Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Rome: Nuria Brancaccio vs Julia Riera | 100% |
| Completed Match | 100% |
| Rome: Nuria Brancaccio vs Julia Riera Set 1 Winner | 100% |
| Rome: Nuria Brancaccio vs Julia Riera Match O/U 21.5 | 100% |
| Rome: Nuria Brancaccio vs Julia Riera Set 1 O/U 8.5 | 100% |
| Rome: Nuria Brancaccio vs Julia Riera Total Sets: O/U 2.5 | 100% |
| Rome: Nuria Brancaccio vs Julia Riera Match O/U 22.5 | 100% |
| Rome: Nuria Brancaccio vs Julia Riera Match O/U 23.5 | 100% |
| Rome: Nuria Brancaccio vs Julia Riera Set 2 Winner | 0% |
| Rome: Nuria Brancaccio vs Julia Riera Set 2 O/U 8.5 | 0% |
| Rome: Nuria Brancaccio vs Julia Riera Set 2 O/U 9.5 | 0% |
| Rome: Nuria Brancaccio vs Julia Riera Set Handicap +/-1.5 | 0% |
| Rome: Nuria Brancaccio vs Julia Riera Set Handicap +/-1.5 | 0% |
| Rome: Nuria Brancaccio vs Julia Riera Set 2 O/U 10.5 | 0% |
| Rome: Nuria Brancaccio vs Julia Riera Set 1 O/U 9.5 | 0% |
| Rome: Nuria Brancaccio vs Julia Riera Set 1 O/U 10.5 | 0% |
Market context
Market consensus: 100% chance of rome: nuria brancaccio vs julia riera. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Nuria Brancaccio and Julia Riera in the Rome, originally scheduled for July 17, 2026 at 11:30AM ET. This market will resolve to 'Nur…
Methodology
This page tracks Rome: Nuria Brancaccio vs Julia Riera across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.
Resolution & payout
Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.
Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.
FAQ
- How accurate are political prediction markets?
- Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.
- What resolution source is used for elections?
- Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.
- How fast do political markets react to news?
- High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.
- Why do Polymarket and Kalshi differ on elections?
- Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.
- Which political events have the biggest volume?
- US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.
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