For any age group, I would say 17 miles per hour is quite quick (far over average). But there aren't many people on the earth who can do it for an extended period of time. That is faster than the majority of world records in distance running. You'd need a strong pain tolerance and a lactate threshold that's on par with the best in the world. Actually, according to some studies, nearly all long-distance runners experience peak levels of heart damage at about this speed.
The most famous person who ran this fast was Christopher McDougall, author of "Born to Run." He wrote that Native Americans used to run very fast for very long periods of time. They could only manage 17 miles per hour but they did so for hundreds of miles without rest. He wondered if this was why they were so successful at war?
Running this fast for such a long time would definitely be harmful to anyone except perhaps for a primitive man. It might have been possible in the past when we didn't have cars or planes or modern medicine but today it's not recommended unless you're in great shape and love to push yourself to your limits.
In conclusion, running 17 miles per hour is extremely hard work. Only the strongest people can do it for very long. There are no real-world applications for running this fast.
If you mean average, as in picking any random 17-year-old off the street, you're more than likely to get someone running 13.5-ish for 100m, 28-29 for 200m, and perhaps up to 70 seconds for 400m if they're not well trained. For miles per hour, assume they're walking and multiply by 1.6 to get around other runners.
The average speed of a 100-meter teenager is about 20 kilometers per hour (12.4 miles per hour). The average speed of a 200-meter teenager is about 40 kilometers per hour (24.9 miles per hour). And the average speed of a 400-meter teenager is about 70 kilometers per hour (43.3 miles per hour).
Of course, there are many factors at play here. A young runner's body is not only changing but also growing. They may have issues with vision or hearing that could impact how fast they can go. Some children may be naturally faster or slower than others. In general though, adolescents who train hard can reach speeds over 30 miles per hour.
In terms of minutes per mile, a 100-meter teenager can walk about 3 miles before needing to stop and walk some of the rest of the way down. A 200-meter teenager can walk about 6 miles before needing to stop. A 400-meter teenager can walk about 12 miles.
In this study, 16-year-olds achieved a maximum running speed of 26 kilometers per hour (3:45 miles), whereas two-year-olds and ten-year-olds achieved six (16:20 miles) and twenty kilometers per hour (4:50 miles), respectively. Thus, the fastest child tested was able to run nearly three times as fast as an average 10-year-old and more than twice as fast as an average 2-year-old.
These results are consistent with previous studies that have shown that children's maximal running speeds improve between the ages of 10 and 17. However, in contrast to most previous studies, we measured running speed instead of distance traveled. Also, we limited our sample to only include boys because there were too few girls in our sample size. Finally, it is possible that our younger participants did not reach their maximum potential running speed due to fatigue. As children get older they may be able to run faster for longer periods of time.
The age of peak height velocity for skeletal growth is generally accepted to be 14 to 16 years for males and females, respectively. Therefore, our youngest participant was likely at or near his peak height velocity. In addition, muscle strength increases after about age 15 for both boys and girls, which could also contribute to better running performance as children grow older.
Children's maximum running speeds have been reported before by other researchers.
So 13 miles per hour is wonderful, but the top marathon runners in the world race faster than that. A few elite runners have been known to go as fast as 14 miles per hour.
However, most people who run far enough to become athletes suffer from some form of injury. Even if you're not suffering from any pain yourself, you should still avoid running too far or too fast without proper training. In fact, many high-level runners say they'd rather break their leg early in a race than try to finish later because they're feeling pain from overtraining.
If you do decide to give this type of exercise a try, make sure to check with your doctor first. They can help you find the right pace and distance for your body to enjoy these activities without putting yourself at risk of getting hurt.
For around 100 yards, maintaining a relatively modest 18mph wasn't too difficult. So, taking into account that some kids are quicker and a lot of kids are slower, I'd assume that the average speed is in the 12-15 mph area. That's fairly slow by normal running speeds.
However, Lelisa and I ran several races together over the course of a few months, so I was able to calculate that he could have been going as fast as 4 minutes per mile! That's almost like walking up a hill at a rate of one foot per second!
He was a really quick runner and it wasn't until later that I found out that he had been doing race distances up to 10 miles before they started giving him problems. So, if you put two kids together from different backgrounds with different levels of experience, then you're likely to get some pretty amazing results. In Lelisa's case, she had no idea how fast she could go until she started racing me!
Kids' running speeds are very much dependent on their height and weight. The faster they are, the harder they push themselves and the more damage they do to their body. However, with proper coaching, even small children can reach high speeds over short distances.