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.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

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.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.

Browns vs. Bears — Odds Across Venues | Polymarket Alternative 2026

Name: Browns vs. Bears
Start: 2026-07-09T12:02:15.550Z
End: 2026-08-15T17:00:00.000Z

Platform comparison

Platform	YES odds	NO odds	Fee	KYC	Settlement
Polymarket (via Polymarket Alternative) Pick polygram.ink (preferred broker)	63%	37%	0% (USDC on-chain)	No-KYC up to $1,500	USDC, auto via UMA oracle	Open the market →
Polymarket (direct) polymarket.com	63%	37%	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
Browns O/U 19.5	63%
1H Moneyline	60%
Browns vs. Bears	56%
O/U 38.5	55%
Spread -1.5	53%
1H Spread -2.5	53%
Browns O/U 21.5	51%
Bears O/U 18.5	51%
Browns O/U 20.5	50%
Spread -2.5	50%
1H O/U 20.5	50%
O/U 39.5	49%
Browns O/U 22.5	49%
Bears O/U 19.5	47%
O/U 40.5	47%
Spread -3.5	45%
1H O/U 21.5	44%
Spread -1.5	37%

Market context

Market consensus: 63% chance of browns vs. bears. Prediction markets aggregate real capital to produce this probability signal. In the upcoming NFL game, scheduled for August 15 at 1:00PM ET: If Browns wins, the market will resolve to "Browns". If Bears wins, the market will resolve to "Bears". If the game …

Live Data & Statistics

The Polymarket order book prices Browns O/U 19.5 at 63% for "Browns vs. Bears".

Browns O/U 19.5 63% Other 37%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $182K.

Methodology

This page compares Browns vs. Bears 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 Polymarket Alternative, 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

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.
Is Betfair a Polymarket alternative?: Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
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.
Are all these platforms regulated?: No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.

Alex ChenPrediction Market Analystand

Jordan LeeSports Prediction Reporter

Trade Browns vs. Bears on Polymarket Alternative

Live order book, 0% fees, USDC settlement in seconds.

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Browns vs. Bears

Platform comparison

Outcome probabilities

Market context

Live Data & Statistics

Methodology

Resolution & payout

FAQ

Trade Browns vs. Bears on Polymarket Alternative

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