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
Justin Roberts faces Tyler Bowers in an ITF Men's 25 tournament at East Lansing, scheduled for 13 August 2026. The 3% implied probability for Roberts reflects significant backing of Bowers, suggesting the market views this as a heavily one-sided matchup. ITF M25 events sit at the lower tier of professional tennis, drawing players typically ranked outside the top 500 or competing for ranking points in developmental circuits.
Historical context for such low probabilities in ITF matches hinges on relative ranking differentials and recent form. A 3% price generally indicates either a substantial ranking gap—perhaps 100+ positions—or recent tournament results strongly favouring one player. Roberts would need either a recent upset run or significant ranking advantage to justify higher odds; conversely, Bowers' positioning suggests recent wins or a more established ranking within the ITF circuit. Comparable M25 matches with similar probability spreads typically resolve according to seeding, with the favoured player advancing in roughly 95–97% of cases, though upsets do occur in lower-tier professional tennis at higher rates than in Grand Slam events.
Traders should monitor official ITF rankings released in the week before the match and any late withdrawals or injury announcements. East Lansing's hard court surface conditions, if unusual for either player's typical schedule, could shift expectations. The settlement window extends to 20 August, providing a seven-day buffer; any cancellation or delay beyond that triggers a 50-50 resolution. Recent ITF tournament draws are typically published five to seven days before competition begins.
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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