Nothing to see here wrote:
So first you included a 29 year old to show that 31 is not unusual, and found 3 examples in 4 decades (1 age 29, 1 age 30, 1 age 32).
Now you added on to your stupidity, included 27 year old athletes and found - wow - even more athletes.
Let's look at the real numbers. "10% of them were over 30 years old when they set their PBs". Nope. Wrong.
Actually only 1 (one) ! was 31 or older.
Nice graph here showing Habz's outlier performance (thank you, FuriousBrit):
I'm considering that 30 years plus 1 day would also be "over 30".
I looked at PBs before the influence of supershoes. I also added some figures for athletes in their late '20s, and also athletes as young as 22, for more context.
That is a nice graph showing all performances -- it shows that some athletes can still be quite competitive up to 32 years of age, even if they are not running their PBs anymore. Physical age isn't a significant barrier to running sub-3:30s.
Of course Habz has the current advantage of supershoes.