Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
53% | 47% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
53% | 47% | 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 |
|---|---|
| Granby: Nicolas Arseneault vs Andres Martin Set Handicap +/-1.5 | 53% |
| Completed Match | 52% |
| Granby: Nicolas Arseneault vs Andres Martin Match O/U 21.5 | 52% |
| Granby: Nicolas Arseneault vs Andres Martin Set 2 O/U 8.5 | 50% |
| Granby: Nicolas Arseneault vs Andres Martin Set 1 O/U 8.5 | 50% |
| Granby: Nicolas Arseneault vs Andres Martin Set Handicap +/-1.5 | 50% |
| Granby: Nicolas Arseneault vs Andres Martin Set 2 O/U 9.5 | 50% |
| Granby: Nicolas Arseneault vs Andres Martin Match O/U 22.5 | 50% |
| Granby: Nicolas Arseneault vs Andres Martin Set 1 O/U 9.5 | 50% |
| Granby: Nicolas Arseneault vs Andres Martin Set 1 O/U 10.5 | 50% |
| Granby: Nicolas Arseneault vs Andres Martin Match O/U 23.5 | 49% |
| Granby: Nicolas Arseneault vs Andres Martin Total Sets: O/U 2.5 | 47% |
| Granby: Nicolas Arseneault vs Andres Martin Set 2 Winner | 46% |
| Granby: Nicolas Arseneault vs Andres Martin Set 1 Winner | 45% |
| Granby: Nicolas Arseneault vs Andres Martin Set 2 O/U 10.5 | 42% |
| Granby: Nicolas Arseneault vs Andres Martin | 24% |
Market context
The market tracks whether Canadian teenager Nicolas Arseneault defeats veteran Andres Martin in the Granby Challenger match scheduled for 13 July 2026. With the crowd assigning only a 25% chance to Arseneault advancing, the pricing reflects a steep handicap for the 19-year-old against the more experienced American, despite their career win totals being identical [1].
Historical precedent in Challenger events suggests that youth often struggles against seasoned opponents when ranking gaps are significant, yet Arseneault’s career-high ranking of 491 and recent ATP Challenger activity indicate a player capable of disrupting expectations [3][2]. Comparable cases where teenagers advanced against veterans in Granby show that early-round probabilities can shift dramatically if the older player shows signs of fatigue or injury, making the current 25% figure a potential underprice if Martin’s form is questionable.
Traders should monitor Martin’s recent match fitness and any pre-tournament declarations regarding his schedule, as the American has faced scrutiny over consistency in recent months. The ATP Tour head-to-head record between the two remains unplayed, meaning no direct rivalry data exists to anchor the probability [6]. Watch for any late announcements from the Granby tournament officials or player social media regarding delays, as a cancellation or seven-day delay would trigger a 50-50 settlement, removing directional risk entirely [5].
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 Granby: Nicolas Arseneault vs Andres Martin 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
For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.
FAQ
- Which platform has the deepest political liquidity?
- Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.
- 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.
- Are political prediction markets legal in my country?
- It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.
- 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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