anyone knows some pharse that describe this scenario someone beat u in ur professional field or something u are good at thanks

Touch grass

"He humbled me", "I was embarrassed by him" or simply "OMG he did it!!"

You might say, "I was beaten at my own game". For example, if you were a professional football player, and a child won a kickabout on the beach. The idiom can be applied to professional fields too. https://idioms.thefreedictionary.com/beat+me+at+my+own+game