UFC Fight Night: Melissa Mullins vs. Bia Mesquita (Women's Bantamweight, Prelims)

Platform comparison

Active sub-markets

Market context

Bia Mesquita’s UFC debut has been priced like a lopsided favourite, and that has been reinforced by the fight-night setup rather than weakened by it. DraftKings had her at around **-600** against Melissa Mullins, with the bout booked for three rounds at women’s bantamweight, while UFC coverage on social media showed Mesquita making weight and the prelim pairing listed for UFC Fight Night on 20 June.[1][3][5]

The way to read that 0% crowd line is through Mesquita’s recent MMA pattern: she is **7-0** as a pro and has repeatedly turned high-level grappling into fast finishes, which is exactly why traders have been leaning so hard one way.[2] Comparable UFC markets for short-notice or debut grapplers often stay one-sided right up to the walkout, then move only if there is a late injury, weight issue, or a clear change in bout status rather than a pure opinion shift.[1][4]

For the next catalyst, the key check is whether the UFC’s official result posts a clear winner, because this market settles strictly off the UFC’s call and would flip to **50-50** if there were a draw, no contest, cancellation, or postponement beyond the deadline.[4] The practical watchlist is simple: any late commission note, broadcast scratch, or official bout-order change on the prelims would matter more than pre-fight chatter now that the event window is effectively here.[5]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews UFC Fight Night: Melissa Mullins vs. Bia Mesquita (Women's Bantamweight, Prelims) across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Prediction Today — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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 Prediction Today, 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.

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 does it cost to trade on Prediction Today?

Zero. Prediction Today 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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Prediction Today triggers a quick verification flow that finishes in minutes.