Exchange infrastructure for prediction markets

Prediction market infrastructure without a house.

Parlay Social builds the exchange layer for peer-to-peer prediction markets: pricing, matching, escrow and on-chain settlement, packaged so an operator can launch a market in their own vertical without building an exchange.

Talk to us about licensing See it live: Social Parlay
  • Model
    Peer-to-peer exchange
  • Pricing
    1–99¢, implied probability
  • Settlement
    USDC on Solana
  • Reference deployment
    Social Parlay, golf

The stack

What the operator owns, what Parlay Social provides, and where funds settle.

01 · operator

Operator front-end

Your brand, audience and licensing.

Web and appMarket pages, portfolios
AccountsOnboarding, KYC
ComplianceGeofencing, limits
CommunityYour members and data
02 · engine

Arcline Engine

Every market, from creation to result.

Market creationTyped markets, full fields
PricingZero-liquidity AMM, 1–99¢
PositionsWhole shares, AMM + limit book
ResolutionData feeds, voids, refunds
03 · settlement

Solana settlement in USDC

Funds escrowed and paid out on-chain.

Program-derived escrowOne vault per outcome pool
Pro-rata payoutWinners share the pool
Public recordEvery trade and payout on-chain

Platform

The Arcline Engine, from market creation to payout.

Everything below runs today in the reference deployment on Solana devnet, except items marked roadmap.

Live on devnet running in the reference deployment Roadmap not yet available

Market engine

A zero-liquidity automated market maker. Price moves along a curve as positions are taken, so a market can open without a seeded book or a market maker.

  • Cents-as-probability pricing from 1¢ to 99¢. Every new market opens at 50¢.
  • Whole-share position units, with balances held to micro-USDC precision.
  • Binary and multi-outcome markets, from head-to-head to a full tournament field of up to 200 outcomes.
  • Early-liquidity bonus curve: early positions receive bonus shares on a declining curve until a pool reaches its liquidity threshold.
  • Hybrid execution across the AMM and an on-chain limit order book.

Settlement and custody

Funds are held in on-chain escrow from the moment a position is taken until the market settles.

  • Positions escrowed in program-derived accounts on Solana, with one vault per outcome pool.
  • Settled in USDC. Winning positions share the pool pro rata, net of a settlement fee, and payouts can never exceed deposits.
  • Pools that never reach their liquidity threshold, and voided markets, refund in full.
  • Custodial wallets: the platform signs on users' behalf and discloses that it does. Every trade and payout is recorded on a public ledger.
  • Solana confirmation in seconds, at network fees of a fraction of a cent per transaction.

Market lifecycle

Markets are created, resolved and closed out by the engine, with an audit trail at each step.

  • Market creation from typed configurations: outright winner, top 5, 10 and 20, playoff, three-ball and head-to-head.
  • Resolution from licensed sports-data feeds, submitted on-chain by the settlement authority.
  • Automatic refunds for cancelled events, no-contest outcomes and under-threshold pools. Tie rules are defined per market type.
  • Split-order neutral: the bonus curve is path-independent, so splitting an order gains nothing. Per-user rate limits.
  • Operator-defined market templates for any vertical Roadmap
  • Dead-heat rules, trading circuit breakers and time-weighted position tracking Roadmap

Operator tooling

The tools used to run the reference deployment, and the path to packaging them for operators.

  • Admin console for market operations, analytics, reconciliation and wallet balances.
  • Read-only data API for market participants and leaderboards.
  • Social layer, configurable per deployment: follows, copy trading, market comments, leaderboards, referrals and share links.
  • Full operator API and white-label front-end components Roadmap
  • Risk dashboards Roadmap
  • Groups, shared positions and invites Roadmap

How it works

Three steps from market to settlement.

Nobody holds the other side of the market. Participants trade against a pricing curve, and the pool they fund is what settles.

  1. Define

    The operator defines a market from a template.

    The operator sets the event, the outcomes, the result source and the close time. The engine opens one pool per outcome, each with its own on-chain vault.

  2. Trade

    Users take positions priced in cents.

    Each trade moves the price along the curve and escrows the USDC on-chain. The price is the market's implied probability at that moment.

  3. Settle

    A verified result triggers settlement.

    Winning positions share the pool pro rata. The settlement program pays them directly from escrow, with no intermediary.

Worked example

One binary pool: “Player finishes in the top 10”

An illustrative sequence of three trades. Figures are rounded and bonus shares are left out for clarity.

Pool ledger
StepActionYES priceEffect
open—50¢Pool opens with no seeded liquidity.
T1A: 40 YES50→58¢Buying YES pushes the price up.
T2B: 25 NO58→53¢Buying NO pushes it back down.
T3C: 60 YES53→64¢Market now implies 64%.
resultYES—Result arrives from the data feed.
settle100 YES—A holds 40 of 100 winning shares and receives 40% of the net pool. C receives 60%. B's deposit stays in the pool.

Σ payouts + settlement fee ≤ Σ deposits

The price is what a share costs when it is traded. It is not a fixed payout per share: at settlement, winners share the pool in proportion to the shares they hold.

Deployments

A live reference deployment.

Every part of the Arcline Engine is proven in our own exchange before it is offered to licensees.

Reference deployment Live on devnet

Social Parlay

A golf-native prediction exchange covering professional tournaments: outright winner, top-finish and matchup markets across full fields, priced in cents and settled in USDC. It runs the complete Parlay Social stack.

Vertical
Professional golf
Network
Solana devnet, closed access
Status as of
September 2026
Mainnet
After independent security audit
socialparlay.com

Licensing

License the exchange layer.

Operators bring the audience and the vertical. Parlay Social provides the Arcline Engine and settlement underneath, so an operator can launch prediction markets without building an exchange.

Who it is for

  • Sports leagues and governing bodies
  • Media and publishing groups
  • Fantasy and gaming platforms
  • Exchanges adding a prediction-market product
  • Regulated and offshore operators alike

What you get

  • The Arcline Engine: market creation, pricing, positions and resolution
  • On-chain escrow and settlement in USDC
  • Admin console and data API
  • Integration support from the team that runs the reference deployment

What you bring

  • Your audience and brand
  • Vertical data and result sources
  • Your own licensing, KYC and compliance in the jurisdictions you serve

Engagement models

Scope, integration work and commercial terms are agreed per engagement.

01 · white-label

White-label

A complete exchange under your brand, run on the reference stack. The front-end is tailored for each engagement until packaged components are ready.

02 · api

API integration

Your front-end, our engine and settlement. The operator API is in development. We scope integrations now with the teams building on it first.

03 · embedded

Embedded

Prediction markets inside a product you already run, such as a fantasy app, media property or exchange, with pricing and settlement handled underneath.

Tell us about your audience, your vertical and the jurisdictions you operate in, and we will come back with a proposed integration path.

Talk to us about licensing

Company

Built in Vancouver since 2020.

Parlay Social Inc. was founded in December 2020 in Vancouver as a social-first golf company, built on the idea that the people who follow the game know it well enough to price it.

Starting in 2024 the company rebuilt its product as a peer-to-peer prediction market on Solana. Participants set prices, funds are held in on-chain escrow and markets settle in USDC. The operator takes no position in any market. That exchange, Social Parlay, now serves as the reference deployment while the company packages the engine beneath it, the Arcline Engine, for operators in other verticals.

  1. Dec 2020

    Founded in Vancouver as a social-first golf company.

  2. 2020

    First social golf app ships to about 200 early users, and is later retired.

  3. 2024

    Product rebuilt as a peer-to-peer exchange.

  4. 2025–26

    Market engine and settlement programs built on Solana.

  5. Apr 2026

    Social Parlay goes live on Solana devnet with a closed group.

  6. 2026

    Arcline Engine productised for licensees in other verticals.

  7. Planned · 2027 H1

    Independent security audit, then mainnet.

Team

Trading systems, Solana infrastructure, finance and golf.

Colin Masters

Co-founder and CEO

Seven years on algorithmic trading and market-data systems at JPMorgan, Deutsche Bank and Barclays. British Army veteran.

Jason Lee

Co-founder and CTO

Formerly senior engineer at Triton One, a Tier-1 Solana RPC provider, and principal engineer at One Medical.

Kris Dahl

Chief Financial Officer

Former TD Bank executive, with a background in financial operations and compliance.

Chris Gillard

Sales and Marketing

Golf industry relationships and go-to-market.

Jared Clark

Operations

Engineering and architecture, research and consulting, and Amazon DSP operations.

Engineers who have built trading, matching or settlement systems: [careers@socialparlay.com]

Contact

Talk to us.

Please use the address that matches your enquiry.

Licensing

Operators, leagues, media and platforms interested in the Arcline Engine.

[licensing@socialparlay.com]

Investors

Financing, diligence and data room access.

[investors@socialparlay.com] investors.socialparlay.com

Press

Interviews, statements and brand assets.

[press@socialparlay.com]

General enquiries: hello@socialparlay.com · Vancouver, British Columbia