Compare odds across prediction markets
Polymarket and Kalshi are pricing the same events differently. We match them up and show you where the gaps are.
2026 FIFA World Cup WinnerNBA ChampionBrazil Presidential Election2026 French OpenRepublican Primary 2028California GovernorPGA ChampionshipFed Rate DecisionCongress Balance of PowerIsrael Prime MinisterBitcoin price end of yearStanley Cup Champion2026 FIFA World Cup WinnerNBA ChampionBrazil Presidential Election2026 French OpenRepublican Primary 2028California GovernorPGA ChampionshipFed Rate DecisionCongress Balance of PowerIsrael Prime MinisterBitcoin price end of yearStanley Cup ChampionMarkets tracked
15,653
$8674.3M total vol
Matched events
1,326
Outcome pairs
5,765
Arb opportunities
1,575
Live
Right now we track 1,326 matched events across both platforms, covering 5,765 individual outcome pairs. Wherever prices diverge, we surface it. There are currently 1,575 arbitrage opportunities in the live snapshot — and our Telegram bot pings you the moment new ones appear.
A sample of what we track
All markets| Event | Poly | Kalshi | Gap |
|---|---|---|---|
| 2026 FIFA World Cup · Spain | 16.2% | 14.1% | +2.1pp |
| 2028 GOP Primary · Donald Trump | 41.0% | 38.0% | +3.0pp |
| NBA MVP · Shai Gilgeous-Alexander | 31.0% | 28.0% | +3.0pp |
| Brazil Presidential · Lula da Silva | 44.0% | 41.0% | +3.0pp |
| Fed Rate Decision · Cut by 25bps | 38.0% | 35.0% | +3.0pp |
How it works
Markets are matched
An AI matcher finds equivalent markets on both platforms. "2026 FIFA World Cup Winner" on Polymarket corresponds to "2026 Men's World Cup Winner" on Kalshi.
Prices are compared
For every outcome we pull the current ask price from each platform. Spain at 16.2% on Polymarket vs. 14.1% on Kalshi is a 2.1 percentage point gap.
Gaps surface automatically
When the combined cost of YES on one side and NO on the other is less than $1, you have a risk-free arbitrage. The scanner flags these as they appear.
Get arbitrage alerts on Telegram
The scanner watches Polymarket and Kalshi prices live. When a new ≥2% spread appears, our bot pings you instantly — no app to install, no email to check. Just /start in Telegram.
- Fires every 10 minutes
- Top 5 opps per alert
- Free, /stop any time
vsReady to start comparing?
15,653 markets, 1,575 arb opportunities right now.