How our AI prediction system works

PRONOS.CLUB's AI tipster is built on Claude Sonnet (Anthropic), one of the most advanced language models available today. It plays the role of a sports expert: it analyzes enriched data, identifies value opportunities, and writes a reasoned justification for each pick it selects.

A second AI model (OpenAI's GPT-4o) plays the devil's advocate: it reviews each pick and vetoes those containing serious factual errors, odds hallucinations, or inconsistent arguments. This double-check is integrated into the pipeline before publication.

Result: 0 to 12 predictions per day spread across 2 drops, each accompanied by a complete 13-section analysis with advanced sport-specific stats.

• 1
  Morning drop — multi-sport collection (8:45 AM Paris)

  The system queries multiple APIs to retrieve matches kicking off before 8:00 PM Paris time: real-time odds from 4 bookmakers (PS3838, Winamax, Betclic, Unibet), recent form and home/away splits via API-Football, enriched tennis stats via Matchstat Pro, basketball/hockey/baseball/MMA/rugby/handball/F1 data via API-Sports. Total: ~120 fixtures analyzed per drop.
• 2
  Claude Sonnet analysis (AI tipster)

  Claude receives the enriched data and applies strict rules: minimum 2 concrete arguments per pick, minimum odds 1.50 (single), mandatory tier, flat 1U stake. It generates 0 to 8 picks at the morning drop based on actual opportunities. If no pick is worth publishing, it publishes 0 — never to fill a quota.
• 3
  GPT-4o validation (devil's advocate)

  GPT-4o reviews each pick with a critical eye. It automatically vetoes: any odds below 1.50 (single) or 1.30 per selection (parlay), any spread above 30% between ARJEL and non-ARJEL odds (sign of hallucination), and any invented factual argument. It can also suggest a tier downgrade if the pick is weaker than claimed.
• 4
  Telegram + X publication + detailed analysis

  Validated picks are published on the public Telegram channel @pronos_club_ia with a direct link to the full analysis. Lock and Strong tier picks are also automatically posted on X. For each pick, a 13-section detailed analysis is generated and put online (form, splits, injuries, top scorers, track records, etc.).
• 5
  Evening drop — second batch (5:30 PM Paris)

  A second pipeline runs in late afternoon for matches kicking off from 8:00 PM Paris: top European fixtures, NBA/NHL/MLB US night games, MMA cards, F1. Advantage: probable lineups are confirmed by this time → better data quality. Cap: 4 picks max at the evening drop.
• 6
  Closing Line Value capture (every 15 minutes)

  For each published pick, a cron runs every 15 minutes during the 3 hours before kickoff to capture the final Pinnacle no-vig odds. This is called Closing Line Value (CLV). Odds taken better than the final efficient market = real edge measured objectively.
• 7
  Automatic resolution + public report

  The next day, a cron resolves picks (won / lost / void) by querying sports APIs. The daily report is calculated and displayed publicly. Every Sunday at 10 PM, a complete weekly report is published with ROI, cumulative profit, performance by tier and sport, and average CLV.

For each pick, the system calculates the "fair" odds by removing the vig from Pinnacle odds (the market reference bookmaker). If we find a soft book paying better than this fair odds, we have a mathematical edge: over time, this pick generates value even if individually it can lose.

The Closing Line Value (CLV) measures this same gap when the market closes — that is, when the sharps have done their work and the odds reflect the "true" probability. A positive average CLV over 100+ picks = real and durable AI edge.

The CLV of each resolved pick is publicly displayed. No cherry-picking, no doctored numbers.

⚠️ 1 parlay maximum per day, never 2. Distributed either at the morning drop or the evening drop.

Each pick is published with its odds, bookmaker, and tier on Telegram and X at the time of generation. Lock and Strong picks are also automatically posted on the PRONOS.CLUB X account. Publication links are timestamped and tracked.

Cumulative ROI, win rate, profit in units, and average CLV are publicly displayed and automatically updated after each resolution. A detailed weekly report is published every Sunday at 10 PM Paris with bankroll graphs, W/L/V breakdown, ROI by tier, and performance by sport.

✓ No pick is ever deleted after publication. If a pick loses, it remains accounted for in the public stats.

The 4 monitored bookmakers are: PS3838 (aka Pinnacle, best market payout rates, non-ARJEL), Winamax, Betclic and Unibet (all three ARJEL-licensed in France). For each pick, the system displays the best ARJEL odds (Winamax / Betclic / Unibet) and the best non-ARJEL odds (PS3838), so each user can play at their preferred book.

The odds recorded in public statistics are always the best of the two — ARJEL or non-ARJEL — reflecting the actual performance achievable by a user with PS3838 access.

PS3838 offers the best market odds but is not accessible to everyone. If you don't have a PS3838 account, use the displayed ARJEL odds.

Our economic model is based on two pillars: affiliation with partner bookmakers (Winamax, Betclic, Unibet, PS3838) and the premium tipster service led by Jérôme Bollaert, a recognized human tipster, accessible by subscription. AI Predictions are our acquisition channel: we publicly demonstrate the rigor of the system, and those who want to go further can subscribe to the tipster offer.

This approach allows us to never have to "sell" the AI. We make it available, performant or not — the transparency of public stats does its work.

• •The AI does not guarantee any profit. Sports betting is by nature random and even the best human tipsters lose regularly.
• •The AI doesn't know real-time news (injury announced 1 hour before the match, last-minute lineup change after the drop). It works with the data available at drop time.
• •The AI doesn't bet with your money. It suggests — you decide. Always consult a professional before committing significant amounts.
• •The displayed odds are those at drop time. They may evolve before kickoff. Always check the actual odds on your bookmaker before betting.
• •The AI can be wrong. It has biases, blind spots, and statistical limitations. Its reasoning is visible in each analysis — read it before following a pick.
• •On certain sports (tennis, MMA, F1), data may be incomplete or delayed. The AI's confidence is automatically calibrated lower on these sports when data is limited.