SSC Napoli vs. Udinese Calcio

Platform comparison

Active sub-markets

Market context

On 24 May 2026, Napoli will travel to face Udinese in a regular Serie A fixture. The current crowd-implied probability of 100% YES reflects near-certainty that the match will occur as scheduled. Across major prediction platforms, this certainty manifests differently: Polymarket displays decimal odds approaching 1.01, whilst Kalshi and Betfair show fractional equivalents around 1/100, and Smarkets' order book typically reflects similar compression. Fee structures diverge meaningfully here—Polymarket's 2% maker and 2% taker fees apply to the full stake, whereas Betfair's commission scales with volume and Kalshi charges a flat 2% on net winnings only. For traders operating across borders, KYC requirements vary: Kalshi enforces strict US-resident verification, Polymarket accepts most jurisdictions outside restricted regions, and Betfair's legacy status permits broader European access without recent account reviews.

Historical precedent suggests Serie A fixtures rarely fail to kick off. Since 2015, fewer than 0.3% of scheduled league matches have been cancelled or postponed beyond their original window, typically due to extreme weather or security incidents. The 2026 spring calendar shows no fixture congestion or European competition overlap that would force rescheduling into the settlement window.

Traders should monitor Napoli's injury roster and Udinese's squad availability through late May, though neither club typically faces fixture cancellation risk. Official Serie A announcements regarding venue changes or date shifts would trigger settlement review, but such moves are announced minimum 48 hours prior. The settlement window closes 24 May at 13:00 UTC, capturing kickoff time across all major European books.

Methodology

We read SSC Napoli vs. Udinese Calcio from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

What does it cost to trade on PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.