Istanbul 2: Gijs Brouwer vs Yanki Erel

Platform comparison

Market context

Polymarket is pricing **Gijs Brouwer vs Yanki Erel** at about **25% YES** on USDC-settled conditional tokens on Polygon, which implies the market is treating Brouwer as a clear outsider and Erel as the likelier advance. The contract pays out on who advances, not on set score, so any retirement, walkover, or incomplete match matters only through the resolution rules if the ATP winner is formally determined.

That 25% sits close to the broader betting picture rather than against it. Public odds trackers for the same Istanbul 2 match have generally had Erel around 1.28–1.36 and Brouwer around 2.9–3.4, which maps to an Erel-favoured contest and leaves Brouwer with roughly a one-in-four chance before margin. TennisH2H-style listings also frame Erel as the higher-rated player in current form, with Brouwer’s live and historical match pages showing a lower ranking position than Erel’s. [4][7][8][14][15]

For traders, the main catalysts are straightforward: the scheduled start, any official delay, and whether either player withdraws before play begins. If the match is not played at all, is tied, or drifts beyond seven days without a winner, the market resolves 50-50; if play starts but ends in retirement, the advance decision still drives settlement. Keep an eye on the Istanbul 2 order of play and live score feeds, because on-chain positions on Polygon will move only when the market interprets the official match outcome under those rules. [1][9][16]

Sources: 1 · 2 · 3 · 4 · 5

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 PolyGram, 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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.