Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
72% | 28% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
72% | 28% | 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 |
|---|---|
| Match Winner | 72% |
| Game 1 Winner | 67% |
| Game 2 Winner | 67% |
| Total Kills Over/Under 55.5 in Game 2? | 63% |
| Total Kills Over/Under 55.5 in Game 1? | 63% |
| O/U 2.5 Games | 56% |
| Ends in Daytime | 50% |
| Both Teams Beat Roshan | 50% |
| Both Teams Destroy Barracks | 50% |
| Any Player Ultra Kill | 50% |
| Any Player Rampage | 50% |
| Ends in Daytime | 50% |
| Both Teams Beat Roshan | 50% |
| Both Teams Destroy Barracks | 50% |
| Any Player Ultra Kill | 50% |
| Any Player Rampage | 50% |
| Ends in Daytime | 50% |
| Both Teams Beat Roshan | 50% |
| Both Teams Destroy Barracks | 50% |
| Any Player Ultra Kill | 50% |
| Any Player Rampage | 50% |
| First Blood in Game 2? | 50% |
| First Blood in Game 1? | 50% |
| Total Kills Over/Under 60.5 in Game 1? | 38% |
| Game Handicap: Iron Wing (-1.5) vs Nigma Galaxy (+1.5) | 25% |
Market context
Iron Wing and Nigma Galaxy will compete in a best-of-three Dota 2 match during The International's group stage, scheduled for 12 August at 10:00 PM ET. The crowd-implied probability of 67% favours Iron Wing, reflecting their recent form and roster stability heading into the tournament. This represents a significant confidence gap between the two squads, suggesting market participants view Iron Wing as the substantially stronger outfit in this matchup.
Nigma Galaxy has historically punched above their seeding in international tournaments, with notable deep runs at previous International events despite inconsistent regular-season performances. Iron Wing's recent dominance in regional qualifiers and their consistency across LAN events provides the foundation for the current probability. The 67% mark reflects a moderate-to-strong favourite position rather than overwhelming consensus, indicating traders acknowledge Nigma's capacity to execute tactical upsets in best-of-three formats where draft flexibility and mid-game coordination can overcome raw mechanical advantage.
Traders should monitor team announcements regarding last-minute roster changes or player illness in the 48 hours before the match, as The International has seen schedule disruptions from such factors. Recent Dota 2 coverage from esports outlets including Liquipedia and The Esports Observer will provide patch notes and meta shifts that could favour either squad's hero pool. Match delays beyond seven days without completion would trigger the 50-50 resolution clause, though The International's structured group stage typically maintains tight scheduling. Iron Wing's probability may shift if either team releases scrim results or coaching staff commentary closer to the fixture date.
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 Dota 2: Iron Wing vs Nigma Galaxy (BO3) - The International Group Stage 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.
UK Frequently Asked Questions
- 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.
- Can prediction markets influence election outcomes?
- Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.
- 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.
- 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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