Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
50% | 50% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
50% | 50% | 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 |
|---|---|
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Set 2 Winner | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Total Sets: O/U 2.5 | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Set 1 Winner | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Set Handicap +/-1.5 | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Set 2 O/U 8.5 | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Match O/U 21.5 | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Set 1 O/U 8.5 | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Match O/U 22.5 | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Set 2 O/U 9.5 | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Set Handicap +/-1.5 | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Set 1 O/U 9.5 | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Match O/U 23.5 | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Set 2 O/U 10.5 | 50% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers Set 1 O/U 10.5 | 50% |
| Completed Match | 49% |
| ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers | 3% |
Market context
Live Polymarket data shows 50% YES probability for ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers. This market refers to the tennis match between Justin Roberts and Tyler Bowers in the ITF M25 East Lansing Men, originally scheduled for August 13, 2026 at 10:00AM ET. This market will resolve to 'Ju…
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 ITF M25 East Lansing Men: Justin Roberts vs Tyler Bowers 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.
UK Frequently Asked Questions
- 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.
- 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.
- 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.
- Are UK election prediction markets available from the UK?
- Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.
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