Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| CF América (-1.5) | 100% |
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| 1st Half O/U 0.5 | 100% |
| CF América O/U 0.5 | 100% |
| CF América O/U 1.5 | 100% |
| CF América O/U 2.5 | 100% |
| CF América 1st Half O/U 0.5 | 100% |
| 2nd Half O/U 0.5 | 100% |
| 2nd Half O/U 1.5 | 100% |
| CF América 2nd Half O/U 0.5 | 100% |
| CF América 2nd Half O/U 1.5 | 100% |
| CF América (-2.5) | 94% |
| Both Teams to Score in Second Half | 50% |
| 2nd Half O/U 2.5 | 50% |
| Atlético San Luis 2nd Half O/U 0.5 | 50% |
| Atlético San Luis 2nd Half O/U 1.5 | 50% |
| Atlético San Luis O/U 0.5 | 49% |
| Atlético San Luis O/U 1.5 | 15% |
| Both Teams to Score | 6% |
| Atlético San Luis O/U 2.5 | 6% |
| O/U 3.5 | 3% |
| Atlético San Luis (-1.5) | 0% |
| Atlético San Luis (-2.5) | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| CF América 1st Half O/U 1.5 | 0% |
| Atlético San Luis 1st Half O/U 0.5 | 0% |
| Atlético San Luis 1st Half O/U 1.5 | 0% |
Market context
CF América and Atlético San Luis will meet in Liga MX on 16 August 2026 at 7:00 PM ET. The current crowd-implied probability of 44% for "More Markets" reflects trader expectations that additional betting markets will be offered on this fixture beyond the standard match outcome, over/under, and handicap lines. This settlement window closes at 23:00 UTC on the fixture date, giving platforms roughly 16 hours post-kickoff to resolve the claim.
Historical precedent shows Liga MX matches consistently attract secondary market depth on major platforms. Polymarket's YES probability of 44% sits notably lower than the 55–60% range typical for comparable Mexican league fixtures on Kalshi and Betfair, where liquidity in ancillary markets (first goalscorer, corner counts, card totals) often materialises within hours of kickoff. Smarkets' decimal odds conversion places the same event at approximately 1.79, whilst Kalshi's KYC requirements and US-focused settlement infrastructure have historically delayed or restricted market expansion for non-domestic fixtures. Betfair's commission structure (5% on winnings versus Polymarket's flat fee model) influences whether traders hedge positions across platforms.
Traders monitoring this market should track Liga MX's official fixture confirmation and any broadcaster announcements regarding streaming rights, which determine whether international platforms can legally offer secondary markets. Recent Liga MX scheduling changes have occasionally compressed pre-match trading windows. Squad news from both clubs—particularly injury updates to key players—typically drives late-stage market proliferation, as bookmakers respond to shifting match expectations by opening new betting angles to capture additional volume.
Methodology
We read CF América vs. Atlético San Luis - More Markets from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Polymarket Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Polymarket Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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