Weighted Raffle
Give each participant a different chance to win. Perfect for raffles and prize draws.
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How It Works
1
Add Participants & Weights
Add participant names and assign each a weight (ticket count) — higher weight means higher chance of winning
2
Draw Weighted Winner
Press Draw Winner and watch as the weighted random algorithm selects a winner based on ticket weights
3
See Weighted Result
The winner is shown with their weight and winning probability, with a celebratory animation
Popular Use Cases
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Classroom Activities
Teachers use this for fair student selection, group assignments, and participation tracking.
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Giveaways & Contests
Perfect for Instagram, YouTube, and social media prize draws with verifiable results.
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Games & Entertainment
Add excitement to game nights, board games, and virtual gatherings.
Weighted Raffle: Frequently Asked Questions
What is a weighted raffle?
A weighted raffle allows each participant to have a different probability of winning. Instead of equal chances, each person can be assigned a 'weight' (like a ticket count). Someone with weight 3 has 3 times the chance of winning as someone with weight 1.
How do I set different weights for participants?
In the Table view, use the +/- buttons next to each name to adjust their weight from 1 to 100. In Bulk view, enter names as 'name|weight' on each line — for example: 'John|3' gives John weight 3.
What's the difference between this and a regular raffle?
A regular raffle gives every participant an equal chance. A weighted raffle lets you assign different 'ticket counts' to each person. This is ideal for events where some attendees deserve more chances — like VIP guests, staff members, or premium ticket holders.
Can I still use AI to fill the list?
Yes! The AI Fill feature adds participants with weight 1. You can then adjust individual weights in the Table view after AI generates the list.
How many participants can I add?
You can add as many participants as you want. The total ticket count (sum of all weights) is displayed at the top of the control panel. The algorithm handles weighted random selection efficiently for thousands of entries.
Can I share the winner result?
Yes! After drawing a winner, the Share Result button copies a formatted message that includes the winner's name, their weight, and their calculated winning probability percentage.
How does the remove winner feature work?
When 'Remove Winner from List' is checked, the winning participant is removed from the pool after each draw. Their weight is also removed from the total ticket count for subsequent draws.
Is the weighted selection truly random?
Yes! We use the Web Crypto API for cryptographically secure random number generation. The weighted algorithm picks a random number between 0 and the total weight, then traverses entries cumulatively — this is mathematically proven to produce correct weighted probabilities.
What are common use cases for weighted raffles?
Weighted raffles are popular for corporate events (employees with tenure get more chances), VIP guest lists (premium tickets = more weight), fundraising (donors who gave more get more chances), and any scenario where fair doesn't mean 'equal.'
Can I use this for regulated lotteries or gambling?
This tool is designed for casual, fun raffles and is not certified for regulated gambling or legal lottery purposes. For official draws requiring certified randomness, consult local regulations.