Building on Base · Coming Soon

Stack predictions.
Multiply odds.

The first on-chain parlay protocol. Combine any 2–20 prediction market outcomes into a single bet with multiplied odds — no bookmaker, no KYC.

On-chain

No KYC

2–20 legs

Parlay Slip3 legs

🏀Lakers win vs Celtics

2.1x

₿BTC > $150K

1.8x

◆ETH flips SOL mcap

3.2x

Combined odds12.1x

1 transaction. 1 payout.

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

Platform fees

Parlay Slip3 legs

🏀Lakers win vs Celtics

2.1x

₿BTC > $150K

1.8x

◆ETH flips SOL mcap

3.2x

Combined odds12.1x

1 transaction. 1 payout.

Liquidity BookUSDC

Bin 1

Bin 2

Bin 3

Bin 4

Bin 5

Bin 6

Bin 7

5-leg parlay win rate

~3.1%

LP edge

~96.9%

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

Best on-chain parlay on Base

Cross-chain parlays (Solana)

Future

Permissionless layer — one shared liquidity book

Team

Built by builders

Federico

Co-founder

@fililoco

Sebastian