Kalshi MLB void rules: what happens if a player doesn't play
If an MLB player doesn't play, Kalshi does not void or refund it: it settles at the last fair price Kalshi sets — not your entry price back.
Below is every Kalshi MLB rule we could find for injuries, postponements, ties and overtime, quoted from Kalshi's own source, last verified November 11, 2026. The rules panel on each contract governs.
Every published Kalshi MLB settlement rule
Player prop: Player doesn't play
Settles by a set rule (not a refund)Settles at the last fair price Kalshi sets — not your entry price back.
“If a given <entity> or <player> is scratched from the starting lineup or does not appear in the starting lineup for <baseball game> at the start of the first pitch, the markets on <entity> or <player> performance in <baseball game> will resolve to the last fair price…”
Source: Kalshi contract terms (BASEBALLENTITYSTAT) · Rule last verified November 11, 2026
Player prop: Player gets hurt mid-game
Settles on the resultRequires at least one plate appearance (hitters) or one batter faced (pitchers).
“If a given <entity> or <player> is removed from <baseball game> due to ejection, injury, or substitution after appearing in the game, the markets on <entity> or <player> will settle based on the end-of-game statistics…”
Source: Kalshi contract terms (BASEBALLENTITYSTAT) · Rule last verified November 11, 2026
Player prop: Game postponed or suspended
Settles by a set rule (not a refund)Not resumed within 48 hours before becoming an official game: last fair price.
“If <baseball game> is delayed but resumes and completes within 48 hours of the originally scheduled start time, all markets remain valid and will settle based on the final official statistics.”
Source: Kalshi contract terms (BASEBALLENTITYSTAT) · Rule last verified November 11, 2026
Player prop: Does overtime count?
Settles on the resultExtra innings count.
“Statistics recorded during regulation innings and extra innings shall count toward the Underlying, unless <time period> specifies otherwise.”
Source: Kalshi contract terms (BASEBALLENTITYSTAT) · Rule last verified November 11, 2026
Game winner: Game postponed or suspended
Settles by a set rule (not a refund)Settles at the last fair price Kalshi sets — not your entry price back.
“If <baseball game> is abandoned, cancelled, or suspended and is not resumed within 48 hours of its originally scheduled start time, the market will resolve based on the last fair market price as determined by the Exchange.”
Source: Kalshi contract terms (BASEBALLGAMEWIN) · Rule last verified November 11, 2026
Game winner: Game ends tied
Settles by a set rule (not a refund)With no Tie strike listed, each team strike pays 50¢.
“For example, if two teams tie, then each team strike will resolve to $0.50.”
Source: Kalshi contract terms (BASEBALLGAMEWIN) · Rule last verified November 11, 2026
Game winner: Does overtime count?
Settles on the resultExtra innings count.
“If <baseball game> extends into extra innings, the market will resolve based on the final result after all extra innings have concluded.”
Source: Kalshi contract terms (BASEBALLGAMEWIN) · Rule last verified November 11, 2026
Spread: Game postponed or suspended
Settles by a set rule (not a refund)Settles at the last fair price Kalshi sets — not your entry price back.
“If <game> is suspended or postponed and not resumed within 48 hours of the original scheduled start time, all Contracts settle to the last fair market price prior to suspension unless the outcome has been determined”
Source: Kalshi contract terms (BASEBALLSPREAD) · Rule last verified November 11, 2026
Spread: Does overtime count?
Settles on the resultExtra innings count.
“All scoring in extra innings counts toward the final margin”
Source: Kalshi contract terms (BASEBALLSPREAD) · Rule last verified November 11, 2026
Total: Game postponed or suspended
Settles by a set rule (not a refund)Settles at the last fair price Kalshi sets — not your entry price back.
“If <game> is suspended or postponed and not resumed within 48 hours of the original scheduled start time, all Contracts settle to the last fair market price”
Source: Kalshi contract terms (BASEBALLTOTALS) · Rule last verified November 11, 2026
Total: Does overtime count?
Settles on the resultExtra innings count.
“All runs scored during regulation innings and extra innings count toward the total unless <time period> specifies otherwise”
Source: Kalshi contract terms (BASEBALLTOTALS) · Rule last verified November 11, 2026
Combo leg: Player doesn't play
Settles by a set rule (not a refund)The whole combo settles at a fair price Kalshi sets. It may, but need not, equal the product of the legs.
“If any <component> resolves to a value other than zero or one (including where a <component> settles at a fair price, or is voided, pursuant to its corresponding <rule>), the Contract shall settle at the Fair Price.”
Source: Kalshi contract terms (FOOTBALLSTATS) · Rule last verified November 11, 2026
Combo leg: Player gets hurt mid-game
Settles on the resultA player who plays and gets hurt settles that leg on his stats, so the combo pays normally.
“If each <component> resolves to a value of zero or one, “Yes” in this contract will pay out the product of the values of each <component>.”
Source: Kalshi contract terms (FOOTBALLSTATS) · Rule last verified November 11, 2026
Combo leg: Game postponed or suspended
Settles by a set rule (not a refund)The whole combo settles at a fair price Kalshi sets. It may, but need not, equal the product of the legs.
“If any <component> resolves to a value other than zero or one (including where a <component> settles at a fair price, or is voided, pursuant to its corresponding <rule>), the Contract shall settle at the Fair Price.”
Source: Kalshi contract terms (FOOTBALLSTATS) · Rule last verified November 11, 2026
Combo leg: Game ends tied
Settles by a set rule (not a refund)A leg paid at 50¢ on a tie sends the whole combo to a fair price Kalshi sets.
“If any <component> resolves to a value other than zero or one (including where a <component> settles at a fair price, or is voided, pursuant to its corresponding <rule>), the Contract shall settle at the Fair Price.”
Source: Kalshi contract terms (FOOTBALLSTATS) · Rule last verified November 11, 2026
Check another platform or case
Settles at the last fair price Kalshi sets — not your entry price back.
“If a given <entity> or <player> is scratched from the starting lineup or does not appear in the starting lineup for <baseball game> at the start of the first pitch, the markets on <entity> or <player> performance in <baseball game> will resolve to the last fair price…”
Source: Kalshi contract terms (BASEBALLENTITYSTAT) · Rule last verified November 11, 2026
Frequently Asked Questions
MLB player prop on Kalshi: player doesn't play — what happens?
Settles by a set rule (not a refund). Settles at the last fair price Kalshi sets — not your entry price back. Kalshi's rule: “If a given <entity> or <player> is scratched from the starting lineup or does not appear in the starting lineup for <baseball game> at the start of the first pitch, the markets on <entity> or <player> performance in <baseball game> will resolve to the last fair price…” (verified November 11, 2026).
MLB player prop on Kalshi: player gets hurt mid-game — what happens?
Settles on the result. Requires at least one plate appearance (hitters) or one batter faced (pitchers). Kalshi's rule: “If a given <entity> or <player> is removed from <baseball game> due to ejection, injury, or substitution after appearing in the game, the markets on <entity> or <player> will settle based on the end-of-game statistics…” (verified November 11, 2026).
MLB player prop on Kalshi: game postponed or suspended — what happens?
Settles by a set rule (not a refund). Not resumed within 48 hours before becoming an official game: last fair price. Kalshi's rule: “If <baseball game> is delayed but resumes and completes within 48 hours of the originally scheduled start time, all markets remain valid and will settle based on the final official statistics.” (verified November 11, 2026).
MLB player prop on Kalshi: does overtime count? — what happens?
Settles on the result. Extra innings count. Kalshi's rule: “Statistics recorded during regulation innings and extra innings shall count toward the Underlying, unless <time period> specifies otherwise.” (verified November 11, 2026).
MLB game winner on Kalshi: game postponed or suspended — what happens?
Settles by a set rule (not a refund). Settles at the last fair price Kalshi sets — not your entry price back. Kalshi's rule: “If <baseball game> is abandoned, cancelled, or suspended and is not resumed within 48 hours of its originally scheduled start time, the market will resolve based on the last fair market price as determined by the Exchange.” (verified November 11, 2026).
MLB game winner on Kalshi: game ends tied — what happens?
Settles by a set rule (not a refund). With no Tie strike listed, each team strike pays 50¢. Kalshi's rule: “For example, if two teams tie, then each team strike will resolve to $0.50.” (verified November 11, 2026).
MLB game winner on Kalshi: does overtime count? — what happens?
Settles on the result. Extra innings count. Kalshi's rule: “If <baseball game> extends into extra innings, the market will resolve based on the final result after all extra innings have concluded.” (verified November 11, 2026).
MLB spread on Kalshi: game postponed or suspended — what happens?
Settles by a set rule (not a refund). Settles at the last fair price Kalshi sets — not your entry price back. Kalshi's rule: “If <game> is suspended or postponed and not resumed within 48 hours of the original scheduled start time, all Contracts settle to the last fair market price prior to suspension unless the outcome has been determined” (verified November 11, 2026).
MLB spread on Kalshi: does overtime count? — what happens?
Settles on the result. Extra innings count. Kalshi's rule: “All scoring in extra innings counts toward the final margin” (verified November 11, 2026).
MLB total on Kalshi: game postponed or suspended — what happens?
Settles by a set rule (not a refund). Settles at the last fair price Kalshi sets — not your entry price back. Kalshi's rule: “If <game> is suspended or postponed and not resumed within 48 hours of the original scheduled start time, all Contracts settle to the last fair market price” (verified November 11, 2026).
MLB total on Kalshi: does overtime count? — what happens?
Settles on the result. Extra innings count. Kalshi's rule: “All runs scored during regulation innings and extra innings count toward the total unless <time period> specifies otherwise” (verified November 11, 2026).
MLB combo leg on Kalshi: player doesn't play — what happens?
Settles by a set rule (not a refund). The whole combo settles at a fair price Kalshi sets. It may, but need not, equal the product of the legs. Kalshi's rule: “If any <component> resolves to a value other than zero or one (including where a <component> settles at a fair price, or is voided, pursuant to its corresponding <rule>), the Contract shall settle at the Fair Price.” (verified November 11, 2026).
MLB combo leg on Kalshi: player gets hurt mid-game — what happens?
Settles on the result. A player who plays and gets hurt settles that leg on his stats, so the combo pays normally. Kalshi's rule: “If each <component> resolves to a value of zero or one, “Yes” in this contract will pay out the product of the values of each <component>.” (verified November 11, 2026).
MLB combo leg on Kalshi: game postponed or suspended — what happens?
Settles by a set rule (not a refund). The whole combo settles at a fair price Kalshi sets. It may, but need not, equal the product of the legs. Kalshi's rule: “If any <component> resolves to a value other than zero or one (including where a <component> settles at a fair price, or is voided, pursuant to its corresponding <rule>), the Contract shall settle at the Fair Price.” (verified November 11, 2026).
MLB combo leg on Kalshi: game ends tied — what happens?
Settles by a set rule (not a refund). A leg paid at 50¢ on a tie sends the whole combo to a fair price Kalshi sets. Kalshi's rule: “If any <component> resolves to a value other than zero or one (including where a <component> settles at a fair price, or is voided, pursuant to its corresponding <rule>), the Contract shall settle at the Fair Price.” (verified November 11, 2026).
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