UFC Fight Night: Darren Elkins vs. Yadier del Valle (Featherweight, Prelims)

Platform comparison

Market context

Polymarket prices this fight at **1% YES**, which is a near-zero implied chance for Darren Elkins on the contract rather than a view on the broader card. On-chain, the position is settled in **USDC** on **Polygon** through conditional tokens, so the market will only pay out on the UFC’s official result: Elkins, del Valle, or the market’s 50-50 fallback if the bout is a draw, no contest, not scored, cancelled, or pushed back beyond the resolution cut-off.

The historical read-through is straightforward: the price is consistent with a live underdog who would need either a clear official win or a scoring edge in a close, grinding fight. Public fight data shows Elkins at **29-12** and del Valle at **10-1**, with del Valle landing more significant strikes per minute and doing so more accurately, while Elkins brings the more established wrestling volume and greater submission pressure.[16][2] Comparable pre-fight stat sheets also point to a classic veteran-versus-prospect dynamic: Elkins tends to be busier in takedown attempts, but del Valle has the cleaner striking profile and stronger recent efficiency metrics.[1][5]

For traders, the main catalysts are simple: the official bout order, any late changes to the prelim schedule, and whether either fighter misses weight, withdraws, or is moved off the card. Because this market resolves only on UFC’s official declaration, the key dependency is the fight actually taking place and being scored normally; any cancellation, no contest, or postponement beyond 22 August would force the 50-50 outcome under the contract rules. Recent preview coverage has also treated del Valle as the more likely winner on form, which helps explain why the market has stayed pinned near the floor despite Elkins’ grappling upside.[10][15]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews UFC Fight Night: Darren Elkins vs. Yadier del Valle (Featherweight, Prelims) across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

UK Frequently Asked Questions

Is this market available outside the US?

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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.

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Do I pay tax on prediction market profits in the UK?

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How do I deposit on Polymarket from the UK?

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