Been in more fights than I can remember. Win some lose some, but I can confidently say I won more than I lost.
Getting jumped sucks.
Happened to me several times. And in every case it was because I won a fight and the other guy got his brothers or cousins to jump me, or because I was winning a fight and their friends jumped in.
Once when I was in grade school, like 6th grade I won a fight and then a few weeks later while I was playing basketball and I got jumped by him and his two brothers(?) one of whom was a fucking grown ass man.