San Jose Earthquakes vs. St. Louis City SC - More Markets

Platform comparison

Market context

The San Jose Earthquakes will host St. Louis City SC in Major League Soccer on 15 August at 10:30 PM ET. This market on Polymarket is pricing the likelihood of additional betting markets becoming available for the fixture at 1% implied probability, reflecting extremely low conviction that further trading venues will open liquidity on this particular match.

Historical precedent suggests MLS regular-season fixtures rarely attract secondary market proliferation unless they involve top-tier clubs or playoff implications. Polymarket's current 1% pricing aligns with typical patterns: most domestic league matches settle on a single platform, with Kalshi and Betfair showing negligible overlap on lower-profile MLS contests. Smarkets has historically avoided MLS coverage entirely, whilst Betfair's US-facing restrictions mean most American bettors encounter fragmented liquidity. The decimal odds equivalent (approximately 1.01) reflects near-certainty that no new markets will emerge before the settlement window closes on 16 August at 02:30 UTC.

Traders monitoring this market should track any late fixture rescheduling or injury announcements to high-profile players, which occasionally trigger secondary market creation on major platforms seeking volume. Polymarket's fee structure (2% taker fee) and KYC requirements remain consistent regardless of market proliferation, whereas Betfair's commission model (typically 5–10% on winnings) incentivises larger operators to avoid duplicating coverage. The settlement window's tight closure—less than 24 hours after kickoff—further disincentivises new market launches, as platforms require sufficient trading time to justify operational overhead.

Methodology

This page compares San Jose Earthquakes vs. St. Louis City SC - More Markets specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.

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

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

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. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.