It's more than a tendency. Men's élite performance is consistently 10% (speed) to 30% (strength) better than women's. While of course an élite woman will be able to beat a couch potato of a man, the difference is striking and more than a tendency. If the couch potato got up and got into training there's a pretty decent chance he could beat the woman. Fifteen-year-old schoolboys are beating female world records all the time.
Its not just in times either.
The US Women's National Soccer team, essentially, a team chosen from the best 30 or so women's soccer players in the USA, who were Women's World Champions at the time, were beaten 5-2 by a Dallas under-15 schoolboy team
The Australian Women's National soccer team was beaten 7-0 by the Newcastle Jets under-15 boys.
If 15 year old males, who are not even fully phyically mature, can give the best women players ass-whoopings like these, it shows conclusively that male speed, strength and power gives them a huge advantage over women in any sport where those attributes are required, and that includes pretty much all olympic sports, and any ball sports, team or invididual.
A number of people arguing against all this will often bring up the famous Bobby Riggs v Billie Jean King tennis match, and poit out that the female player, Billie Jean King won. There are three things however, that these arguers will always neglect to tell you.
1. Bobby Riggs was a 55 year old, washed up player, while Billie Jean King was 29, in her prime and at the top of her game.
2. The match was played under men's rules (best three of five sets) King won 6-4, 6-3, 6-3 - closer than many expected.
3. Riggs had trounced Margaret Court earlier in the year 6-2, 6-1 and Court was 31, also at the top of her game, the Australian Open and French Open champion at the time, and went on to win the US Open later in the year.
And no, contrary to what someone claimed earlier, I am not arguing that all men can beat all women all the time. That would be ridiculous. I'm still a reasonably good tennis player for my age (nearly 70) but I would be blasted off the court by Serena Williams - I'd be lucky to even win a point. Hell I even struggle to beat a lady friend of mine, who still plays in the local club circuit, and is eight years younger than me!