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.

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.

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.

Eagles vs. Ravens | Robinhoodpredictionmarkets 2026

Name: Eagles vs. Ravens
Start: 2026-07-09T12:02:12.465Z
End: 2026-08-15T23:00:00.000Z

Platform comparison

Platform	YES odds	NO odds	Fee	KYC	Settlement
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker)	50%	50%	0% (USDC on-chain)	No-KYC up to $1,500	USDC, auto via UMA oracle	Go to the live market →
Polymarket (direct) polymarket.com	50%	50%	0%	Geo-blocked in US/UK/EU	USDC, on-chain	Go to the live market →
Kalshi kalshi.com	—	—	Up to 7% per trade	US-only, KYC required	USD	Go to the live market →
Betfair Exchange betfair.com	—	—	2-5% commission	Full KYC from first trade	GBP / EUR	Go to the live market →
Manifold Markets manifold.markets	—	—	Play-money (mana)	None — play-money	Mana (no cash-out)	Go to the live market →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

Outcome	Probability
Ravens O/U 17.5	50%
Eagles O/U 19.5	50%
Ravens O/U 16.5	50%
Eagles O/U 20.5	50%
Eagles vs. Ravens	8%
Spread -2.5	8%
Spread -1.5	7%
O/U 36.5	4%
O/U 37.5	4%
Spread -4.5	3%
Spread -3.5	2%
1H Spread -2.5	0%
1H O/U 19.5	0%
1H Moneyline	0%
1H Spread -3.5	0%

Market context

The Eagles vs. Ravens prediction market currently prices this outcome at 50% YES. In the upcoming NFL game, scheduled for August 15 at 7:00PM ET: If Eagles wins, the market will resolve to "Eagles". If Ravens wins, the market will resolve to "Ravens". If the game is postponed, this…

Live Data & Statistics

The Polymarket order book prices Ravens O/U 17.5 at 50% for "Eagles vs. Ravens".

Ravens O/U 17.5 50% Other 50%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $132K.

Methodology

This page compares Eagles vs. Ravens 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

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.

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.
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.
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 Eagles vs. Ravens on Robinhood Prediction Markets

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Eagles vs. Ravens

Platform comparison

Outcome probabilities

Market context

Live Data & Statistics

Methodology

Resolution & payout

FAQ

Trade Eagles vs. Ravens on Robinhood Prediction Markets

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