UFC Fight Night: Jesus Aguilar vs. Rei Tsuruya (Flyweight, Prelims)

Platform comparison

Active sub-markets

Market context

Jesus Aguilar and Rei Tsuruya are scheduled to meet in a three-round flyweight prelim at UFC Fight Night in Macau, with the market split close to even on the bout winner. Tsuruya is the shorter-priced side in most books, with BetUS listing him around -300 and Aguilar at about +246, which implies a clear edge for the Japanese prospect rather than a true 50-50. That gap matters when comparing platforms: Polymarket shows a single YES probability, while Betfair and Smarkets typically frame the same contest through decimal prices and exchange fees, and US-facing books may also add KYC and state-access limits that do not apply in the same way on offshore or peer-to-peer venues.

The main historical read-through is that grappling-heavy flyweight prospects often attract market support when they can bank control time over three rounds, and several previews have pointed to Tsuruya’s takedowns and top position as the cleaner scoring route. Aguilar’s path is more conditional: if he can keep the fight upright or force reversals, he can narrow the margin, but if Tsuruya gets early entries and sustains top pressure, judges usually have little difficulty separating the rounds. The current 50% crowd price therefore sits below the bookmaker consensus, which suggests the market may be discounting either uncertainty around Tsuruya’s consistency or the possibility of an upset in a low-margin division.

For traders, the key catalysts are the UFC’s final bout sheet, weigh-in results, and any late card reshuffle before the May 30 start time. The settlement window runs to 31 May, so a cancellation, no contest, or postponement past 13 June would push the market to 50-50 rather than a side. Watch also for last-minute injury reports and whether the prelim order holds, because market liquidity on Polymarket can move quickly on official confirmations, while Betfair and Smarkets prices may adjust more gradually once the exchange money arrives.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read UFC Fight Night: Jesus Aguilar vs. Rei Tsuruya (Flyweight, Prelims) from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). PolyGram routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

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.

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 it cost to trade on PolyGram?

Zero. PolyGram 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, PolyGram triggers a quick verification flow that finishes in minutes.