ACF Fiorentina vs. Atalanta BC

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Market context

ACF Fiorentina host Atalanta BC in the final Serie A round, with the market settling on whether the specified match outcome condition is met by the deadline on 24 May at 13:00 UTC. A YES share pays out if that outcome happens, while a NO share pays if it does not. With the crowd-implied probability at 35% YES, the market is pricing the event as more likely not to occur than to occur.

Recent form and head-to-head results point to a fairly balanced fixture rather than a clear mismatch. Fiorentina have been unbeaten at home in their last seven Serie A matches, and they followed their survival confirmation with a 2-0 win over Juventus. Atalanta, though, are still seen by several previews as the side with the stronger underlying position, and Sports Mole’s match preview goes as far as calling a 1-2 away win. The wider record is also mixed: one source puts the last 10 meetings at five Fiorentina wins, four Atalanta wins and one draw, which is the sort of split that often leaves a moderate probability close to the middle rather than near certainty.

The main catalysts are team news, motivation and whether Atalanta still need a result for their European target. WhoScored notes that Atalanta will secure Conference League football with a win or draw, so their line-up and approach may depend on that dependency. Fiorentina’s recent team selection, including David de Gea and a front line featuring Roberto Piccoli in FotMob’s predicted XI, suggests a relatively settled home side, but final confirmations usually move late in the window. Kick-off details have also varied across previews, so traders should rely on the official fixture time and any late team-sheet or injury updates before settlement.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track ACF Fiorentina vs. Atalanta BC on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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.

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.