ITF Roehampton: Charles Broom vs Oliver Tarvet

Platform comparison

Market context

Charles Broom against Oliver Tarvet in Roehampton was priced by the crowd as a near certainty, with the market sitting at **100% YES** for Broom and little apparent room for a Tarvet upset. On paper, that fits the ranking gap and the live market consensus: Broom is around ATP No. 287 and Tarvet around No. 436, while early pricing in the event also shaded firmly towards Broom at roughly 1.42 in match-winner terms, versus 2.85 for Tarvet.[1][2][7]

The historical frame is still more nuanced than the crowd figure suggests. These players had no prior head-to-head before this meeting, which usually leaves more scope for grass-court variance than a market at certainty implies.[3] Roehampton itself is an entry-level M25 event on grass, where short-format matches can turn quickly on serve timing and break-point conversion, and recent comparable results show both players capable of straight-sets wins in the draw.[9][10][14] For handicappers, the favourite case is obvious, but the value debate is whether the 100% crowd estimate has priced out the smaller upset risk that comes with ITF grass conditions.

The main catalysts are schedule and completion risk rather than pure form. The match was listed for 09:30 UTC on 9 August, and by the current time it has already been played and finished 2–0 in Broom’s favour, which sharply reduces any live uncertainty if the market has not yet settled.[4][8][11] For traders, the key dependency is official result confirmation from the tournament feed; if that is delayed, the settlement rules still matter, but any scenario where the match was not played would have pushed the market towards the tie logic rather than a standard win call.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews ITF Roehampton: Charles Broom vs Oliver Tarvet 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 2026, 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.

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 Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.