Markets pay 2x
Parlays pay 1000x

Same predictions, one position, exponential payout. The parlay primitive for Solana.

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The Problem

Prediction markets are single-outcome only

Want to bet on “Lakers win AND BTC > $150K AND ETH flips SOL”? Today you need 3 separate bets on 3 separate platforms. Parlays are the most popular product in traditional sports betting — a $150B+ market — but they don’t exist on-chain.

Fragmented Liquidity

Billions locked in isolated binary markets with no composability between them.

No Combined Bets

Bettors can’t stack predictions for multiplied odds. Each market is a silo.

No LP Edge Product

LPs have no way to earn from the structural advantage that parlays give to the house side.

How It Works

Build your parlay in 3 steps

Pick your outcomes

Choose 2 to 20 predictions from any supported market — sports, crypto, politics, anything.

Odds multiply automatically

Our contracts calculate combined odds on-chain. A 3-leg parlay at 2x each = 8x payout.

One bet, one payout

Place your parlay in a single transaction. If all legs hit, you collect. Settled via existing oracles.

For Bettors

2.4x to 1,000x odds.
One transaction.

Combine any predictions into a single on-chain parlay. The more legs you add, the higher your multiplier. No bookmaker taking a cut. No KYC wall. Just you, the contract, and the odds.

2-20

Legs per parlay

1,000x

Max multiplier

Low

Platform fees

Live Parlay3 legs

🏀Lakers win vs Celtics

2.1x

₿BTC > $150K by Dec

1.8x

◆ETH flips SOL mcap

3.2x

Combined payout0.0x

1 transaction. 1 payout.

Bettor win rateat 50/50 odds per leg

3-leg parlay12.5%

5-leg parlay3.1%

10-leg parlay0.1%

In a 5-leg parlay, bettors win just

3 out of 100

LPs keep the other 97

For Liquidity Providers

Be the house.
Math is on your side.

Deposit USDC into our bin-based liquidity book (inspired by Trader Joe v2). Every losing parlay pays LPs automatically. In a 5-leg parlay at even odds, bettors have a ~3% win rate. Share-based accounting means zero active management.

Passive yield from every losing parlay

Bin-based liquidity book for capital efficiency

Automatic profit distribution via share accounting

No impermanent loss — single-asset (USDC) deposits

Architecture

Plugs into existing infrastructure

We piggyback existing resolution infrastructure from Polymarket and Azuro — no oracle costs. predictumX is the execution layer, not another prediction market.

Resolution Layer

Polymarket

Binary market resolution

Azuro

Sports outcome feeds

Roadmap

Now

Colosseum Hackathon — Solana parlay MVP

Cross-chain parlays — EVM + Solana

Future

Permissionless layer — one shared liquidity book

Team

Built by builders

Federico

Co-founder

@fililoco

Sebastian