Pronóstico: Vikings vs. Giants

Platform comparison

Market context

The Minnesota Vikings face the New York Giants in an NFL preseason matchup on 15 August at 1:00 PM ET. Polymarket currently prices a Vikings victory at 36 per cent (YES tokens trading around $0.36 USDC on Polygon), implying a 64 per cent probability favours the Giants. This pricing reflects the conditional token structure: holders of YES tokens receive full settlement value if Minnesota wins; NO token holders profit on a Giants victory. The settlement window closes at 17:00 ET on match day, allowing roughly four hours post-kickoff for on-chain resolution.

Preseason NFL games historically exhibit lower predictability than regular-season contests, given variable roster deployment and coaching priorities. The Giants have won three of their last five preseason encounters, whilst Minnesota's preseason record over the past two seasons sits at 3–5. Home-field advantage—the game takes place in East Rutherford, New Jersey—typically carries modest weight in August fixtures. Comparable preseason matchups on Polymarket have shown that crowd-implied probabilities often shift materially once injury reports and inactive lists circulate within 24 hours of kickoff.

Key catalysts traders should monitor include official injury announcements from both franchises, expected around 48 hours before kickoff. Minnesota's status of key defensive personnel and New York's offensive line depth will likely move the market. Weather conditions at MetLife Stadium could also influence play style and scoring volume. Any postponement triggers the market's continuation clause, whilst a tie or cancellation without rescheduling forces a 50–50 resolution regardless of current pricing.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Qué Es trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.