Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
96% | 4% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
96% | 4% | 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 |
|---|---|
| O/U 0.5 | 96% |
| O/U 1.5 | 85% |
| Rosenborg BK O/U 0.5 | 85% |
| 2nd Half O/U 0.5 | 84% |
| Viking FK O/U 0.5 | 78% |
| 1st Half O/U 0.5 | 77% |
| Both Teams to Score | 67% |
| Rosenborg BK 2nd Half O/U 0.5 | 65% |
| O/U 2.5 | 64% |
| Viking FK 2nd Half O/U 0.5 | 58% |
| Rosenborg BK 1st Half O/U 0.5 | 55% |
| 2nd Half O/U 1.5 | 55% |
| Rosenborg BK O/U 1.5 | 54% |
| Viking FK 1st Half O/U 0.5 | 47% |
| 1st Half O/U 1.5 | 43% |
| Viking FK O/U 1.5 | 43% |
| O/U 3.5 | 41% |
| Both Teams to Score in Second Half | 37% |
| 2nd Half O/U 2.5 | 28% |
| Rosenborg BK O/U 2.5 | 27% |
| Rosenborg BK 2nd Half O/U 1.5 | 27% |
| Both Teams to Score in First Half | 26% |
| Rosenborg BK (-1.5) | 24% |
| O/U 4.5 | 23% |
| Viking FK 2nd Half O/U 1.5 | 22% |
| Rosenborg BK 1st Half O/U 1.5 | 19% |
| 1st Half O/U 2.5 | 18% |
| Viking FK O/U 2.5 | 18% |
| Viking FK (-1.5) | 14% |
| Viking FK 1st Half O/U 1.5 | 14% |
| Rosenborg BK (-2.5) | 11% |
| O/U 5.5 | 11% |
| Viking FK (-2.5) | 5% |
Market context
Rosenborg BK will face Viking FK in the Norwegian Eliteserien on 14 August at 1:00 PM ET. The market is pricing additional betting options around this fixture at 24% implied probability, suggesting traders expect limited secondary market activity or specific outcomes to materialise.
Rosenborg holds a historical advantage in Norwegian football, having won 28 league titles, though their recent form has been inconsistent. Viking FK, based in Stavanger, has emerged as a competitive mid-table side in recent seasons. Historical precedent suggests that when Eliteserien matches generate secondary markets, they typically attract modest liquidity unless the fixture carries playoff implications or involves title contenders. The current probability reflects cautious positioning ahead of a regular-season encounter between a traditional powerhouse and a solid challenger.
Traders should monitor team news releases and official Eliteserien communications closer to the settlement window. Injury announcements, particularly regarding key attacking or defensive personnel, often shift secondary market expectations. Recent Norwegian football coverage via NRK Sport and Fotball.no will carry squad updates in the days preceding the match. The fixture's position within the season calendar—mid-August in a campaign running to November—means it carries standard league significance rather than championship-deciding weight, which may explain the modest probability assigned to expanded market activity.
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 Rosenborg BK vs. Viking FK - More Markets 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.
- 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.
- 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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