UFC 330: Dustin Stoltzfus vs. Mansur Abdul-Malik (Middleweight, Prelims)

Platform comparison

Market context

Dustin Stoltzfus, a middleweight prospect from Pennsylvania, faces Mansur Abdul-Malik on the preliminary card of UFC 330 on 15 August 2026 at Madison Square Garden in New York. The bout is scheduled for three rounds at 185 pounds. Resolution hinges on official UFC scorecards or stoppage; any technical outcome—draw, no contest, cancellation before 29 August—triggers a 50-50 split.

The 100% implied probability reflects extreme scarcity of comparable preliminary middleweight matchups with both fighters' records publicly available at market inception. Historical UFC preliminary data shows resolution delays averaging 48–72 hours post-event, with official results occasionally amended following medical reviews. Traders automating settlement should flag the 13-day buffer between the scheduled date and the resolution window close; this accommodates UFC administrative processing but creates a narrow window for conditional orders tied to injury announcements or late withdrawals.

Key catalysts include fighter injury reports in the fortnight before the event—Abdul-Malik's recent fight history and any weight-cut complications warrant monitoring through UFC social channels and MMA Junkie's injury tracker. Venue changes or card restructuring, though uncommon for MSG events, would trigger technical resolution. Programmatic traders should set alerts for official UFC weigh-in confirmations (typically 24 hours pre-fight) and cross-reference preliminary card rosters against the main card; preliminary slots occasionally shift if higher-ranked fighters withdraw. The settlement window's precision to milliseconds suggests automated resolution; manual verification against UFC.com's official results page remains prudent for edge cases involving split decisions or overturned verdicts.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi Fees, which mirrors the Polymarket order book directly.

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?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

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.