SimpleFunctions
PoliticsWinner-take-all · 4 outcomes4 contractsPolymarketrefreshed 2 d agoCloses May 7, 2026 · 0d

Croydon Mayoral Election Winner

Leader sits at 66% across 4 bound outcomes, runner-up at 28%. This is a winner-take-all market — the headline is the leader’s price, not an arithmetic mean.

Leader probability

66%

Rowenna Davis

runner-up 28¢leader 66¢

Outcomes

4

winner-take-all

Runner-up

28¢

Jason Perry

Spread

38pp

contested

24h volume

$11K

liquid

Closes

May 7, 2026

0 days

Venue

Polymarket

4 bound

30-day trend

0%50%100%-30d-3w-2w-1wtodayRowenna Davis: 67% (11 days, 10 points)Rowenna Davis: 67% on 2026-05-08Jason Perry: 28% (11 days, 11 points)Jason Perry: 28% on 2026-05-08Peter Underwood: 3% (11 days, 11 points)Peter Underwood: 3% on 2026-05-08
Rowenna Davis67¢Jason Perry28¢Peter Underwood3¢
Top 3 candidates by current price · 11d

Bracket family

How the bracket ladder is priced.

Each row is one outcome on the venue. Sorted by 24h volume — the heaviest book is at the top.

Analysis

The 36% probability reflects market expectations that a specific candidate will win the Croydon mayoral election, based on aggregated contract prices from Polymarket. This implies a roughly one-in-three chance of victory. Market participants appear to be pricing in uncertainty around candidate viability, local campaign dynamics, and voter preferences. The probability could shift upward if polling data favors the candidate or downward if rival candidates gain momentum or resources. The main catalyst resolving this uncertainty will be the actual election date, when results determine the outcome definitively. Until then, contract prices reflect traders' assessments of current information, which may be limited given the relatively modest trading volume on this specific race compared to higher-profile mayoral contests.

  • Polymarket contract trading volume on Croydon ($1,128 in 24h volume) is substantially lower than Seoul mayoral contracts ($26,517), suggesting fewer informed traders are pricing this election
  • The candidate's contract trades at 8¢, indicating asymmetric risk where the majority of traders believe the candidate is more likely to lose than win
  • No recent polling data or campaign finance reports are referenced, meaning the market probability may be driven primarily by base rate assumptions about candidate quality or incumbency rather than fresh intelligence
  • The election outcome depends on voter turnout patterns and local campaign dynamics in Croydon that may not be fully reflected in Polymarket pricing
  • As the election date approaches, new information about candidate endorsements, campaign activity, or local issues would likely shift contract prices and implied probabilities

What moved the line

  • May 3Rowenna Davis14pp4054¢ · Polymarket
  • May 6Rowenna Davis13pp5467¢ · Polymarket
  • May 2Jason Perry13pp3144¢ · Polymarket
  • May 2Rowenna Davis11pp5140¢ · Polymarket
  • May 6Jason Perry11pp3625¢ · Polymarket

Recently closed in election 2026

These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.

More like this

Other questions in election 2026.

How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.

Last updated on this page: 2 d ago.