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.

les chances sont contre vous, les dés sont pipés

the chances of you succeeding are very small

:
He knows the odds are stacked against him, but he's still going to try.
Il sait que les chances sont contre lui, mais il va quand même essayer.
With so many experienced competitors, the odds are stacked against you.
Avec tant de concurrents expérimentés, les chances sont contre vous.