to have a chance of success (usually negative) If government funding is withdrawn, small, independent theatres don't stand a chance. (often + of + doing sth) We might stand a chance of winning if we continue to play as well as we did today.
Have a possibility or a hope of success, as in Do you think Mary stands a chance of finishing the marathon? or I think we stand a fair chance of seeing the Queen arrive at Buckingham Palace. This idiom was first recorded in 1796. Also see not have an earthly chance.