Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
74% | 26% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
74% | 26% | 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 | 74% |
| Game 1 Winner | 68% |
| Game 2 Winner | 67% |
| Total Kills Over/Under 50.5 in Game 2? | 63% |
| Total Kills Over/Under 50.5 in Game 1? | 63% |
| O/U 2.5 Games | 57% |
| 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 55.5 in Game 1? | 38% |
| Game Handicap: BoomBoys (-1.5) vs OG (+1.5) | 27% |
Market context
The International 2024 Group Stage will feature a best-of-three match between BoomBoys and OG on 12 August at 10:00PM ET. OG enters as the stronger-seeded team with multiple International titles and consistent top-tier placements, whilst BoomBoys represent a regional qualifier slot with less established pedigree at the highest level of competitive Dota 2. The 68% crowd-implied probability favours OG, reflecting their historical dominance and superior recent form in qualifying tournaments.
Historical precedent suggests OG's tournament track record carries substantial weight in Group Stage predictions. OG has won two International titles and consistently reaches late-stage brackets, whereas BoomBoys lack comparable championship credentials. When established powerhouses face regional representatives in Group Stage matches, the favourites convert at rates typically exceeding 65%, though upsets occur when preparation gaps narrow or meta shifts favour unconventional strategies.
Traders should monitor team roster confirmations and recent scrim results released in the week preceding the match, as last-minute substitutions or injury announcements could shift the probability meaningfully. The Dota 2 meta patch active during The International will determine whether OG's traditional strengths or BoomBoys' potential niche strategies gain advantage. Liquipedia's tournament schedule and team announcements remain the primary sources for match-affecting developments. The settlement window closes 13 August at 08:00 UTC, allowing approximately 22 hours post-match for official results confirmation before resolution.
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: BoomBoys vs OG (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
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
- 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.
- 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.
- 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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