Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Legal UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Legal UK → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Legal UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Legal UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Legal UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Legal UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Polymarket Legal UK.
Active sub-markets
| Match Winner | 100% YES | 0% NO |
| Ends in Daytime | 100% YES | 0% NO |
| Both Teams Beat Roshan | 100% YES | 0% NO |
| Both Teams Destroy Barracks | 0% YES | 100% NO |
| Any Player Ultra Kill | 0% YES | 100% NO |
| Any Player Rampage | 0% YES | 100% NO |
Market context
Aurora and Team Spirit are scheduled to compete in a single-elimination Dota 2 match within the BLAST Slam Group Stage on 27 May at 16:00 UTC (11:00 AM ET). The outcome determines advancement through the tournament bracket. Settlement occurs at 21:20 UTC on the same date, allowing a five-hour window for match completion and result confirmation. The 100% crowd-implied probability reflects either exceptionally high confidence in one team's superiority or sparse liquidity typical of regional esports fixtures.
Historical precedent from comparable Dota 2 tournaments shows that group-stage matches rarely fail to complete; forfeiture or disqualification remains uncommon at BLAST-tier events. Team Spirit's track record as a top-tier squad—including multiple International appearances and consistent Major finishes—typically commands favourability in betting markets, yet Aurora's recent form and regional strength merit scrutiny. The extreme probability skew suggests either asymmetric information regarding team roster changes, recent scrim results, or simply low trading volume concentrating early positions.
Traders should monitor official BLAST announcements for schedule confirmation, player availability, and any last-minute roster substitutions through 27 May morning. Dota 2 patch updates released within 48 hours of the match can shift meta-dependent team advantages; check the Valve blog for timing. Stream status and technical delays occasionally extend matches beyond their scheduled window, though the seven-day resolution threshold provides substantial buffer. Confirmation of both teams' participation in the tournament remains the primary catalyst; withdrawal or bracket restructuring would trigger the 50-50 tie resolution clause.
Methodology
We track Dota 2: Aurora vs Team Spirit (BO1) - BLAST Slam Group Stage on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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
- Is this market available outside the US?
- Polymarket Legal UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Legal UK triggers a quick verification flow that finishes in 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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