How fast could the average American run 400m on the track?

Same here.

I haven't run seriously in years and was a 2:05 800 guy back in college. I still jog a few miles a week to keep the weight off.

Out of sheer curiosity, I went to the track and ran a 400 in trainers a few days ago. My time was 70.9. Yesterday, I found an old pair of spikes, raced some random dude on the track who happened to be doing 400 repeats, and ended up with a 66.3.

So no, an average American is not breaking 70.

The average Joe of any country is barely breaking 2 minutes, lets be real.

Most people would have to be able to run 400m without stopping to run it in under 2 minutes. I doubt even 40% of the American population could run 400m without having to stop. Probably not even 40% of males aged 20 - 30.

You just need to observe the 'average person' running for the bus, or videos of people literally running for their lives, such as on 9/11.

I think the average male between lets say 20 to 50 could run around 1:50 for an all out 400m, however I think a non overweight male should be able to get below 1:30 as I remember running that for fun when I was 12 or 13. Just recently I was curious how fast I could run it and on a whim ran 63, I am 18 and active (play basketball) but due to that I think the average guy in his late teens or 20s who is active and plays any type of sport could probably run it in around 75 seconds though it probably depends on the sport

Here's a tip for you going forward. Never base broad generalizations upon one personal anecdote. You're using a sample of precisely one to generalize about 50 million Americans.

Very few Americans could run 400m on a track or anywhere else. Most would be done by 100m and have to walk the rest. You have to remember you are talking about the average American. That's a lot of people.