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Los Angeles Angels vs. Boston Red Sox odds: Kalshi vs Polymarket

Mon, Sep 7, 2026, 1:35 PM ET · MLB games · $120 traded in 24h across both venues.

Boston Red Sox: Kalshi 61¢ vs Polymarket 61¢, +0.5 pp

Mid prices. A price is the market's probability: 61¢ means 61%. The gap is Kalshi minus Polymarket in percentage points.

Two separate exchanges, two accounts. Links may carry a referral code, which never changes what is shown. Disclosures.

-4.19¢ per $1, after fees
Buy Los Angeles Angels @ Kalshi 40¢, Boston Red Sox @ Polymarket 61¢

All outcomes

OutcomeKalshi bid / askPolymarket bid / askGap
Los Angeles Angels37¢ / 40¢39¢ / 40¢-1.0 pp
Boston Red Sox59¢ / 63¢60¢ / 61¢+0.5 pp

Price history, last 3 days

193 snapshots · teal Kalshi · violet Polymarket

How this is matched

Games are matched across the two exchanges by league, team codes and date. Polymarket prices come from its live order book, Kalshi from its public API. Refreshed every 45 seconds.

What this is not

Read-only. Nothing here places or routes orders and nothing is advice. Fees, slippage and the time it takes to move money between venues are not in these numbers.

More

All MLB games disagreements · Full price history · Daily reports