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 |
|---|---|
| Segovia: Paul Inchauspe vs Keegan Smith Set 2 O/U 8.5 | 100% |
| Segovia: Paul Inchauspe vs Keegan Smith Set 1 O/U 8.5 | 100% |
| Segovia: Paul Inchauspe vs Keegan Smith Set 1 Winner | 100% |
| Segovia: Paul Inchauspe vs Keegan Smith Set 2 O/U 9.5 | 100% |
| Segovia: Paul Inchauspe vs Keegan Smith Set 1 O/U 9.5 | 100% |
| Segovia: Paul Inchauspe vs Keegan Smith Set 2 O/U 10.5 | 100% |
| Segovia: Paul Inchauspe vs Keegan Smith Set 1 O/U 10.5 | 100% |
| Segovia: Paul Inchauspe vs Keegan Smith Total Sets: O/U 2.5 | 99% |
| Segovia: Paul Inchauspe vs Keegan Smith Match O/U 21.5 | 85% |
| Segovia: Paul Inchauspe vs Keegan Smith Match O/U 22.5 | 75% |
| Segovia: Paul Inchauspe vs Keegan Smith Match O/U 23.5 | 75% |
| Completed Match | 50% |
| Segovia: Paul Inchauspe vs Keegan Smith | 41% |
| Segovia: Paul Inchauspe vs Keegan Smith Set Handicap +/-1.5 | 25% |
| Segovia: Paul Inchauspe vs Keegan Smith Set Handicap +/-1.5 | 25% |
| Segovia: Paul Inchauspe vs Keegan Smith Set 2 Winner | 0% |
Market context
Paul Inchauspe’s meeting with Keegan Smith in Segovia is the on-court event behind the market, and the current **72% YES** implies traders lean towards Inchauspe advancing. That sits close to the match-preview consensus from Tennis Tonic, which lists Inchauspe at roughly **72.5%** in its head-to-head comparison, while other preview pages have Smith as only a narrow favourite on price alone, with the market treating the contest as close rather than one-sided.[1][6]
The historical frame is straightforward: there is no prior head-to-head, so the signal comes from recent form and surface splits rather than any direct matchup history.[2] Inchauspe’s recent run is stronger on paper in 2026, with a reported **12-4** record, while Smith is shown at **35-20** across the wider career sample and a more mixed short-term profile.[1][2] Comparable markets on Challenger-level matches often move quickly on late line-up or live-score information, especially when one player starts well or when the draw has already shortened the path through the round.[3]
For traders, the main catalyst is whether the scheduled Segovia start actually leads to a completed result, because the market settles to **50-50** if the match is not played, ends level, or is delayed beyond seven days without a winner.[4] The practical watchpoint is the live scoreboard and any official order-of-play update: if the match begins and one player retires, the advancing player will determine settlement, while a confirmed walkover or cancellation would flip the outcome away from the current Inchauspe lean.[3][4]
Methodology
Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Segovia: Paul Inchauspe vs Keegan Smith plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.
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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