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    <title>DEV Community: Benjamin Jensen</title>
    <description>The latest articles on DEV Community by Benjamin Jensen (@benjamin_s_2b95516b6).</description>
    <link>https://dev.to/benjamin_s_2b95516b6</link>
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      <title>DEV Community: Benjamin Jensen</title>
      <link>https://dev.to/benjamin_s_2b95516b6</link>
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      <title>Building an AI Football Prediction Platform: Data, Probabilities and Model Evaluation</title>
      <dc:creator>Benjamin Jensen</dc:creator>
      <pubDate>Sat, 14 Nov 2026 23:00:00 +0000</pubDate>
      <link>https://dev.to/benjamin_s_2b95516b6/building-an-ai-football-prediction-platform-data-probabilities-and-model-evaluation-cd3</link>
      <guid>https://dev.to/benjamin_s_2b95516b6/building-an-ai-football-prediction-platform-data-probabilities-and-model-evaluation-cd3</guid>
      <description>&lt;p&gt;Football prediction is an interesting engineering problem.&lt;/p&gt;

&lt;p&gt;On the surface, the objective seems simple: collect football statistics, calculate probabilities and predict what happens next.&lt;/p&gt;

&lt;p&gt;But once you start building an actual prediction platform, things become considerably more complicated.&lt;/p&gt;

&lt;p&gt;How do you distinguish a good prediction from a lucky one? How do you evaluate probabilities instead of simply counting correct predictions? And how do you make a complex statistical model understandable to ordinary users?&lt;/p&gt;

&lt;p&gt;These are some of the questions behind &lt;a href="https://road2sushi.com/" rel="noopener noreferrer"&gt;Road2Sushi&lt;/a&gt;, an AI-powered football analytics project built around match predictions, probability estimates, historical results and transparent performance tracking.&lt;/p&gt;

&lt;p&gt;In this article, I'll explore the engineering and statistical challenges involved, the principles behind our product, and why model evaluation matters just as much as generating predictions.&lt;/p&gt;

&lt;h2&gt;
  
  
  1. The challenge: Football is inherently unpredictable
&lt;/h2&gt;

&lt;p&gt;Football is a relatively low-scoring sport, and individual events can have an enormous impact on the final result.&lt;/p&gt;

&lt;p&gt;A red card, an unexpected injury, a penalty or a single defensive mistake can completely change the outcome of a match.&lt;/p&gt;

&lt;p&gt;This makes football an interesting environment for probabilistic modeling.&lt;/p&gt;

&lt;p&gt;Instead of asking:&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;"Who will win this match?"&lt;/strong&gt;&lt;/p&gt;

&lt;p&gt;A more useful question is:&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;"What is the estimated probability of each possible outcome?"&lt;/strong&gt;&lt;/p&gt;

&lt;p&gt;Consider a hypothetical match:&lt;/p&gt;

&lt;div class="table-wrapper-paragraph"&gt;&lt;table&gt;
&lt;thead&gt;
&lt;tr&gt;
&lt;th&gt;Outcome&lt;/th&gt;
&lt;th&gt;Estimated probability&lt;/th&gt;
&lt;/tr&gt;
&lt;/thead&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td&gt;Home win&lt;/td&gt;
&lt;td&gt;48%&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;Draw&lt;/td&gt;
&lt;td&gt;27%&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;Away win&lt;/td&gt;
&lt;td&gt;25%&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;&lt;/div&gt;

&lt;p&gt;These numbers do not guarantee anything.&lt;/p&gt;

&lt;p&gt;Even if the home team has a 48% chance of winning, the model considers a different outcome more likely overall.&lt;/p&gt;

&lt;p&gt;A good prediction system should communicate uncertainty rather than disguise it.&lt;/p&gt;

&lt;p&gt;That's an important principle behind Road2Sushi.&lt;/p&gt;

&lt;h2&gt;
  
  
  2. Turning football data into useful predictions
&lt;/h2&gt;

&lt;p&gt;Football prediction platforms depend on structured match data.&lt;/p&gt;

&lt;p&gt;Depending on the available data sources and modeling approach, useful variables may include:&lt;/p&gt;

&lt;ul&gt;
&lt;li&gt;Historical match results and goal distributions&lt;/li&gt;
&lt;li&gt;Home and away performance&lt;/li&gt;
&lt;li&gt;Recent team form&lt;/li&gt;
&lt;li&gt;Goals scored and conceded&lt;/li&gt;
&lt;li&gt;League-level scoring patterns&lt;/li&gt;
&lt;li&gt;Match schedules and contextual information&lt;/li&gt;
&lt;li&gt;Historical performance in specific prediction markets&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;However, more data doesn't automatically produce better predictions.&lt;/p&gt;

&lt;p&gt;Data quality, relevance and timing are equally important.&lt;/p&gt;

&lt;p&gt;For example, a model trained on historical information must not accidentally use information that became available only after the match started.&lt;/p&gt;

&lt;p&gt;That would create &lt;strong&gt;data leakage&lt;/strong&gt;, making historical evaluation look substantially better than genuine forecasting performance.&lt;/p&gt;

&lt;p&gt;There is another issue: football teams evolve.&lt;/p&gt;

&lt;p&gt;Players change, managers leave, tactical approaches develop and seasonal conditions shift.&lt;/p&gt;

&lt;p&gt;A prediction system therefore needs a strategy for dealing with information that becomes less relevant over time.&lt;/p&gt;

&lt;p&gt;These are general modeling considerations rather than a claim that any one architecture solves all of them.&lt;/p&gt;

&lt;h2&gt;
  
  
  3. Why probabilities matter more than confident predictions
&lt;/h2&gt;

&lt;p&gt;One of the central ideas in Road2Sushi is presenting football predictions as probabilities.&lt;/p&gt;

&lt;p&gt;For example, a prediction might show:&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Over 2.5 goals — Model probability: 54.1%&lt;/strong&gt;&lt;/p&gt;

&lt;p&gt;This communicates something very different from saying that the match will definitely produce at least three goals.&lt;/p&gt;

&lt;p&gt;It also allows users to compare probabilities across different markets.&lt;/p&gt;

&lt;p&gt;Road2Sushi currently presents estimates for several football markets, including match results, goals, both teams to score, corners and cards.&lt;/p&gt;

&lt;p&gt;The challenge is making those probabilities interpretable.&lt;/p&gt;

&lt;p&gt;A 75% prediction should be understood as an event that is expected to occur around three times in four over a sufficiently large and comparable sample, assuming the probabilities are well calibrated.&lt;/p&gt;

&lt;p&gt;That final condition is crucial.&lt;/p&gt;

&lt;p&gt;A model can produce numbers that look precise without actually being reliable.&lt;/p&gt;

&lt;h2&gt;
  
  
  4. Understanding fair odds and market probabilities
&lt;/h2&gt;

&lt;p&gt;Another interesting feature of football analytics is the relationship between estimated probabilities and betting market prices.&lt;/p&gt;

&lt;p&gt;A model probability can be expressed as theoretical decimal odds.&lt;/p&gt;

&lt;p&gt;The calculation is straightforward:&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Fair decimal odds = 1 / estimated probability&lt;/strong&gt;&lt;/p&gt;

&lt;p&gt;For example:&lt;/p&gt;

&lt;div class="table-wrapper-paragraph"&gt;&lt;table&gt;
&lt;thead&gt;
&lt;tr&gt;
&lt;th&gt;Model probability&lt;/th&gt;
&lt;th&gt;Theoretical fair odds&lt;/th&gt;
&lt;/tr&gt;
&lt;/thead&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td&gt;80%&lt;/td&gt;
&lt;td&gt;1.25&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;60%&lt;/td&gt;
&lt;td&gt;1.67&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;50%&lt;/td&gt;
&lt;td&gt;2.00&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;40%&lt;/td&gt;
&lt;td&gt;2.50&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;25%&lt;/td&gt;
&lt;td&gt;4.00&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;&lt;/div&gt;

&lt;p&gt;If a model estimates a 60% probability, its corresponding fair odds are approximately 1.67.&lt;/p&gt;

&lt;p&gt;A bookmaker might offer a different price.&lt;/p&gt;

&lt;p&gt;That difference is interesting from an analytical perspective, but there is an important distinction:&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;A disagreement between a model and the market is not proof that the model is correct.&lt;/strong&gt;&lt;/p&gt;

&lt;p&gt;The model could be miscalibrated, missing relevant information or systematically overestimating certain outcomes.&lt;/p&gt;

&lt;p&gt;Bookmaker odds also contain margins, so converting them directly into probabilities does not always produce a clean comparison.&lt;/p&gt;

&lt;p&gt;At Road2Sushi, we display model probabilities alongside market information where available.&lt;/p&gt;

&lt;p&gt;The goal is to make that disagreement visible without presenting it as proof of a profitable advantage.&lt;/p&gt;

&lt;h2&gt;
  
  
  5. Evaluating predictions against actual results
&lt;/h2&gt;

&lt;p&gt;This is where prediction systems become genuinely interesting.&lt;/p&gt;

&lt;p&gt;Generating a probability is one thing. Measuring whether that probability was useful is another.&lt;/p&gt;

&lt;p&gt;A football prediction platform should preserve what was predicted before kickoff and compare it against the actual result.&lt;/p&gt;

&lt;p&gt;Otherwise, historical performance can become misleading.&lt;/p&gt;

&lt;p&gt;Road2Sushi maintains a public record of published predictions and settled outcomes.&lt;/p&gt;

&lt;p&gt;This allows visitors to explore historical results rather than seeing only selected successful examples.&lt;/p&gt;

&lt;p&gt;But there are several ways to evaluate a model.&lt;/p&gt;

&lt;h3&gt;
  
  
  Hit rate
&lt;/h3&gt;

&lt;p&gt;Hit rate measures the percentage of selections that were correct.&lt;/p&gt;

&lt;p&gt;For example, if 60 out of 100 predictions are correct, the hit rate is 60%.&lt;/p&gt;

&lt;p&gt;This is easy to understand, but it has limitations.&lt;/p&gt;

&lt;p&gt;A model consistently predicting extremely likely outcomes may achieve a high hit rate without being especially informative.&lt;/p&gt;

&lt;h3&gt;
  
  
  Brier score
&lt;/h3&gt;

&lt;p&gt;The Brier score is a way to evaluate probabilistic forecasts for binary events.&lt;/p&gt;

&lt;p&gt;For each prediction, the squared difference between the forecast probability and the actual outcome is calculated.&lt;/p&gt;

&lt;p&gt;For a binary event:&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Brier score = average of (predicted probability − actual outcome)²&lt;/strong&gt;&lt;/p&gt;

&lt;p&gt;The actual outcome is either 1 (occurred) or 0 (did not occur).&lt;/p&gt;

&lt;p&gt;Lower scores are better.&lt;/p&gt;

&lt;p&gt;For example, predicting an 80% probability for an event that occurs produces a smaller error than predicting a 30% probability for that same event.&lt;/p&gt;

&lt;p&gt;This is useful because it evaluates the quality of the probability estimate, not just whether the prediction happened to be correct.&lt;/p&gt;

&lt;h3&gt;
  
  
  Calibration
&lt;/h3&gt;

&lt;p&gt;Calibration asks whether predicted probabilities correspond to observed frequencies.&lt;/p&gt;

&lt;p&gt;If a model assigns approximately 70% probability to hundreds of comparable events, do around 70% of those events actually happen?&lt;/p&gt;

&lt;p&gt;A calibration plot can help answer that question.&lt;/p&gt;

&lt;p&gt;It is possible for a model to achieve a respectable hit rate while still producing poorly calibrated probabilities.&lt;/p&gt;

&lt;p&gt;These metrics are important evaluation techniques, although describing them here does not imply that every metric is currently implemented in the Road2Sushi dashboard.&lt;/p&gt;

&lt;h2&gt;
  
  
  6. Making model performance transparent
&lt;/h2&gt;

&lt;p&gt;One design decision I find particularly important is avoiding selective performance reporting.&lt;/p&gt;

&lt;p&gt;It is easy to show only successful predictions.&lt;/p&gt;

&lt;p&gt;It is much harder, and more useful, to maintain a public record that includes unsuccessful predictions.&lt;/p&gt;

&lt;p&gt;Road2Sushi provides historical prediction information and an evaluation area focused on published results.&lt;/p&gt;

&lt;p&gt;The platform also explicitly acknowledges that its testing has not established a consistent advantage over the sharp closing betting market.&lt;/p&gt;

&lt;p&gt;That distinction matters.&lt;/p&gt;

&lt;p&gt;A prediction model can be technically interesting, statistically informative and useful for exploring football data without having demonstrated a profitable betting strategy.&lt;/p&gt;

&lt;p&gt;For developers building prediction products, transparency is not just a marketing feature.&lt;/p&gt;

&lt;p&gt;It is part of responsible product design.&lt;/p&gt;

&lt;h2&gt;
  
  
  7. Building an interface for complex statistical information
&lt;/h2&gt;

&lt;p&gt;Even a well-designed statistical model can be difficult to use if the interface is confusing.&lt;/p&gt;

&lt;p&gt;Road2Sushi brings several types of information into one dashboard:&lt;/p&gt;

&lt;ul&gt;
&lt;li&gt;Upcoming football fixtures&lt;/li&gt;
&lt;li&gt;Model-generated probabilities&lt;/li&gt;
&lt;li&gt;Different prediction markets&lt;/li&gt;
&lt;li&gt;Theoretical fair odds&lt;/li&gt;
&lt;li&gt;Market comparisons where prices are available&lt;/li&gt;
&lt;li&gt;Historical prediction performance&lt;/li&gt;
&lt;li&gt;Multiple AI tipster strategies&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;The UX challenge is deciding what information should be immediately visible and what belongs in a detailed analysis view.&lt;/p&gt;

&lt;p&gt;A probability should never be confused with a guarantee.&lt;/p&gt;

&lt;p&gt;Theoretical odds should not be mistaken for a bookmaker's available price.&lt;/p&gt;

&lt;p&gt;And a historical winning percentage should not be presented without context.&lt;/p&gt;

&lt;p&gt;Clear labels, consistent terminology and accessible historical results are essential.&lt;/p&gt;

&lt;p&gt;The broader lesson applies to many AI products: &lt;strong&gt;explainability is not only a model problem. It is also an interface problem.&lt;/strong&gt;&lt;/p&gt;

&lt;h2&gt;
  
  
  8. AI tipsters as an experiment in strategy comparison
&lt;/h2&gt;

&lt;p&gt;Another part of Road2Sushi is its collection of AI tipster personas.&lt;/p&gt;

&lt;p&gt;Rather than presenting every selection through a single perspective, the platform lets users explore multiple prediction strategies.&lt;/p&gt;

&lt;p&gt;These agents are evaluated against actual settled match results, with simulated stakes used for comparisons.&lt;/p&gt;

&lt;p&gt;The simulated results are not real-money payouts.&lt;/p&gt;

&lt;p&gt;This provides an interesting way to explore how different selection approaches behave over time.&lt;/p&gt;

&lt;p&gt;For example, one strategy may favor higher-probability selections, while another may focus on less frequent outcomes.&lt;/p&gt;

&lt;p&gt;The important analytical questions are not simply which agent has the highest hit rate.&lt;/p&gt;

&lt;p&gt;They include:&lt;/p&gt;

&lt;ul&gt;
&lt;li&gt;How many predictions have been evaluated?&lt;/li&gt;
&lt;li&gt;How much uncertainty remains?&lt;/li&gt;
&lt;li&gt;Does the strategy perform consistently over time?&lt;/li&gt;
&lt;li&gt;How dependent are the results on a small number of outcomes?&lt;/li&gt;
&lt;li&gt;How do simulated returns change as the sample grows?&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;A strategy that looks exceptional after 20 selections may look very different after 500.&lt;/p&gt;

&lt;p&gt;Sample size matters.&lt;/p&gt;

&lt;h2&gt;
  
  
  9. What we're exploring next
&lt;/h2&gt;

&lt;p&gt;Working on a football prediction product highlights several areas worth continuing to improve.&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Better probability evaluation:&lt;/strong&gt; Understanding how predicted probabilities correspond to real-world outcomes.&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Clearer historical reporting:&lt;/strong&gt; Making it easier to distinguish short-term performance from longer-term evidence.&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;More useful visualizations:&lt;/strong&gt; Helping users understand why two probability estimates differ.&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Stronger data transparency:&lt;/strong&gt; Clearly separating model estimates, market prices, published predictions and verified results.&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Better user experience:&lt;/strong&gt; Presenting detailed statistics without overwhelming people who simply want to explore upcoming football matches.&lt;/p&gt;

&lt;p&gt;These are areas of ongoing interest, not promises that specific features or architectures have already been completed.&lt;/p&gt;

&lt;h2&gt;
  
  
  Final thoughts
&lt;/h2&gt;

&lt;p&gt;Building an AI-powered prediction platform is about much more than generating predictions.&lt;/p&gt;

&lt;p&gt;It involves data quality, probabilistic thinking, evaluation methodology, interface design and honest communication of uncertainty.&lt;/p&gt;

&lt;p&gt;Perhaps the most important lesson is this:&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;A model should not be judged by how confidently it predicts the future, but by how well its predictions hold up against reality.&lt;/strong&gt;&lt;/p&gt;

&lt;p&gt;That's the philosophy we're exploring with Road2Sushi.&lt;/p&gt;

&lt;p&gt;If you're interested in football analytics, probabilistic modeling or building data-driven applications, you can explore the project here:&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;&lt;a href="https://road2sushi.com/" rel="noopener noreferrer"&gt;Explore Road2Sushi – AI Football Analytics&lt;/a&gt;&lt;/strong&gt;&lt;/p&gt;

&lt;p&gt;I'd also be interested in hearing from other developers:&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Which metrics do you find most useful when evaluating probabilistic models: calibration, Brier score, log loss or something else?&lt;/strong&gt;&lt;/p&gt;




&lt;p&gt;&lt;em&gt;Disclosure: This article was prepared with AI writing assistance and reviewed for alignment with the publicly available features and stated limitations of Road2Sushi. It is a product and engineering overview, not a disclosure of proprietary model implementation or a claim of verified betting profitability.&lt;/em&gt;&lt;br&gt;
:::&lt;/p&gt;

</description>
      <category>ai</category>
      <category>webdev</category>
      <category>sideprojects</category>
      <category>football</category>
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