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 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.

Washington vs. Purdue | Polymarket Alternative — market: 84% Yes 2026

Name: Washington vs. Purdue
Start: 2026-10-06T00:12:06.000Z
End: 2026-10-17T00:00:00.000Z

Platform comparison

Platform	YES odds	NO odds	Fee	KYC	Settlement
Polymarket (via Polymarket Alternative) Pick polygram.ink (preferred broker)	84%	16%	0% (USDC on-chain)	No-KYC up to $1,500	USDC, auto via UMA oracle	Open the market →
Polymarket (direct) polymarket.com	84%	16%	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
O/U 35.5	84%
O/U 37.5	80%
2Q O/U 7.5	80%
O/U 39.5	77%
O/U 41.5	71%
4Q O/U 7.5	71%
2Q O/U 10.5	66%
O/U 43.5	64%
O/U 45.5	62%
1H O/U 21.5	62%
2H O/U 24.5	62%
Purdue O/U 23.5	62%
Spread -0.5	60%
Washington O/U 20.5	60%
3Q O/U 7.5	59%
4Q O/U 10.5	59%
Washington 1H O/U 11.5	59%
Washington 1H O/U 13.5	59%
Spread -1.5	57%
1Q O/U 7.5	57%
2Q O/U 13.5	57%
Spread -2.5	56%
O/U 47.5	56%
1H Spread -0.5	54%
O/U 49.5	53%
Purdue 1H O/U 14.5	53%
1H Spread -1.5	52%
4Q O/U 13.5	51%
Washington vs. Purdue: Total Defensive/Special Teams Touchdowns O/U 0.5	51%
Purdue O/U 3.5	51%
Washington O/U 2.5	51%
1H O/U 33.5	50%
2H O/U 21.5	50%
2H O/U 33.5	50%
Washington O/U 23.5	50%
Washington O/U 26.5	50%
Washington O/U 29.5	50%
Washington O/U 32.5	50%
Purdue O/U 29.5	50%
Purdue O/U 32.5	50%
Purdue O/U 35.5	50%
Purdue 1H O/U 12.5	50%
Washington 2H O/U 11.5	50%
Washington 2H O/U 13.5	50%
Washington 2H O/U 15.5	50%
Purdue 2H O/U 12.5	50%
Purdue 2H O/U 16.5	50%
Both Teams to Score a Touchdown	50%
Both Teams to Score a Touchdown - 2H	50%
Both Teams to Score a Touchdown - 1H	50%
Both Teams to Score a Touchdown - Q1	50%
Both Teams to Score a Touchdown - Q2	50%
Both Teams to Score Points - Q1	50%
Both Teams to Score a Touchdown - Q3	50%
Both Teams to Score a Touchdown - Q4	50%
Both Teams to Score Points - Q2	50%
Both Teams to Score Points - Q3	50%
Both Teams to Score Points - Q4	50%
Kickoff or Punt Return Touchdown	50%
Pick-Six Scored	50%
Washington vs. Purdue: Total Touchdowns O/U 6.5	50%
Washington vs. Purdue: Total Touchdowns O/U 5.5	50%
Washington vs. Purdue: Total Touchdowns O/U 7.5	50%
Purdue Total Passing Touchdowns: O/U 0.5	50%
Washington Total Passing Touchdowns: O/U 0.5	50%
Washington Total Passing Touchdowns: O/U 2.5	50%
Washington Total Passing Touchdowns: O/U 1.5	50%
Purdue Total Passing Touchdowns: O/U 1.5	50%
Purdue Total Passing Touchdowns: O/U 2.5	50%
Washington Total Passing Yards: O/U 200.5	50%
Washington Total Passing Yards: O/U 225.5	50%
Washington Total Passing Yards: O/U 250.5	50%
Purdue Total Passing Yards: O/U 200.5	50%
Washington Total Rushing Yards: O/U 125.5	50%
Purdue Total Passing Yards: O/U 225.5	50%
Purdue Total Passing Yards: O/U 250.5	50%
Washington Total Rushing Yards: O/U 150.5	50%
Washington Total Rushing Yards: O/U 175.5	50%
Purdue Total Rushing Yards: O/U 125.5	50%
Purdue Total Rushing Yards: O/U 175.5	50%
Washington Total Scrimmage Yards: O/U 375.5	50%
Washington Total Scrimmage Yards: O/U 400.5	50%
Purdue Total Rushing Yards: O/U 150.5	50%
Purdue Total Scrimmage Yards: O/U 350.5	50%
Washington Total Scrimmage Yards: O/U 350.5	50%
Purdue Total Scrimmage Yards: O/U 375.5	50%
Purdue Total Scrimmage Yards: O/U 400.5	50%
Washington 40+ Yard Field Goals Made: O/U 0.5	50%
Washington 40+ Yard Field Goals Made: O/U 1.5	50%
Purdue 40+ Yard Field Goals Made: O/U 1.5	50%
Washington Field Goals Made: O/U 0.5	50%
Purdue 40+ Yard Field Goals Made: O/U 0.5	50%
Washington Field Goals Made: O/U 2.5	50%
Washington Field Goals Made: O/U 1.5	50%
Purdue Field Goals Made: O/U 0.5	50%
Purdue Field Goals Made: O/U 1.5	50%
Purdue Field Goals Made: O/U 2.5	50%
Purdue Total Receptions: O/U 14.5	50%
Washington Total Receptions: O/U 14.5	50%
Washington Total Receptions: O/U 19.5	50%
Purdue Total Receptions: O/U 19.5	50%
Washington Total Receptions: O/U 24.5	50%
Purdue Total Receptions: O/U 24.5	50%
Washington Total First Downs: O/U 19.5	50%
Washington Total First Downs: O/U 23.5	50%
Washington Total First Downs: O/U 21.5	50%
Purdue Total First Downs: O/U 19.5	50%
Purdue Total First Downs: O/U 21.5	50%
Purdue Total First Downs: O/U 23.5	50%
Washington vs. Purdue: Total 4th Down Conversions O/U 0.5	50%
Washington vs. Purdue: Total Successful Two-Point Conversions O/U 0.5	50%
1H Spread -2.5	50%
1H Spread -5.5	50%
2H Spread -1.5	50%
2H Spread -0.5	50%
2H Spread -1.5	50%
2H Spread -5.5	50%
1Q Spread -1.5	50%
1Q Spread -0.5	50%
1Q Spread -1.5	50%
2Q Spread -1.5	50%
2Q Spread -1.5	50%
2Q Spread -5.5	50%
3Q Spread -1.5	50%
3Q Spread -1.5	50%
3Q Spread -5.5	50%
4Q Spread -1.5	50%
4Q Spread -5.5	50%
2H Moneyline	50%
2Q Moneyline	50%
3Q Moneyline	50%
4Q Moneyline	50%
1H O/U 24.5	49%
2Q Spread -0.5	49%
3Q Spread -0.5	49%
4Q Spread -0.5	49%
Purdue 2H O/U 14.5	48%
Game Goes to Overtime	48%
Spread -3.5	47%
2H Spread -2.5	47%
2Q Spread -2.5	47%
4Q Spread -2.5	47%
O/U 51.5	46%
3Q O/U 10.5	45%
1Q Spread -0.5	45%
Spread -4.5	44%
1Q O/U 10.5	44%
2Q O/U 16.5	43%
1H Spread -3.5	43%
3Q Spread -2.5	43%
4Q Spread -1.5	43%
1H Moneyline	43%
Spread -5.5	42%
2H Spread -3.5	42%
Washington vs. Purdue	41%
O/U 53.5	41%
Spread -0.5	40%
Spread -6.5	40%
1H O/U 27.5	40%
1Q Moneyline	40%
2H O/U 27.5	39%
3Q O/U 13.5	39%
Spread -1.5	38%
Purdue O/U 26.5	38%
1H Spread -1.5	38%
2Q Spread -3.5	38%
Spread -2.5	37%
1Q O/U 13.5	37%
Purdue 1H O/U 16.5	36%
1Q Spread -3.5	36%
O/U 55.5	35%
4Q O/U 16.5	35%
3Q Spread -3.5	35%
4Q Spread -3.5	35%
Spread -7.5	34%
O/U 57.5	33%
1H O/U 30.5	32%
Spread -3.5	31%
Spread -8.5	31%
2Q O/U 19.5	30%
Washington 1H O/U 15.5	30%
2H O/U 30.5	29%
Spread -4.5	28%
Spread -10.5	27%
O/U 59.5	27%
Spread -5.5	26%
1Q Spread -3.5	26%
Spread -6.5	25%
4Q O/U 19.5	25%
Spread -13.5	24%
O/U 61.5	23%
3Q O/U 16.5	23%
Spread -8.5	21%
Spread -7.5	20%
Spread -14.5	20%
O/U 63.5	20%
Spread -16.5	19%
1Q O/U 16.5	19%
Spread -10.5	16%
Spread -17.5	16%
O/U 65.5	16%
O/U 67.5	16%
1Q O/U 19.5	16%
3Q O/U 19.5	16%
Spread -13.5	14%
O/U 69.5	13%
Spread -20.5	12%
Spread -14.5	10%
Spread -16.5	9%
O/U 71.5	9%
O/U 73.5	9%
Spread -20.5	8%
O/U 75.5	8%
Spread -17.5	7%

Market context

Traders on decentralised prediction markets give 84% probability to washington vs. purdue. In the upcoming college football game between Washington and Purdue, scheduled for October 16 at 8:00PM ET: This market will resolve to "Washington" if Washington win the game. This market will resolv…

Live Data & Statistics

The Polymarket order book prices O/U 35.5 at 84% for "Washington vs. Purdue".

O/U 35.5 84% Other 16%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $180K.

Methodology

This page compares Washington vs. Purdue 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.
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.

Alex ChenPrediction Market Analystand

Jordan LeeSports Prediction Reporter

Trade Washington vs. Purdue on Polymarket Alternative

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Washington vs. Purdue

Platform comparison

Outcome probabilities

Market context

Live Data & Statistics

Methodology

Resolution & payout

FAQ

Trade Washington vs. Purdue on Polymarket Alternative

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