Andrucci Strategy – Rules, Theory & Tips

What Is the Andrucci Betting System

The Andrucci system is a roulette strategy based on the idea that certain numbers on the roulette wheel tend to appear more frequently over time. Unlike random betting, it involves a structured observation phase where you track outcomes for many spins before wagering.

This concept comes from a combination of probability theory and wheel bias analysis. The assumption is simple: due to mechanical imperfections or dealer habits, some numbers may hit more often than others. Once identified, these numbers become your betting targets.

Key features of the Andrucci system 👇

• Observation first – collect data from 100–200 spins before placing any bets.
• Targeted betting – focus only on the most frequently appearing 8–10 numbers.
• Fixed stake approach – consistent bet amounts to manage risk.
• Works in both land-based and online roulette games.

💡 In a typical casino setting, the system works best when you can clearly record past results, such as on a scoreboard or live dealer stream.

Identifying “Hot Numbers” Based on Frequency

After collecting results, review your list and count how many times each number appeared. The Andrucci system suggests focusing on numbers that hit more often than probability predicts.

📊 Spin Tracking Results

👉 Numbers with the highest positive difference are your “hot numbers.”

Placing Bets on Selected Numbers

Once hot numbers are identified, place equal bets on each of them. For example, if you select 8 numbers, you might place 1 unit on each per spin. This creates multiple opportunities for a 35:1 payout in French or European roulette.

Betting on multiple numbers increases hit chances but requires a larger bankroll to withstand dry streaks.

Recommended Duration for Betting Phase

The betting phase usually lasts for 30–37 spins — roughly the time it takes for each wheel number to have one statistical chance of appearing. After this, stop and repeat the observation process to refresh your hot number list.

Step-by-Step Example of the Andrucci Strategy

This walkthrough will show exactly how to apply the Andrucci betting system from start to finish. The process involves disciplined tracking, number selection, and consistent betting over several spins. 👇

Recording Spins and Creating a Number List

Begin by watching at least 150 spins without betting. Use a simple table to keep track of results. This could be in a notebook, spreadsheet, or even a printed scorecard.

📊 Example Spin Recording Table

💡 Keeping an accurate count helps you avoid relying on memory, which is prone to bias.

Selecting 8–10 Numbers With Highest Frequency

After counting, rank all numbers by how many times they appeared. Select the top 8–10 numbers for betting. In American roulette (with 38 pockets), you can still use 8–10 hot numbers, but keep in mind the slightly higher house edge.

Applying Consistent Bets Over Multiple Spins

Once you have your hot numbers, place the same bet on each number for around 30–37 spins. For example 👉

• Bankroll: 200 units
• Bet per number: 1 unit per spin
• Numbers covered: 8 hot numbers
• Total bet per spin: 8 units

If one of your numbers hits, you get a payout of 35:1 (European/French) or 35:1 (American), minus the bets on losing numbers that round.

💡 Tip: If none of your numbers hit within the planned spins, stop and restart the observation phase. This prevents chasing losses indefinitely.

Pros and Cons of the Andrucci System

Like any roulette approach, the Andrucci betting system has strengths and weaknesses. Knowing both will help you decide when and how to apply it effectively 👇

📊 Comparison Table: Pros & Cons

Pros

• Can be effective in exploiting wheel bias – If a roulette wheel has mechanical imperfections or dealer patterns, the Andrucci roulette system can capitalize on them.
• Simple betting structure after data collection – Once the observation is done, the betting phase is straightforward.
• Focuses on specific numbers for higher payouts – By narrowing your bets to 8–10 numbers, you increase potential winnings per hit.

Cons

• Requires long observation period – Tracking 100–200 spins before betting demands patience.
• Ineffective on perfectly balanced wheels – In well-maintained casinos and most online RNG games, there may be no exploitable bias.
• No guarantee of success – Roulette remains a game of chance, and the Andrucci system can still produce losses.

Best Conditions to Use the Andrucci System

The Andrucci betting system works best in environments where you can track outcomes accurately and detect patterns over time. Choosing the right game format and conditions can make a noticeable difference 👇

Live Dealer Roulette vs RNG (Random Number Generator)

• Live Dealer Roulette – Offers the best conditions for the Andrucci roulette system, especially in physical casinos or live-streamed online tables. You can observe spins in real time, note dealer habits, and spot possible wheel biases.
• RNG Roulette – Uses computer algorithms to generate outcomes. These are designed to be perfectly random, making wheel bias detection nearly impossible. The system can still be applied, but expect results closer to pure probability.
  
   

Single-Zero European Roulette for Lower House Edge

When possible, choose European or French roulette over American. The single-zero format reduces the house edge from 5.26% to 2.70%, giving you slightly better long-term roulette odds.

📊 House Edge Comparison Table

When to Abandon Selected Numbers

If your chosen hot numbers fail to hit within the planned 30–37 betting spins, it’s best to stop and return to the observation phase. This prevents chasing losses and ensures your number list stays fresh based on recent results.

💡 Pro Tip: In live games, dealer changes or wheel replacements are a good reason to reset your tracking entirely.

Andrucci vs Other Roulette Strategies

The Andrucci betting system is often compared to other well-known roulette approaches. Each has a unique philosophy, risk level, and bankroll requirement.

📊 Andrucci vs Other Strategies

Andrucci vs Martingale

• Andrucci system targets specific numbers with the potential for high payouts, but results depend on pattern detection.
• Martingale focuses on even-money bets and recovers losses quickly, but can drain a bankroll fast during long losing streaks.

Andrucci vs James Bond Strategy

• James Bond covers multiple number ranges in one spin, aiming for frequent small wins.
• Andrucci betting system focuses on fewer numbers but aims for larger single-hit payouts.

Andrucci vs Fibonacci

• Fibonacci uses a mathematical sequence to adjust bet sizes gradually, reducing risk compared to Martingale.
• Andrucci roulette system keeps bet sizes fixed, concentrating risk on specific numbers instead of progression betting.

Tips for Applying the Andrucci Method Successfully

Applying the Andrucci betting system requires more than just number tracking. Good habits and discipline can significantly improve your chances of success 👇

Track Spins Accurately (Minimum 100–200)

• Keep precise records of every spin during the observation phase.
• Use a spreadsheet or paper scorecard to avoid relying on memory.
• The larger your sample size, the more reliable your “hot number” list will be.

Avoid Over-Betting During Losing Streaks

• Even with the Andrucci system, you can face multiple spins without a hit.
• Stick to your original stake size to protect your bankroll.
• Avoid increasing bet sizes impulsively — this turns the method into a progression system, which it isn’t.

Use Proper Bankroll Management

• Decide your maximum loss limit before starting.
• Divide your bankroll into observation and betting phases.
• For example, if you have 200 units, allocate 50 units for tracking and 150 units for betting.

💡 Pro Tip: If your bankroll drops below the level needed to cover your chosen numbers for the full betting phase, stop and reassess.