Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Review UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Map 2 Winner | 100% |
| O/U 2.5 Games | 100% |
| Map 1 Total Rounds: Over/Under 21.5 | 100% |
| Map 2 Rounds Handicap: Keyd (-3.5) vs BORRACHEIROS (+3.5) | 100% |
| Map 1 Total Rounds: Over/Under 24.5 | 100% |
| Map 1 Winner | 0% |
| Match Winner | 0% |
| Map Handicap: Keyd (-1.5) vs BORRACHEIROS (+1.5) | 0% |
| Map 1 Rounds Handicap: Keyd (-3.5) vs BORRACHEIROS (+3.5) | 0% |
| Map 2 Total Rounds: Over/Under 21.5 | 0% |
| Map 3 Rounds Handicap: Keyd (-3.5) vs BORRACHEIROS (+3.5) | 0% |
| Map 3 Total Rounds: Over/Under 21.5 | 0% |
| Map 1 Rounds Handicap: Keyd (-6.5) vs BORRACHEIROS (+6.5) | 0% |
| Map 2 Rounds Handicap: Keyd (-6.5) vs BORRACHEIROS (+6.5) | 0% |
| Map 2 Total Rounds: Over/Under 24.5 | 0% |
| Map 3 Rounds Handicap: Keyd (-6.5) vs BORRACHEIROS (+6.5) | 0% |
| Map 3 Total Rounds: Over/Under 24.5 | 0% |
Market context
Keyd and BORRACHEIROS are scheduled to meet in a best-of-three opening match in the BetBoom Storm Group Stage, with the listed start time at 17:00 UTC on 3 August 2026. The current crowd-implied price of 0% YES is an extreme outlier against the published market and third-party previews, which still show Keyd as the clear favourite rather than a coin-flip or outright underdog.[1][3][6][9]
For comparable reads, the useful reference point is that pre-match CS2 markets tend to be driven less by name recognition than by roster continuity, map pool depth, and whether a team is active on the tournament server at the scheduled hour. Public listings for this fixture show a Keyd edge of roughly 75% on Polymarket and about 76% on another sportsbook-style view, while BO3 preview pages also lean to a 2-0 or 2-1 Keyd result; that makes a 0% YES screen more likely to reflect stale order book positioning, thin liquidity, or a data feed issue than a meaningful consensus on BORRACHEIROS.[3][7][9][12]
For a programmatic workflow, the key checks are straightforward: confirm the match page still shows the original start time, watch for any bracket or schedule changes on tournament coverage, and monitor whether the series begins but fails to complete, because the market has explicit 50-50 fallback rules for cancellation, ties, or a delay beyond seven days without a winner. If you are automating alerts, the highest-value trigger is not the crowd percentage itself but any change in the fixture status, since a late reschedule would matter more for settlement than pre-match sentiment.[1][5][6][10]
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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.
- 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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