ITF Bali: Sanhui Shin vs Alexander Chang

Platform comparison

Market context

Sanhui Shin’s ITF Bali match against Alexander Chang is being priced very differently across venues: a sports odds feed gives Shin around a **74.4%** win chance, while the prediction market sits at **0% YES**, implying the contract is effectively not expecting a straightforward Shin advance at current levels.[1] That gap matters because the market settles on whether Shin *advances*, not simply whether the match is played, so a low YES price can reflect either a view that Chang is favoured, or a belief that the result will not be decided in the usual way within the settlement window.[1]

Historically, this kind of price collapse is more informative when paired with tournament-specific context: ITF matches can be vulnerable to withdrawals, walkovers, retirements and scheduling changes, and those events often matter more than baseline head-to-head models in short-dated contracts. The quoted sports line from the comparison feed is the only explicit external benchmark here, and it still leaves a wide spread versus the market-implied 0%, which suggests the contract is pricing in a material non-completion or opposite-side outcome rather than a normal pre-match coin-flip.[1]

Traders should watch the published order of play, any official tournament updates, and whether either player is listed as a late withdrawal or walkover, because the market can resolve to 50-50 if the match is not played, is tied, or drifts beyond the seven-day deadline without a winner. The key dependency is whether a completed result is recorded before the settlement window closes on 31 July; if the fixture is postponed, interrupted or abandoned, that changes the payoff much more than marginal changes in pre-match tennis form.[1]

Sources: 1

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 Best Prediction Markets, 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

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 Best Prediction Markets. 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.

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.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.