UFC Fight Night: Cody Brundage vs. Andre Petroski (Middleweight, Prelims)

Platform comparison

Active sub-markets

Market context

Cody Brundage fought Andre Petroski on the UFC Fight Night prelims in the middleweight division, and the market resolves on the official UFC result. A 100% YES crowd price leaves no room for uncertainty in the listed outcome, so the useful read is on settlement risk rather than fight handicapping. The cleanest comparator is the official bout record: UFC Stats lists Brundage as the winner over Petroski, while Sherdog’s highlight clip also refers to Brundage flooring Petroski. That makes the contract straightforward if the UFC’s result stands, but the 50-50 clause still matters if the result were later changed to a No Contest or altered by commission action.

For accessibility, the regulatory frame is more relevant than the sporting one. Under German GlüStV rules, offering or advertising access to betting-style products can fall within a tightly controlled gambling regime, so availability to German users may be restricted or geo-blocked. In the US, CFTC reach can matter where a contract is treated as a derivatives product rather than pure entertainment wagering, particularly for platform compliance and state-by-state access. “No-KYC up to $1,500” usually means a user can place or withdraw within that limit before identity checks are triggered, which broadens access but does not remove AML, sanctions, or jurisdictional screening. Traders should watch for any UFC or commission post-fight correction, though none is indicated in the current source set; the key dependency is the official result before the settlement window closes.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track UFC Fight Night: Cody Brundage vs. Andre Petroski (Middleweight, Prelims) 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

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.