool can predict a random outcome with certainty. Everything in this section describes historical pattern analysis — not guaranteed future outcomes.
The prediction and analysis tools on Lottorios are built on the historical draw database described in Section 1. They are reviewed for accuracy by Lior Tencher before any update is deployed. Here is exactly how each tool works:
Frequency Analysis
We calculate how often each number has appeared across the draw history we hold for each lottery. Raw frequency counts are normalized by total draw count to produce a frequency rate — so a number that appeared 50 times in 100 draws scores the same as one that appeared 200 times in 400 draws. This ensures results are comparable regardless of how many draws are in a given lottery's dataset.
Hot numbers are those with above-average normalized frequency. Cold numbers are those with below-average normalized frequency. Neither label implies a prediction about future draws.
Gap (Overdue) Analysis
Gap analysis counts how many draws have elapsed since each number last appeared. We compare each number's current gap to its historical average gap — the average number of draws between appearances over its full history. A number with a current gap significantly above its historical average is flagged as "overdue."
Statistical note: In a truly random system, being "overdue" carries no predictive weight. Each draw is independent. We present gap data as an interesting pattern observation, not a prediction signal.
Pair & Triplet Correlation
We calculate how frequently pairs and triplets of numbers have appeared together in winning draws, normalized against the expected frequency under a purely random distribution. Pairs or triplets that appear together significantly more often than chance predicts are surfaced as high-correlation combinations.
This analysis is the most computationally intensive we offer and took the longest to validate. The correlation scores are cross-validated against randomized draw simulations to confirm they exceed the expected noise floor.
Sum Range Analysis
Across historical draws, the sum of all numbers in winning tickets clusters within a predictable range for each lottery — because truly extreme combinations (all low numbers or all high numbers) are statistically rare in large draws. We calculate the 25th to 75th percentile sum range from historical data and display it as the "common sum window." Players can check whether their selected numbers fall within this range.
Odd-Even Distribution Analysis
Across historical draws, winning combinations tend to contain a mix of odd and even numbers rather than being made up entirely of one type. We calculate the historical distribution of odd-even ratios across all draws for each lottery — for example, how often winning tickets contained 3 odd + 2 even numbers versus 4 odd + 1 even — and display those distribution percentages for each possible ratio.
Players can compare their chosen combination's odd-even ratio against the historical distribution to see how typical or unusual it is. As with all our tools, this describes past patterns only. A purely odd or purely even combination has exactly the same mathematical probability of being drawn as any other specific combination — the distribution data simply shows that such extremes have been historically rare.
Jackpot Cycle Modeling
We track the historical average jackpot accumulation cycle for each lottery — the typical number of draws between jackpot wins — and compare it against the current cycle length. This gives players context about where in the jackpot history the current game sits, without implying that a long cycle makes a win more likely in any individual draw.
Prediction Sets
Our suggested number sets are generated by combining signals from the above tools — weighting frequency, gap, and correlation data — to produce combinations that score well across multiple historical metrics simultaneously. These are not random number generators, but they are not oracles either. They surface statistically interesting combinations from historical data. Whether they win is up to chance.
4. Accuracy Standards & Review Process
Before any analysis, guide, or statistical claim is published on Lottorios, it passes the following review steps:
Data verification: Draw results confirmed against official source before publication. Automated validation checks flag anomalies (e.g., numbers outside the valid range, duplicate draws) for manual review.
Statistical review: Any claims about number frequencies, patterns, or correlations reviewed against the underlying dataset before publication.
Framing check: All editorial content reviewed to ensure predictions and statistical claims are framed as historical analysis, not guaranteed outcomes. Language that implies certainty is removed.
Odds disclosure: Official house odds displayed prominently alongside any prediction or analysis content.
Responsible gambling compliance: All major pages include responsible gambling resources and disclaimers consistent with our policy in Section 6.
Model Updates
When a statistical model is updated or a new analysis tool is added, Lior Tencher reviews the output against known historical data before it goes live. Model updates are versioned internally. If an update produces materially different outputs for the same historical inputs, we investigate before deploying.
5. Corrections Policy
We take data accuracy seriously. Errors in lottery results or statistical claims are corrected as quickly as possible following this process:
Reporting an Error
Email hello[at]lottorios.com with the following:
The page URL containing the error
A description of the incorrect information
The correct information and, where possible, the official source
Our Response
We review all correction requests within 48 hours
If the error is confirmed, the page is corrected immediately
A correction notice is appended to the affected page identifying what was changed and when
For draw result errors, the correction notice is permanent and the original incorrect value is documented in the notice
We will email you to confirm when the correction has been made
Automated Error Detection
Our pipeline includes automated validation that flags anomalous results — draw numbers outside the valid range, results that don't match the expected format, or results that conflict with a secondary source — for manual review before publication. This catches most data errors before they reach the site.
6. Responsible Gambling Disclaimer
Lottery is a legal form of entertainment in the jurisdictions Lottorios serves. All statistical tools, predictions, and editorial content on this site are provided for informational and entertainment purposes only.
No tool on this site guarantees a lottery win. Lottery draws are random. The expected value of a lottery ticket is always negative. Our statistics describe historical patterns — they do not predict future outcomes.
We are committed to responsible gambling across the platform:
Official odds are displayed prominently on every lottery page and alongside every prediction tool
Editorial content never frames statistical patterns as winning strategies
Responsible gambling resources are linked on every major page
We do not market to or create content targeting underage users
If You Need Support
7. Editorial Independence & Commercial Relationships
Lottorios is independently owned and operated by Lior Tencher. We are not affiliated with, sponsored by, or endorsed by any lottery operator. Our statistical analysis, draw result reporting, and editorial content are produced independently without influence from any third-party commercial relationship.
Affiliate Links
Lottorios may display affiliate links to licensed lottery ticket purchase platforms. Where we do, these links are clearly labeled with a disclosure notice. Affiliate relationships do not influence our statistical analysis, result reporting, or editorial content. We do not promote specific platforms in our analysis or give favorable treatment to affiliated services in our editorial content.
Advertising
If Lottorios displays third-party advertising, ads are clearly separated from editorial content. Advertisers have no influence over our statistical methodology or editorial decisions.
Predictions & Statistical Tools
We do not sell predictions, "insider picks," or guaranteed statistical services. Any changes to how tools and features are accessed will be reflected in an update to this policy before they take effect.
8. Questions & Feedback
If anything in this policy is unclear, or if you have questions about our methodology, we're happy to answer them directly.
email: hello[at]lottorios.com