Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
94% | 6% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
94% | 6% | 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 | 94% |
| 2nd Half O/U 0.5 | 79% |
| O/U 1.5 | 78% |
| United States O/U 0.5 | 77% |
| Belgium O/U 0.5 | 76% |
| 1st Half O/U 0.5 | 72% |
| Both Teams to Score | 59% |
| O/U 2.5 | 54% |
| Team to Advance | 52% |
| United States 2nd Half O/U 1.5 | 51% |
| Belgium 2nd Half O/U 0.5 | 50% |
| United States 2nd Half O/U 0.5 | 49% |
| Belgium 2nd Half O/U 1.5 | 49% |
| United States 1st Half O/U 0.5 | 48% |
| 2nd Half O/U 1.5 | 48% |
| Belgium 1st Half O/U 0.5 | 47% |
| United States O/U 1.5 | 42% |
| Belgium O/U 1.5 | 41% |
| 1st Half O/U 1.5 | 37% |
| O/U 3.5 | 32% |
| Both Teams to Score in Second Half | 32% |
| Will the Match Go to Extra Time? | 28% |
| Both Teams to Score in First Half | 22% |
| 2nd Half O/U 2.5 | 22% |
| Belgium O/U 2.5 | 18% |
| Will the Match Go to a Penalty Shootout? | 18% |
| United States (-1.5) | 17% |
| Belgium (-1.5) | 17% |
| United States O/U 2.5 | 17% |
| O/U 4.5 | 16% |
| 1st Half O/U 2.5 | 14% |
| United States 1st Half O/U 1.5 | 13% |
| Belgium 1st Half O/U 1.5 | 13% |
| United States (-2.5) | 7% |
| Belgium (-2.5) | 7% |
| O/U 5.5 | 7% |
| United States (-3.5) | 2% |
| Belgium (-3.5) | 2% |
| O/U 6.5 | 2% |
| O/U 7.5 | 2% |
| Belgium (-4.5) | 1% |
| United States (-5.5) | 1% |
| Belgium (-5.5) | 1% |
| O/U 8.5 | 1% |
| United States (-4.5) | 0% |
Market context
The underlying real-world event is the FIFA World Cup Round of 16 match between the United States and Belgium, scheduled for Monday, 8 p.m. ET at Lumen Field in Seattle. This fixture pits the advancing USMNT against the Red Devils, with the crowd-implied probability of 17% for the US securing more markets reflecting their status as significant underdogs despite a solid chance to progress[3].
Historically, this matchup frames the current probability through a pattern of repetition and recent deterioration for the Americans. For the second time in three World Cups, the USA faces Belgium in the Round of 16, echoing a familiar rivalry that has often exposed American defensive frailties[7]. This context is sharpened by a March 28 warmup where Belgium blew out the United States 5-2, a result that starkly highlighted the Americans' defensive difficulties and set a high bar for Belgium's superiority[1]. While initial odds suggested uncertainty, recent developments have altered perceptions, leaving the US as heavy underdogs for a deeper run[3].
Traders should watch for final squad announcements and any late injury updates, as key absences could drastically shift the dynamic given the US's defensive vulnerabilities[1]. The match schedule is fixed for Monday, but dependencies include potential weather conditions at Lumen Field and the tactical adjustments made by both coaches following the warmup loss[3]. Recent expert predictions remain split, with some analysts favouring a narrow Belgium win while others anticipate a US victory, indicating the market remains highly uncertain despite the underdog status[2]. Monitoring these pre-match variables is essential, as the quarterfinal berth on the line adds significant pressure to the contest[3].
Methodology
Sports-specific comparison page for United States vs. Belgium - More Markets. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
FAQ
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- What are live sports odds on Polymarket?
- Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.
- Which sports markets are available?
- Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
- How fast do sports winnings settle?
- Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.
- Can I import form data and lineups?
- This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.
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