YOU SAID:

I just have to outrun the idiot slower than me

INTO JAPANESE

私は私よりも遅くバカを追い越す必要があります

BACK INTO ENGLISH

I must overtake the idiot later than I

INTO JAPANESE

私は私よりも遅くバカを追い越さなければならない

BACK INTO ENGLISH

I have to overtake the idiot later than I do.

INTO JAPANESE

私は私よりも遅くそのバカを追い越さなければならない。

BACK INTO ENGLISH

I have to overtake the idiot later than I do.