Is it common for a female to be naturally stronger than a male?

me and a friend of mine, im a 28 male she a 22 female started going to the gym together, nothing too strenuous just a bit of cardio etc. we recently decided to join a wrestling club and as a laugh had a fight together. We both played by the rules but she was so much stronger than me throughout the whole fight which didn't last long. In the end she pinned my arms to my sides lifted me up slammed me down and pinned me to defeat. She is taller and bigger than me but i thought males were naturally stronger than females but she defeated me very easily. My question is, is this kind of thing common due to our different sizes or was this just a one off?