> ## Documentation Index
> Fetch the complete documentation index at: https://docs.horse.fun/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Welcome to horse.fun - A verifiable on-chain pari-mutuel racing protocol

## What is horse.fun?

horse.fun is a decentralized horse racing protocol built on Solana that combines provably fair randomness, sustainable tokenomics, and high-frequency on-chain execution to create an engaging and transparent racing experience.

<img src="https://mintcdn.com/horsefun/6mQofQyufC13v-13/images/hero-dark.webp?fit=max&auto=format&n=6mQofQyufC13v-13&q=85&s=fd31c1b30ca09a4691172cb731611ca5" alt="horse.fun — on-chain horse racing" width="1536" height="640" data-path="images/hero-dark.webp" />

## Key Features

<CardGroup cols={2}>
  <Card title="Provably Fair" icon="shield-check" iconType="duotone">
    Verifiable randomness via Switchboard VRF ensures fair and transparent race outcomes
  </Card>

  <Card title="High Frequency" icon="bolt" iconType="duotone">
    576 races per day with 2.5-minute cycles — constant availability
  </Card>

  <Card title="Pari-Mutuel Pooling" icon="coins" iconType="duotone">
    Self-balancing pool system where players compete against each other, never against the protocol
  </Card>

  <Card title="Progressive Jackpots" icon="trophy" iconType="duotone">
    Dual jackpot system — Blazing Hoof (Normal, 1/125) and King's Run (Super, 1/12500)
  </Card>
</CardGroup>

## Why Solana?

The protocol operates natively on Solana for several critical advantages:

* **High Throughput**: Handle 576 races per day without congestion
* **Low Transaction Costs**: Keep entries accessible and economical
* **Deterministic Execution**: Ensure fair and predictable race resolution
* **Fast Finality**: Quick race cycles and verifiable results

## The Problem We Solve

Centralized online gaming platforms suffer from critical limitations:

<AccordionGroup>
  <Accordion title="Opacity" icon="eye-slash">
    Race outcomes and payout calculations cannot be verified by players
  </Accordion>

  <Accordion title="Centralization" icon="building">
    Players must trust operators with both funds and fairness
  </Accordion>

  <Accordion title="Value Extraction" icon="money-bill-trend-up">
    Profits flow to centralized entities rather than participants
  </Accordion>

  <Accordion title="Low Frequency" icon="clock">
    Scheduled, infrequent events mean long waits between races
  </Accordion>
</AccordionGroup>

## Our Solution

horse.fun addresses these challenges through:

* ✅ **Cryptographic Guarantees**: VRF-based randomness that cannot be manipulated
* ✅ **Transparent Execution**: All race outcomes and payouts verifiable on-chain
* ✅ **Player-Aligned Economics**: HORSE token system that benefits active participants
* ✅ **Continuous Operation**: 24/7 racing with no downtime or scheduling limitations

<Card title="Ready to start?" icon="flag-checkered" href="/introduction/quick-start">
  Learn how to submit your first entry in minutes
</Card>

## Protocol Fundamentals

Each race involves:

* **9 horses** with dynamically assigned probabilities
* **4 track types** offering different risk profiles
* **3 prize tiers** (1st, 2nd, 3rd place)
* **90% direct prizes** + 4% progressive jackpots + 1% HORSE buyback-and-burn
* **Volume-linked HORSE emission** distributed to all players each race

<Note>
  All race outcomes, payouts, and token distributions are fully verifiable on-chain, ensuring complete transparency and trustless operation.
</Note>