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% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 1 O/U 8.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Total Sets: O/U 2.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 2 Winner | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Match O/U 21.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 1 O/U 9.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Match O/U 22.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 1 O/U 10.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Match O/U 23.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa | 0% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 1 Winner | 0% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set Handicap +/-1.5 | 0% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 2 O/U 8.5 | 0% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 2 O/U 9.5 | 0% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 2 O/U 10.5 | 0% |
Market context
Paula Badosa faces Alevtina Ibragimova in the Iasi Open round of 16, a match originally set for 3:00 AM ET on 16 July 2026. The 0% implied probability on Ibragimova advancing reflects a stark consensus that the Spanish star will prevail, with analysts predicting a straight-sets victory and a 6-2 set scoreline in her favour[1]. This extreme pricing mirrors historical patterns where top-tier players face lower-ranked opponents in early tournament stages, where the market rarely leaves room for the underdog unless injury or withdrawal occurs.
Traders should monitor Badosa’s physical status and any official delay notices, as the settlement window extends to 23 July 2026, allowing for a seven-day postponement buffer before a 50-50 resolution triggers. Recent previews suggest the match will likely stay under 19.5 total games, reinforcing the expectation of a dominant performance[2]. On Polymarket, this 0% probability translates to decimal odds of 1.00 for Badosa, whereas Kalshi and Betfair typically display fractional or decimal odds with distinct fee structures and KYC thresholds that may limit access for certain users. Smarkets, by contrast, offers lower fees but requires verified identity, creating a divergence in liquidity and accessibility compared to Polymarket’s permissionless model.
The key catalyst remains the official start time confirmation; any delay beyond the seven-day window without a winner forces a split settlement. With Badosa’s form and head-to-head advantage heavily favoured, the market’s current stance aligns with expert tips favouring her straight-set win[1]. Platform differences in how odds are presented—implied probability versus decimal—mean traders comparing books must adjust for conversion nuances when assessing value across Polymarket, Kalshi, Betfair, and Smarkets.
Methodology
This page compares Iasi Open: Alevtina Ibragimova vs Paula Badosa 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
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
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.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- 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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