What is the record for the average person to run 100 metre dash?
As they have all pointed out, there is no record for the average person. I think you just mean, what does the average person run the 100m in? If that’s the case, a high school student athlete can usually do it in 11-12 seconds. The fastest runner in my city can do about 11 flat and most of the runners can do it in under 12. That, of course, does not mean that going over 12 is “slow”, it just means that the average person that is built for sprinting over endurance running will not.