the odds are stacked against you

US /ðə ɑːdz ɑː stækt əˈɡɛnst ju/
UK /ðə ɑːdz ɑː stækt əˈɡɛnst ju/
"the odds are stacked against you" picture
1.

las probabilidades están en tu contra, todo está en tu contra

the chances of you succeeding are very small

:
He knows the odds are stacked against him, but he's still going to try.
Él sabe que las probabilidades están en su contra, pero aun así lo intentará.
With so many experienced competitors, the odds are stacked against you.
Con tantos competidores experimentados, las probabilidades están en tu contra.