Odds and payouts
Every market on 4rho has the same underlying math — only the display format changes.
What you actually pay and win
Every YES or NO token pays exactly $1 if its side wins and $0 if it doesn't. The price you pay is anywhere between $0.01 and $0.99.
Your payout if you win = your stake ÷ price. So a YES bought at $0.40 returns $1 / $0.40 = $2.50 per dollar staked. If your side loses, the shares are worth $0.
Display formats
You can pick how 4rho shows odds in Settings → Odds format:
| Format | What 50¢ looks like | What -108 looks like |
|---|---|---|
| Cents (default) | 50¢ | 52¢ |
| Percentage | 50% | 52% |
| American | +100 | -108 |
| Decimal | 2.00 | 1.92 |
Pick whichever you're used to. The math underneath is identical.
American odds quick reference
If you're used to sports books, here's the same probability in a few notations. The conversion is exact — just three different ways to write the same number.
| Probability | American | Decimal | Cents |
|---|---|---|---|
| 15% | +567 | 6.67 | 15¢ |
| 28% | +257 | 3.57 | 28¢ |
| 42% | +138 | 2.38 | 42¢ |
| 48% | +108 | 2.08 | 48¢ |
| 52% | -108 | 1.92 | 52¢ |
| 64% | -178 | 1.56 | 64¢ |
| 78% | -355 | 1.28 | 78¢ |
| 85% | -567 | 1.18 | 85¢ |
The American convention: negative numbers (e.g., -108) are favorites — bet the absolute value to win $100. Positive numbers (e.g., +245) are underdogs — bet $100 to win that amount.
Why prices change
Order books move as people trade. If a flood of YES buyers comes in, the YES price rises and the NO price falls. The two always sum to about $1, give or take a few cents of bid-ask spread.
A market with no liquidity won't show a price at all — it shows RFQ instead.
What about the labels (ML, SPR, O/U)?
Sports markets often have several flavours per game:
- ML — moneyline (will the team win, ignoring the spread).
- SPR — spread (will the team cover the spread).
- O/U — over/under on the total (combined score over the line).
The label tells you what the market is asking. The price tells you what the market thinks.