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
| Match Winner | 0% Aurora Gaming | 100% Spirit |
| O/U 2.5 Games | 100% Over | 0% Under |
| Map Handicap: TS (-1.5) vs Aurora Gaming (+1.5) | 0% Spirit | 100% Aurora Gaming |
| Map 1 Rounds Handicap: Spirit (-6.5) vs Aurora Gaming (+6.5) | 0% Spirit | 100% Aurora Gaming |
| Map 1 Total Rounds: Over/Under 18.5 | 100% Over | 0% Under |
| Map 2 Total Rounds: Over/Under 21.5 | 0% Over | 100% Under |
Market context
Aurora Gaming and Spirit are scheduled to meet in Round 2 of the IEM Cologne Major Stage 3 Counter-Strike tournament on 12 June at 12:30 PM ET. The match is a best-of-three format, with the winner advancing through the major's bracket. Polymarket currently prices Aurora Gaming's victory at 0%, reflecting the conditional token structure on Polygon where YES tokens trade at negligible value against USDC pairs. This extreme pricing suggests either Spirit are heavily favoured by market participants or Aurora Gaming face significant uncertainty regarding participation.
Spirit have established themselves as a top-tier European roster with consistent major-stage performances, whilst Aurora Gaming represent a less predictable challenger in this tier of competition. Historical precedent from previous majors shows that 0% pricing typically emerges when one team holds substantially superior rating points, recent tournament results, or roster stability. Spirit's recent form and established standing in the competitive circuit would ordinarily justify favouring them, though such extreme probability compression warrants scrutiny of whether technical factors—roster changes, visa complications, or scheduling conflicts—are driving the market's assessment rather than pure competitive strength.
The settlement window closes on 12 June at 23:25 UTC, providing a tight window for match completion. Traders should monitor ESL's official IEM Cologne announcements for any schedule adjustments, roster confirmations, or technical delays that might trigger the 50-50 tie-resolution clause. Recent esports majors have occasionally experienced fixture postponements beyond the seven-day threshold, which would automatically resolve this contract to 50-50 regardless of competitive outcome. Confirmation of both teams' participation and the match's scheduled start time should be verified against the official tournament bracket before settlement approaches.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.
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 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi 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.
Trade Counter-Strike: Aurora Gaming vs Spirit (BO3) - IEM … on Kalshi UK
Live order book, 0% fees, USDC settlement in seconds.
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