Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) Pick polygram.ink (preferred broker) |
75% | 25% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
75% | 25% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 Rounds | 75% |
| Juliana Miller vs. Ravena Oliveira | 74% |
| O/U 1.5 Rounds | 57% |
| O/U 2.5 Rounds | 47% |
| Fight won by submission? | 46% |
| Fight to Go the Distance? | 38% |
| Fight won by KO/TKO? | 23% |
| Oliveira to win by KO/TKO? | 9% |
| Miller to win by KO/TKO? | 6% |
Market context
Juliana Miller meets Ravena Oliveira in a women’s flyweight prelim, and the market’s 74% YES price implies Miller is the clear favourite, with Oliveira priced as the underdog. That sits broadly in line with outside moneyline views that have Miller around the low-70s in implied win probability, so the consensus is already pointing one way rather than hiding a contrarian split. The main case for Miller is style: she has the higher pre-fight Elo in some trackers and the better grappling volume, with more takedown attempts, more control time, and a submission-heavy win profile, while Oliveira’s winning record leans far more towards finishes than decisions.[1][2][5]
For a handicapper, the value question is whether 74% overstates Miller’s edge if Oliveira keeps it standing or turns it into a short, volatile fight. Oliveira’s profile is the more knockout-dependent one, while Miller is the more active wrestler and submission threat; that combination often creates a market that favours the more reliable decision path, but it also leaves room for a live underdog if the grappling exchanges are limited.[2][3][4] UFC’s official bout page and the event schedule are the key things to watch because the market only resolves on an official UFC result, and any late change, cancellation, or postponement beyond the settlement window would push it to 50-50.[8]
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $57K.
Methodology
This page reviews UFC Fight Night: Juliana Miller vs. Ravena Oliveira (Women's Flyweight, 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 Who Will Win, which mirrors 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.
UK Frequently Asked Questions
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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