Data over
intuition.
Marcelito was born from a simple conviction: sports betting should not be a game of chance, but a rational discipline. We analyse, we calculate, we prove. No promises, no miracles — just data.
Our mission
Democratise access to data-driven sports betting analysis, with transparency and responsibility.
Why Marcelito exists
Most bettors lose. Not from a lack of sports knowledge, but from a lack of method. Bookmakers have a structural edge: the margin. Without a calculated, disciplined edge, losses are mathematically certain over the long run.
Marcelito provides Expected Value, tracking and bankroll-management tools. They help structure a decision without guaranteeing that an edge exists or that a bet will win.
How we got here
Marcelito started as a personal project: a data scientist frustrated by the lack of serious tools to analyse odds. Forums are full of opinions, social networks of unverified « tipsters », but nowhere can you find raw, traceable, verifiable data.
We are building an engine that preserves pre-match observations, computes versioned probabilities and publishes every prediction with its timestamp. Results remain visible so errors are measured alongside successes.
Our values
Three non-negotiable principles that guide every decision, every prediction, every line of code.
- Data, not opinions
Every displayed probability comes from a versioned, traceable calculation. Marcelito must abstain when the available data is insufficient.
- Radical transparency
Verifiable, timestamped, non-retroactive track record. When we're wrong, we show it. When we're right, we prove it. No promise of profit, no fabricated result.
- Responsible gambling
We do not encourage more betting. Strict limits, no profit promise and clearly visible official safer-gambling resources.
Our methodology
From odds collection to published prediction, a rigorous and transparent process.
- Collection
Odds and sports data available from configured providers, with the observation time preserved.
- Analysis
Our engine removes the margin from many operators' odds to estimate each outcome's probability: the de-vigged market consensus, shown as the probability on every prediction.
- Edge
The engine compares the offered odds with its estimate and abstains when the gap or the data is insufficient.
- Tracking
Every prediction is timestamped, stored, traceable. You verify our results yourself.
How we write
Analyses and articles are written with the help of artificial-intelligence tools, then checked by automated controls. Predictions are informational and do not guarantee any result.
Responsible gambling
We don't push you to bet more. We push you to bet better. That's a fundamental difference.
Sports betting carries risks
Debt, isolation, addiction. If you feel betting is no longer a pleasure but a necessity, talk about it. Help is free and confidential.
Joueurs Info Service · 09 74 75 13 13The public board stays open
Read the guide, check the ledger. No promise of profit — only a method and published results.