The Prediction Markets

Market comparison

Niagara-on-the-Lake mayoral election winner?

2 venues · 8 outcome rows · 3 comparable lines · 0 verified parity · active

Polymarket

Open venue ↗

54 outcomes · $25K reported volume

Observed 3m ago

Observed 44s ago

Recorded venue end date: Oct 27, 2026

3 outcomes · $2K reported volume

Observed 3m ago

Recorded venue end date: Oct 26, 2027

Check settlement rules before comparing contracts. Matched outcomes may settle differently. These venues also report end dates more than 48 hours apart; event identity does not mean the contracts close or settle together. These are stored prices; record update times do not certify live quotes. Differences exclude fees and available size.

A shared identity alone does not make a price difference executable.

Andrea Kaiser

Same label, rules unverified

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.

Polymarket

30.5%

Bid 26.0% · Ask 35.0%

Andrea Kaiser

Open Polymarket ↗

Kalshi

29.0%

Bid 27.0% · Ask 36.0%

Andrea Kaiser

Open Kalshi ↗

Price difference 1.5 pp

Erwin Wiens

Same label, rules unverified

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.

Polymarket

66.0%

Bid 62.0% · Ask 70.0%

Erwin Wiens

Open Polymarket ↗

Kalshi

61.0%

Bid 55.0% · Ask 63.0%

Erwin Wiens

Open Kalshi ↗

Price difference 5.0 pp

Vaughn Goettler

Same label, rules unverified

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.

Polymarket

6.5%

Bid 3.1% · Ask 9.9%

Vaughn Goettler

Open Polymarket ↗

Kalshi

6.0%

Bid 1.0% · Ask 11.0%

Vaughn Goettler

Open Kalshi ↗

Price difference 0.5 pp

Jim Diodati

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

59.5%

Bid 47.0% · Ask 72.0%

Jim Diodati

Open Polymarket ↗

Kalshi

—

Kevin Martineau

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

1.1%

Bid 0.4% · Ask 1.7%

Kevin Martineau

Open Polymarket ↗

Kalshi

—

Lori Lococo

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

2.9%

Bid 0.7% · Ask 5.0%

Lori Lococo

Open Polymarket ↗

Kalshi

—

Michael Lucid

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

16.0%

Bid 9.6% · Ask 22.3%

Michael Lucid

Open Polymarket ↗

Kalshi

—

Paul Manning

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

5.4%

Bid 0.9% · Ask 9.9%

Paul Manning

Open Polymarket ↗

Kalshi

—

Prices are shown as percentages of a $1 payout. “pp” means percentage points. A dash means data is unavailable.