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PredictIt NYC Mayor vs Polymarket: what traders need

If you searched for "predictit nyc mayor" you likely want market coverage and how it compares to Polymarket. PredictIt is a US-focused, CFTC-regulated prediction market that often lists political events like NYC mayor races. Polymarket runs on Polygon and lists similar markets for global traders. For arbitrageurs, PolyArb (our bot) finds intra-Polymarket edges and offers a $7.62 minimum guaranteed edge per trade, 40ms latency, and Telegram + Discord alerts.

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What PredictIt is and how it differs

PredictIt is a US-facing prediction market with specific regulatory constraints; it historically lists political contracts like NYC mayoral races. Its user base and product rules differ from Polymarket’s decentralized, Polygon-based exchange. PredictIt enforces limits and KYC tied to US regulations; Polymarket uses pUSD on Polygon and a CLOB for order matching. For traders, the practical differences are liquidity depth, fee structure, and access. PredictIt’s markets can be attractive for US-focused political flows, while Polymarket’s faster execution and broader global coverage suit crypto-native traders.

Where Polymarket and PolyArb fit

Polymarket runs markets using the CTF and UMA for resolution; outcomes are ERC-1155 tokens redeemable for $1 after resolution. That infrastructure enables intra-market arbitrage when summed ask prices fall below $1.00. PolyArb is a paid bot that monitors Polymarket for these opportunities. It’s non-custodial, charges $99/month, promises 40ms latency versus ~800ms for free bots, and guarantees a $7.62 minimum edge per trade while sending Telegram and Discord alerts.

Practical trading considerations and risks

A mathematical edge from buying a full set exists only when Σ bestAsk < $1.00, but several risks remain: resolution disputes via UMA, settlement timing, slippage or partial fills, fee changes, and smart-contract risks. Never treat an edge as unconditional; the spread is mathematical, but execution and resolution introduce real-world risk. Geographic restrictions also matter: Polymarket blocks new orders from certain countries and VPN bypass is prohibited. Check Polymarket’s official restrictions before trading.

How to use this information

If you track NYC mayor markets for political exposure, use PredictIt for US-regulated access and Polymarket for faster on-chain execution if your jurisdiction allows it. If you’re an arbitrage trader, a tool like PolyArb automates monitoring and order placement on Polymarket and surfaces edges quickly. Remember to factor fees, taker/slippage, and resolution risks into your sizing and never assume guaranteed settlement without reading Polymarket’s docs.

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Try PolyArb for $99/month to get 40ms latency, Telegram and Discord alerts, and automated intra-Polymarket edge hunting. Sign up to monitor live markets.

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FAQ

Does PredictIt list NYC mayor markets?
Yes — PredictIt has historically listed US political contracts including municipal races when created by the community and approved under its rules.
Can PolyArb trade PredictIt markets?
No. PolyArb operates on Polymarket and exploits intra-Polymarket arbitrage. It cannot place orders on PredictIt’s platform.
What does the $7.62 minimum guaranteed edge mean?
PolyArb advertises a minimum guaranteed edge per trade of $7.62 as part of its product offering. This is a product guarantee; execution still faces risks like slippage and resolution disputes.

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