Astana: San-Hui Shin vs Erik Arutiunian

Platform comparison

Market context

San-Hui Shin and Erik Arutiunian are scheduled to meet in Astana on 11 August 2026, with the match originally set for 04:00 ET. The 0% implied probability reflects either minimal trading activity or strong consensus that one player will not compete. Settlement occurs by 18 August 2026, allowing a seven-day window for completion; matches delayed beyond that threshold without a result trigger a 50-50 resolution.

Both players occupy lower-ranking positions in professional tennis, making historical precedent difficult to establish from head-to-head records alone. Shin, a South Korean competitor, and Arutiunian, an Armenian player, have limited ATP or WTA circuit exposure relative to seeded competitors. The absence of recent matchups between them means traders must rely on surface preference (hard court in Astana), recent form, and injury status rather than direct comparative data. Early-round qualifying matches in regional tournaments often see withdrawal rates between 8–12%, a baseline consideration when assessing cancellation risk.

Traders should monitor the ATP Challenger Tour schedule and official Astana tournament updates for any withdrawal announcements or schedule adjustments. Visa complications, injury disclosures, or late-round results in preceding tournaments can shift availability. The 04:00 ET start time—unusual for televised matches—may indicate a qualifying round or secondary court assignment, which carries higher volatility. Any confirmation of player participation in the week prior to 11 August will be material; absence of such confirmation closer to the date increases the likelihood of non-completion and potential 50-50 resolution.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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

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 does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.

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.