stand a chance - Phrases/Idioms
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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.