Kalshi launches NFL injury protection in prediction markets

Kalshi launched protected player markets for the NFL ahead of Week 5 of the 2026 NFL season, offering customers an early-exit option when a player leaves the game before halftime and does not return. Protection applies only to eligible markets and must be selected before trading; Kalshi calculates a fair pregame price that determines the early-exit payout, which is distinct from the original amount staked.

## How NFL injury protection works on Kalshi

The new product arrives as traditional sportsbooks expand injury insurance on NFL props, but Kalshi takes a different approach. Rather than automatically refunding the bet, Kalshi sets a settlement price just before kickoff; that price is independent of the price the customer paid and can result in a payout lower than the initial stake.

“versions of select NFL player markets that include an early exit payout.” — Kalshi

Protection is limited to "Yes" selections with minimum objectives (for example, the player scoring at least one touchdown). Protected contracts carry separate pricing from standard versions, and that separate price affects potential payouts.

## Rules for participation and settlement

Kalshi determines protected settlement based on the player’s actual participation in the game:

• If the player participates in at least one snap in the first half but does not return after halftime, Kalshi applies the fair pregame price unless the player already reached the minimum objective.

• If the player returns to play even a single snap in the second half or in overtime, protection is voided and the market is settled according to the official game statistics.

• If the player never participates at all, Kalshi also settles at the fair price.

Protection does not require a medical report or that the injury be "officially reported"; eligibility is determined by the participation rules that the platform itself applies.

## Activation in the mobile Combo and operational limits

Kalshi allows activation of protection via a shield icon in the Combo builder mobile interface. Coverage can be applied to eligible selections within a combo, but it must be enabled before placing the trade; Kalshi does not permit retroactive activation.

In parlays, an unprotected selection that lands incorrectly can still leave the payout at $0, even if another selection in the same combo was protected. That interaction matters because it changes the expected return of the whole ticket and the customer’s risk management.

## Differences versus unprotected markets and other sports

Kalshi maintains its standard NFL player markets with the usual settlement rules when a game ends because of injury or player exit. The company has restricted protection for now to selected NFL markets; other sports, including basketball, baseball and hockey, do not have equivalent protected markets at this time.

Protected contracts typically trade at a higher price than standard versions. Kalshi determines protected prices and settlements according to contract rules it sets internally.

## Implications for operators and customers

The introduction of injury protection changes the customer choice between lower friction refunds and a higher cost to access coverage. Traders will receive a fair price before kickoff, which may be lower than what they paid, and must decide whether to enable protection when they build their mobile Combo. For operators and B2B partners, mapping participation rules and settlement conditions into their product flows is essential; see /b2b for platform guidance.

The feature reinforces the distinction between automatic refunds (the model typical at some sportsbooks) and fair-price settlement (Kalshi’s approach), and it defines protection by operational participation criteria rather than by medical certificates.

## What users should check and expect

Users considering protection should:

1. - Verify that the selection is an eligible market and that it meets the minimum objective.

2. - Enable protection via the shield icon in the Combo builder mobile before confirming the bet.

3. - Be aware that protection can increase the contract price and that, in parlays, an unprotected leg can nullify the payout for the ticket.

Operators and B2B providers integrating or reselling Kalshi products must map participation rules and settlement conditions into their product flows and clearly communicate the difference between the price paid and the fair exit price to end customers. See /sports for trade implications.

## Context and next steps

Kalshi has launched protection only in selected NFL markets for this initial phase. There is currently no official extension to basketball, baseball or hockey. The company keeps the standard versions of player markets unchanged in their injury settlement rules.

Adoption by users and the competitive response from sportsbooks and platforms will be the metric to watch over the coming weeks as the 2026 NFL season progresses.