Contact Support | HiYesNo Help Center
Official support: support@hiyesno.com. Include account ID, market link, transaction hash, or screenshots.
Prediction Academy
- How to Read YES/NO Probability in Prediction Markets
- What Is a Forecast Market?
- Prediction Markets vs Polls: What Is Different?
- What Is a Prediction Market? From Event Probability to YES/NO Trading
- What Is a Prediction Market? How to Read Event Probabilities
- How Event Contract Data Sources Are Chosen
- What Is Liquidity in Prediction Markets?
- What Is the UMA Oracle? How HiYesNo Uses It to Settle Markets
- HiYesNo Fees: 1.5% Applies Only to Profit
- How to Read Market Prices: A Beginner Guide
Case Studies
- Election Prediction: Polls, Market Prices, and Settlement
- Will Portugal advance past Spain at the 2026 World Cup?: Advancement Path, Key Factors, and Market Notes
- Will Argentina advance past Egypt at the 2026 World Cup?: Advancement Path, Key Factors, and Market Notes
- What will be the result of Portugal vs Spain at the 2026 World Cup?: How to Read Factors in a Result Market
- Will Mexico advance past England in the 2026 FIFA World Cup knockout stage?: Advancement Path, Key Factors, and Market Notes
- Will Brazil advance past Norway in the 2026 FIFA World Cup knockout stage?: Advancement Path, Key Factors, and Market Notes
- Will United States advance past Belgium in the 2026 FIFA World Cup knockout stage?: Advancement Path, Key Factors, and Market Notes
- What will be the result of Switzerland vs Colombia at the 2026 FIFA World Cup?: How to Read Factors in a Result Market
- What will be the result of Xuzhou vs Nantong in the 2026 Jiangsu Football City League?: Local Football Result Market Notes
- Wimbledon Match Market Watch: Draw, Grass, and Key Factors
Trading Strategies
- How to Set Position Limits for Long-Term Events
- Position Size and Probability: Risk Basics for Beginners
- What Do Market Status Labels Mean?
- Why Rule Update Records Matter
- What Is Slippage and Why Does It Affect Execution?
- What to Do If You Question a Market Resolution
- Why Settlement Rules Matter Before Trading
- How to Check Market Resolution Sources
- When Does a Prediction Market Resolve?
- How market resolution works: sources and process
Help Center
- Wallet Login Not Working? Checklist
- Account Checklist Before Major Sports Events
- How to Keep Sports Market Order Records
- What to Check After HiYesNo Login
- What to Include in a HiYesNo Support Request
- Account and Login
- Deposit USDT
- Trade and Sell
- Contact Support
- Rules for Discussing World Cup Event Guides