Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

Which sports markets are available?

Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.

How fast do sports winnings settle?

Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.

Clacton by-election Winner | Marchmadnessbracketpredictions

Name: Clacton by-election Winner
Start: 2026-07-07T15:05:40.402Z
End: 2027-06-30T23:59:00.000Z

Platform comparison

Platform	YES odds	NO odds	Fee	KYC	Settlement
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker)	95%	5%	0% (USDC on-chain)	No-KYC up to $1,500	USDC, auto via UMA oracle	See live odds →
Polymarket (direct) polymarket.com	95%	5%	0%	Geo-blocked in US/UK/EU	USDC, on-chain	See live odds →
Kalshi kalshi.com	—	—	Up to 7% per trade	US-only, KYC required	USD	See live odds →
Betfair Exchange betfair.com	—	—	2-5% commission	Full KYC from first trade	GBP / EUR	See live odds →
Manifold Markets manifold.markets	—	—	Play-money (mana)	None — play-money	Mana (no cash-out)	See live odds →

Outcome probabilities

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

Outcome	Probability
Nigel Farage	95%
Person B	50%
Person C	50%
Person D	50%
Person E	50%
Person F	50%
Person G	50%
Person H	50%
Person I	50%
Person J	50%
Person K	50%
Person L	50%
Person M	50%
Person N	50%
Person O	50%
Person P	50%
Person Q	50%
Person R	50%
Person S	50%
Person T	50%
Person U	50%
Person V	50%
Person W	50%
Person X	50%
Person Y	50%
Person Z	50%
Person AA	50%
Person AB	50%
Person AC	50%
Person AD	50%
Person AE	50%
Person AF	50%
Person AG	50%
Person AH	50%
Person AI	50%
Person AJ	50%
Person AK	50%
Person AL	50%
Person AM	50%
Person AN	50%
Person AO	50%
Person AP	50%
Person AQ	50%
Person AR	50%
Other	50%
Count Binface	5%
Giles Watling	0%
Jovan Owusu-Nepaul	0%
Matthew Bensilum	0%
Natasha Osben	0%
Tony Mack	0%
Andrew Pemberton	0%

Market context

Market consensus: 95% chance of clacton by-election winner. Prediction markets aggregate real capital to produce this probability signal. A by-election for the United Kingdom parliamentary constituency of Clacton is expected to be held soon following the announced resignation of incumbent Nigel Farage. This market w…

Methodology

Sports-specific comparison page for Clacton by-election Winner. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Are prediction markets better than sports betting?: Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
When do sports markets resolve?: Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
Which sports markets are available?: Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
How fast do sports winnings settle?: Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.
Can I import form data and lineups?: This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.

Chris ReedPolitical Forecasting Editorand

Maya TorresFinancial Markets Writer

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Clacton by-election Winner

Platform comparison

Outcome probabilities

Market context

Methodology

Resolution & payout

FAQ

Trade Clacton by-election Winner on March Madness Predictions

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