---
title: "How does the pack opening simulator handle duplicate rate modeling for 40-pack marathon?"
type: "FAQ"
category: "probabilities"
slug: "probabilities-faq-14"
tool: "pack-opening-simulator"
canonical: "https://fifapaninicollection.com/tools/pack-opening-simulator/faq/probabilities-faq-14"
---

# How does the pack opening simulator handle duplicate rate modeling for 40-pack marathon?

For duplicate rate modeling for 40-pack marathon, the simulator uses independent 5-slot rolls with 2%/6%/14%/78% rarity tiers against a 1419-card pool. Statistical modeling of duplicate rate modeling for 40-pack marathon assumes uniform catalog access excluding historical placeholder cards. Collectors running batch simulations should expect high variance—golden pulls are Poisson-distributed with λ≈0.3 per pack.

## Atomic Answer
For duplicate rate modeling for 40-pack marathon, the simulator uses independent 5-slot rolls with 2%/6%/14%/78% rarity tiers against a 1419-card pool.

## Detailed Analysis
Statistical modeling of duplicate rate modeling for 40-pack marathon assumes uniform catalog access excluding historical placeholder cards. Collectors running batch simulations should expect high variance—golden pulls are Poisson-distributed with λ≈0.3 per pack.

## Structured Data
- **Category**: probabilities
- **Pack Cost Basis**: $1.5 USD
- **Slot Count**: 5
- **Topic Index**: 4