Bloomfield Hills: Jacob Fearnley vs Tristan Boyer

Platform comparison

Market context

Jacob Fearnley’s match with Tristan Boyer in Bloomfield Hills has already been completed, and the result recorded by 365Scores is Fearnley winning 1-0, which is the relevant outcome for a winner-takes-all settlement rather than a void or split result.[1] That makes the crowd-implied 100% YES effectively a reflection of a settled result, not a live pricing call on match quality or serve-by-serve momentum.[1]

For comparison across platforms, Polymarket and Kalshi typically express this kind of outcome as an implied probability, while Betfair and Smarkets show decimal prices that traders mentally convert into percentage terms; in practice, a 100% market on a completed match usually means the book has no meaningful uncertainty left, aside from settlement rules.[1] The more useful distinction is not the headline price but the contract design: exchange-style venues can still show bid-ask friction and fees, while prediction markets and event books often differ on KYC reach and who can access the market, which affects liquidity rather than the underlying tennis result.

The main catalysts to watch on a live match market of this sort are scheduling changes, walkovers, retirements and official score reporting, because those determine whether a contest resolves as a player win or as a no-contest under the market rules. Here, the presence of a recorded final score means the key dependency is whether the exchange or venue recognises that result for settlement; if it does, the market should remain aligned with Fearnley rather than drifting on any later tennis news.[1]

Sources: 1

Methodology

This page compares Bloomfield Hills: Jacob Fearnley vs Tristan Boyer specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi Alternative, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Kalshi Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Kalshi Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.