Polymarket US MLB void rules: what happens if a player doesn't play
If an MLB player doesn't play, Polymarket US does not void or refund it; it settles by the rule quoted below.
Below is every Polymarket US MLB rule we could find for injuries, postponements, ties and overtime, quoted from Polymarket US's own source, last verified November 11, 2026. The rules panel on each contract governs.
Every published Polymarket US MLB settlement rule
Player prop: Player doesn't play
Settles by a set rule (not a refund)“Non-Participation: If {participant} does not participate in {event}, the Contract settles to last fair market prices.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Player prop: Player gets hurt mid-game
Settles on the result“Partial Participation: If {participant} begins participation in {event} but later retires, is substituted, is disqualified, or otherwise permanently ceases participation, statistics accumulated up to that point will count as reflected in official statistics.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Player prop: Game postponed or suspended
Settles by a set rule (not a refund)“If {event} is not rescheduled within two weeks of the originally scheduled date, the Exchange may, in its sole discretion, settle Contracts at last fair market prices or initiate the Contract Outcome Review Process.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Player prop: Does overtime count?
Settles on the resultShootout stats do not count unless the contract says so.
“For sports where overtime, extra time, or extra innings are used, statistics recorded during these periods will count toward {statistic} unless otherwise specified in the Contract Terms.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Game winner: Game postponed or suspended
Settles by a set rule (not a refund)“Cancellation: If {event} is canceled and not rescheduled before the Expiration Date, the Exchange may, in its sole discretion, settle Contracts at last fair market prices, or extend the Expiration Date pending rescheduling, in accordance with the Contract Outcome Review Process.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Game winner: Game ends tied
Settles by a set rule (not a refund)“Ties: In the case of a tie or draw where no winner is declared by the official rules of {event}, Contracts will settle at $0.50.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Game winner: Does overtime count?
Settles on the result“Overtime: Unless otherwise specified in the Contract Terms, the Contract includes any overtime, extra time, penalty shootout, or tiebreaker that is part of the official rules of {event}.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Spread: Game postponed or suspended
Settles by a set rule (not a refund)“Cancellation: If {event} is canceled and not rescheduled before the Expiration Date, the Exchange may, in its sole discretion, settle Contracts at last fair market prices, or extend the Expiration Date pending rescheduling, in accordance with the Contract Outcome Review Process.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Spread: Does overtime count?
Settles on the result“Overtime: Unless otherwise specified in the Contract Terms, the final score includes all overtime, extra time, or other additional periods included in the official rules of {event}.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Total: Game postponed or suspended
Settles by a set rule (not a refund)“Cancellation: If {event} is canceled and not rescheduled before the Expiration Date, the Exchange may, in its sole discretion, settle Contracts at last fair market prices, or extend the Expiration Date pending rescheduling, in accordance with the Contract Outcome Review Process.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Total: Does overtime count?
Settles on the result“Period of Play: Unless otherwise specified in the Instrument Rules, the settlement score shall include all overtime, extra time, extra innings, and other additional periods included in the official rules of {event}.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Combo leg: Player doesn't play
Settles by a set rule (not a refund)The combo settles at the product of the legs' values and is not refunded.
“A leg assigned such a value under this provision does not cause the Contract to resolve to $0.00; rather, the Contract will settle at the product of the values of all legs, rounded down to the nearest Minimum Tick.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Combo leg: Game postponed or suspended
Settles by a set rule (not a refund)The combo settles at the product of the legs' values and is not refunded.
“A leg assigned such a value under this provision does not cause the Contract to resolve to $0.00; rather, the Contract will settle at the product of the values of all legs, rounded down to the nearest Minimum Tick.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Combo leg: Game ends tied
Settles by a set rule (not a refund)The combo settles at the product of the legs' values and is not refunded.
“A leg assigned such a value under this provision does not cause the Contract to resolve to $0.00; rather, the Contract will settle at the product of the values of all legs, rounded down to the nearest Minimum Tick.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Check another platform or case
“Non-Participation: If {participant} does not participate in {event}, the Contract settles to last fair market prices.”
Source: Polymarket US contract specifications · Rule last verified November 11, 2026
Frequently Asked Questions
MLB player prop on Polymarket US: player doesn't play — what happens?
Settles by a set rule (not a refund). Polymarket US's rule: “Non-Participation: If {participant} does not participate in {event}, the Contract settles to last fair market prices.” (verified November 11, 2026).
MLB player prop on Polymarket US: player gets hurt mid-game — what happens?
Settles on the result. Polymarket US's rule: “Partial Participation: If {participant} begins participation in {event} but later retires, is substituted, is disqualified, or otherwise permanently ceases participation, statistics accumulated up to that point will count as reflected in official statistics.” (verified November 11, 2026).
MLB player prop on Polymarket US: game postponed or suspended — what happens?
Settles by a set rule (not a refund). Polymarket US's rule: “If {event} is not rescheduled within two weeks of the originally scheduled date, the Exchange may, in its sole discretion, settle Contracts at last fair market prices or initiate the Contract Outcome Review Process.” (verified November 11, 2026).
MLB player prop on Polymarket US: does overtime count? — what happens?
Settles on the result. Shootout stats do not count unless the contract says so. Polymarket US's rule: “For sports where overtime, extra time, or extra innings are used, statistics recorded during these periods will count toward {statistic} unless otherwise specified in the Contract Terms.” (verified November 11, 2026).
MLB game winner on Polymarket US: game postponed or suspended — what happens?
Settles by a set rule (not a refund). Polymarket US's rule: “Cancellation: If {event} is canceled and not rescheduled before the Expiration Date, the Exchange may, in its sole discretion, settle Contracts at last fair market prices, or extend the Expiration Date pending rescheduling, in accordance with the Contract Outcome Review Process.” (verified November 11, 2026).
MLB game winner on Polymarket US: game ends tied — what happens?
Settles by a set rule (not a refund). Polymarket US's rule: “Ties: In the case of a tie or draw where no winner is declared by the official rules of {event}, Contracts will settle at $0.50.” (verified November 11, 2026).
MLB game winner on Polymarket US: does overtime count? — what happens?
Settles on the result. Polymarket US's rule: “Overtime: Unless otherwise specified in the Contract Terms, the Contract includes any overtime, extra time, penalty shootout, or tiebreaker that is part of the official rules of {event}.” (verified November 11, 2026).
MLB spread on Polymarket US: game postponed or suspended — what happens?
Settles by a set rule (not a refund). Polymarket US's rule: “Cancellation: If {event} is canceled and not rescheduled before the Expiration Date, the Exchange may, in its sole discretion, settle Contracts at last fair market prices, or extend the Expiration Date pending rescheduling, in accordance with the Contract Outcome Review Process.” (verified November 11, 2026).
MLB spread on Polymarket US: does overtime count? — what happens?
Settles on the result. Polymarket US's rule: “Overtime: Unless otherwise specified in the Contract Terms, the final score includes all overtime, extra time, or other additional periods included in the official rules of {event}.” (verified November 11, 2026).
MLB total on Polymarket US: game postponed or suspended — what happens?
Settles by a set rule (not a refund). Polymarket US's rule: “Cancellation: If {event} is canceled and not rescheduled before the Expiration Date, the Exchange may, in its sole discretion, settle Contracts at last fair market prices, or extend the Expiration Date pending rescheduling, in accordance with the Contract Outcome Review Process.” (verified November 11, 2026).
MLB total on Polymarket US: does overtime count? — what happens?
Settles on the result. Polymarket US's rule: “Period of Play: Unless otherwise specified in the Instrument Rules, the settlement score shall include all overtime, extra time, extra innings, and other additional periods included in the official rules of {event}.” (verified November 11, 2026).
MLB combo leg on Polymarket US: player doesn't play — what happens?
Settles by a set rule (not a refund). The combo settles at the product of the legs' values and is not refunded. Polymarket US's rule: “A leg assigned such a value under this provision does not cause the Contract to resolve to $0.00; rather, the Contract will settle at the product of the values of all legs, rounded down to the nearest Minimum Tick.” (verified November 11, 2026).
MLB combo leg on Polymarket US: game postponed or suspended — what happens?
Settles by a set rule (not a refund). The combo settles at the product of the legs' values and is not refunded. Polymarket US's rule: “A leg assigned such a value under this provision does not cause the Contract to resolve to $0.00; rather, the Contract will settle at the product of the values of all legs, rounded down to the nearest Minimum Tick.” (verified November 11, 2026).
MLB combo leg on Polymarket US: game ends tied — what happens?
Settles by a set rule (not a refund). The combo settles at the product of the legs' values and is not refunded. Polymarket US's rule: “A leg assigned such a value under this provision does not cause the Contract to resolve to $0.00; rather, the Contract will settle at the product of the values of all legs, rounded down to the nearest Minimum Tick.” (verified November 11, 2026).
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