YOU SAID:

I ran to him and slapped him across the face

INTO JAPANESE

私は彼に駆け寄り、彼の顔を叩いた

BACK INTO ENGLISH

I rushed over to him and slapped him in the face

INTO JAPANESE

私は彼の前に駆け寄り、彼の顔を叩いた

BACK INTO ENGLISH

I rushed up in front of him and slapped him in the face

INTO JAPANESE

私は彼の前に駆け上がり、彼の顔を叩いた

BACK INTO ENGLISH

I ran up in front of him and slapped him in the face

INTO JAPANESE

私は彼の前に駆け上がり、彼の顔を叩いた

BACK INTO ENGLISH

I ran up in front of him and slapped him in the face