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.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets 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.

Milwaukee Brewers vs. Pittsburgh Pi… | Robinhoodpredictionmarkets 2026

Name: Milwaukee Brewers vs. Pittsburgh Pirates
Start: 2026-07-04T13:02:42.629Z
End: 2026-07-17T22:40:00.000Z

Platform comparison

Platform	YES odds	NO odds	Fee	KYC	Settlement
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker)	62%	38%	0% (USDC on-chain)	No-KYC up to $1,500	USDC, auto via UMA oracle	Go to the live market →
Polymarket (direct) polymarket.com	62%	38%	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
1st 5 Innings O/U 3.5	62%
O/U 8.5	50%
1st 5 Innings Spread -1.5	50%
1st 5 Innings Spread -1.5	50%
1st 5 Innings Spread -2.5	50%
1st 5 Innings Spread -2.5	50%
1st 5 Innings O/U 2.5	50%
1st 5 Innings O/U 4.5	50%
Extra Innings	50%
Milwaukee Brewers vs. Pittsburgh Pirates	47%
NRFI	47%
1st 5 Innings O/U 5.5	38%
Spread -1.5	36%
Spread -1.5	34%
1st 5 Innings O/U 6.5	22%

Market context

Traders on decentralised prediction markets give 62% probability to milwaukee brewers vs. pittsburgh pirates. In the upcoming MLB game between the Milwaukee Brewers and Pittsburgh Pirates, scheduled for July 10 at 6:40PM ET: This market will resolve to "Milwaukee Brewers" if the Milwaukee Brewers win the gam…

Live Data & Statistics

The Polymarket order book prices 1st 5 Innings O/U 3.5 at 62% for "Milwaukee Brewers vs. Pittsburgh Pirates".

1st 5 Innings O/U 3.5 62% Other 38%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $404K.

Methodology

We read Milwaukee Brewers vs. Pittsburgh Pirates 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

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.
Which platform supports Klarna/SOFORT?: Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets 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.

Alex ChenPrediction Market Analystand

Jordan LeeSports Prediction Reporter

Trade Milwaukee Brewers vs. Pittsburgh Pirates on Robinhood Prediction Markets

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Milwaukee Brewers vs. Pittsburgh Pirates

Platform comparison

Outcome probabilities

Market context

Live Data & Statistics

Methodology

Resolution & payout

FAQ

Trade Milwaukee Brewers vs. Pittsburgh Pirates on Robinhood Prediction Markets

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