SDSU Aztec wrote:
The average middle school boy can run 8:00. I ended up running 10K at a pace about 30 seconds faster than my middle school mile so I would guess 45 minutes.
But you didn't train "optimally" which is OP's premise.
You had school, work and other stuffs to deal with. I also doubt you had ideal training facilities or coaches.
If you could have devoted 15 years of your life solely for running, you would have run faster.