Arbitrage#143

Block-Confirmation Race for On-Chain-Resolved Markets

For markets that settle on a verifiable on-chain event, a contract balance crossing a level, a governance vote passing, a block-height or halving milestone, watch the mempool and pending chain state so you can trade the near-certain outcome before the confirming block is mined and the market reprices. The edge is reading pending blockchain state a few seconds ahead of confirmation.

What you need to run it

Mempool + pending-state node access on the relevant chain(s)
Decoder mapping target contract events to market resolution
Fast Polymarket order submission keyed to pending-tx detection
Reorg-risk guard sizing for non-finalized states

Where this applies

Markets on Polymarket where block-confirmation race for on-chain-resolved markets is the natural play:

Will a major DeFi protocol's pending governance proposal pass before its voting deadline?
Will a tracked whale wallet's stablecoin balance cross $10M before the end of 2027?
Will Ethereum's next scheduled network upgrade activate before the end of 2027?

Capabilities this demands

On-chain / walletLow latencyCustom code / APIRisk management

At a glance

CategoryArbitrage

Requirements4

CapabilitiesOn-chain / wallet, Low latency, Custom code / API, Risk management

VenuePolymarket (CLOB, Polygon)

Build it

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This is documentation, not advice. Poly Research & Robotics publishes how these strategies work because the method should be checkable — not as a recommendation to trade them. See the full strategy database (297 strategies) or the data feeds directory.