Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Fees) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| O/U 3.5 | 100% |
| Both Teams to Score | 100% |
| Both Teams to Score in First Half | 100% |
| 1st Half O/U 0.5 | 100% |
| 1st Half O/U 1.5 | 100% |
| 1st Half O/U 2.5 | 100% |
| Borussia Dortmund O/U 0.5 | 100% |
| Borussia Dortmund O/U 1.5 | 100% |
| AS Roma O/U 0.5 | 100% |
| AS Roma O/U 1.5 | 100% |
| Borussia Dortmund 1st Half O/U 0.5 | 100% |
| Borussia Dortmund 1st Half O/U 1.5 | 100% |
| AS Roma 1st Half O/U 0.5 | 100% |
| AS Roma 1st Half O/U 1.5 | 100% |
| Borussia Dortmund (-1.5) | 0% |
| AS Roma (-1.5) | 0% |
| Borussia Dortmund (-2.5) | 0% |
| AS Roma (-2.5) | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Borussia Dortmund O/U 2.5 | 0% |
| AS Roma O/U 2.5 | 0% |
| Both Teams to Score in Second Half | 0% |
| 2nd Half O/U 0.5 | 0% |
| 2nd Half O/U 1.5 | 0% |
| 2nd Half O/U 2.5 | 0% |
| Borussia Dortmund 2nd Half O/U 0.5 | 0% |
| Borussia Dortmund 2nd Half O/U 1.5 | 0% |
| AS Roma 2nd Half O/U 0.5 | 0% |
| AS Roma 2nd Half O/U 1.5 | 0% |
Market context
Borussia Dortmund and AS Roma are scheduled to contest a pre-season friendly on 15 August 2026 at 11:30 AM ET. The match forms part of both clubs' summer preparation cycles ahead of the 2026–27 competitive season. Settlement occurs at 15:30 UTC the same day, allowing roughly four hours post-kickoff for result confirmation and market closure.
The 0% implied probability reflects the market's nascent state rather than predictive consensus. Early-stage friendlies typically exhibit sparse liquidity and wide spreads; conditional order logic proves valuable here, as traders can programme entry thresholds tied to fixture confirmation, squad announcements, or injury updates from either club's official channels. Historical patterns show friendly-match markets often remain thin until 48–72 hours before kickoff, when team sheets and travel rosters become public. Dortmund's recent competitive form and Roma's managerial stability will inform baseline expectations once trading deepens.
Key catalysts include official squad lists (typically released 3–5 days pre-match), venue confirmation, and any last-minute withdrawals due to injury or domestic league scheduling conflicts. Traders monitoring Bundesliga and Serie A fixture calendars can identify scheduling pressures that influence squad rotation depth. Programmatic approaches—such as automated alerts tied to club social-media announcements or conditional orders triggered by competing market movements—help capture information asymmetries before broader market participation. The settlement window's tight closure (four hours post-match) demands reliable data feeds and rapid order execution for late-entry positions.
Methodology
This page reviews Borussia Dortmund vs. AS Roma - More Markets across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi Fees, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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