Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Set 2 Winner | 100% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Set 1 O/U 8.5 | 100% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Total Sets: O/U 2.5 | 100% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Match O/U 21.5 | 100% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Match O/U 22.5 | 100% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Match O/U 23.5 | 100% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina | 0% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Set 2 O/U 8.5 | 0% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Set 1 Winner | 0% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Set 2 O/U 9.5 | 0% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Set 1 O/U 9.5 | 0% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Set Handicap +/-1.5 | 0% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Set 2 O/U 10.5 | 0% |
| ITF Brisbane: Chase Ferguson vs Duje Markovina Set 1 O/U 10.5 | 0% |
Market context
Chase Ferguson is due to play Duje Markovina in an ITF Men Brisbane match, but the market is currently pricing the chance of Ferguson advancing at **0% YES**, which usually signals either a stale line, an unlisted contest, or a matchup that the crowd believes is effectively dead. On Polymarket-style interfaces, that reads as implied probability; on Kalshi it would be expressed through contract price; on Betfair and Smarkets, traders would instead compare back/lay or exchange odds and factor in commission, so the same view can look different once fees and spread are included.
For a tennis market like this, the key comparison point is whether the event actually reaches a start list and produces a result before the settlement window closes. In previous ITF-level markets, the price can stay near zero until a draw update, official order of play, or withdrawal notice confirms one side has progressed. That matters because ITF events often have late court changes and walkovers, so a nominally “finished” fixture can still settle differently if the match is not played at all or is abandoned without a winner.
Traders should watch the tournament schedule, official draw updates, and any late withdrawals or rescheduling announcements, since the market rules say a no-show, cancellation, or delay beyond seven days can force a 50-50 outcome instead of a normal winner settlement. Platform mechanics also matter: Kalshi’s KYC and US access are narrower than exchange-style access on Betfair or Smarkets, while Polymarket pricing can move more abruptly when liquidity is thin, which is especially relevant when the crowd-implied probability is already pinned at zero.
Methodology
This page compares ITF Brisbane: Chase Ferguson vs Duje Markovina 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 Robinhood Prediction Markets, 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.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets 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. Robinhood Prediction Markets 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.
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