Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi UK Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi UK → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Kalshi UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Kalshi UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Kalshi UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Kalshi 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 Kalshi UK.
Active sub-markets
| Ends in Daytime | 0% YES | 100% NO |
| Both Teams Beat Roshan | 50% YES | 50% NO |
| Both Teams Destroy Barracks | 50% YES | 50% NO |
| Any Player Ultra Kill | 10% YES | 90% NO |
| Any Player Rampage | 10% YES | 90% NO |
| Match Winner | 100% YES | 0% NO |
Market context
BetBoom Team face Aurora in a best-of-one group stage match at BLAST Slam, with the fixture scheduled for 26 May at 08:40 ET. Polymarket currently prices BetBoom's victory at 10%, implying Aurora as heavy favourites. The conditional token structure on Polygon settles USDC payouts based on match outcome, with the settlement window closing at 18:50 UTC on the scheduled date—allowing roughly ten hours for the match to conclude before resolution.
BetBoom Team have competed inconsistently in recent Dota 2 tournaments, whilst Aurora has demonstrated stronger form in regional qualifiers and group stage play. Historical precedent suggests that when Polymarket prices a team below 15% in direct matchups, the underdog typically faces significant structural disadvantages—either roster instability, recent tournament exits, or unfavourable draft circumstances. BetBoom's recent performances at comparable events show mixed results against tier-one opposition, which contextualises the current pricing rather than suggesting mispricing.
Traders should monitor BLAST's official schedule for any postponements or format changes in the days preceding 26 May, as tournament organisers occasionally adjust timings for broadcast windows. Team announcements regarding roster changes or player substitutions would materially shift conditional token valuations, particularly given BetBoom's history of mid-tournament adjustments. The match format—single elimination rather than best-of-three—removes opportunities for teams to adapt between games, favouring the team with superior preparation and current form. Any technical delays extending beyond the seven-day window would trigger the 50-50 resolution clause, a tail risk worth monitoring given BLAST's infrastructure dependencies.
Methodology
We track Dota 2: BetBoom Team vs Aurora (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
- Where can I trade this market with the lowest fees?
- On Kalshi UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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 does it cost to trade on Kalshi UK?
- Zero. Kalshi UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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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