Having been involved with both male and female teams (at a non-professional, regional level), I have seen well-organized, talented female teams beat or tie male teams of the same age group. Since I’ve not witnessed such matchups at a post adolescent level, I will confine my observations to the 16 to 19 year old groups that I’ve watched.
For sheer physical strength and speed, most females will not be able to successfully compete with most males. And, if that’s all there was to soccer/football, then there would be little room for debate. But soccer, as much of life, is rarely about pure physical strength and speed.
Soccer is a game which, if properly executed, makes the most of teamwork and strategy. Women are generally better than males at exploiting teamwork and employing set plays (particularly during adolescence). A well-practiced, cohesive team of females relies more on short, accurate passes, as well as excellent verbal and non-verbal communication with teammates. They seem to be better at picking up each other’s cues and, as a result, are quite successful at placing themselves where they need to be on the field.
Far from shrinking violets, I’ve seen plenty of young women not back down from fast-approaching, larger male defenders. If they’re skilled, why should they? There’s no need to do so. Due to a somewhat better dexterity that affords them the opportunity to momentarily out-maneuver their opponent, they can get off a quick pass when pressured.
I recall studies that indicate that, at any given age, women hear better (facilitating onfield communication), have better peripheral vision (who’s coming at me?), and are better at visually picking up motion and detecting small objects in a large field of vision – all abilities that help them determine locations of teammates and opponents and size up their next move.
Not having the luxury of greater speed and strength, they draw successfully on other skills, such as knowing their teammates, drilling on what needs to be done under a given circumstance, learning how to shield the ball, employing more give and go, and developing higher technical skills.
Women’s soccer has advanced to such a level of elegance that i now prefer watching it to men’s games. Ten years ago I never would have said that.
Otoh, negative observations were formed about women’s soccer, but i’ve talked too much already.