Hobby10k wrote:
No I think you'd struggle to find someone capable of running below 10.5 in the 100 also capable of going below 29 in the 10000m on the same training. If you gave them infinite time to retrain, it is probably possible.
10.5 speed takes dedicated speed work for most runners (if they're even capable of it) and the most I'd expect a 100m specialist be able to beat the women's WR would be up to like a mile. 4:07 doesn't seem impossible for a guy running like 9.8 in the 100m to let his speed training slip a bit so he can train up for the mile.
29 on a track for a 10000m for a guy would take some heavy threshold work, but it's definitely on the weaker end compared to the 100-800 records.
Your best bet would be to get a 400m specialist and immediately have them beat the 100-800m records. Then you spend a few months and work them up into 10000m shape
It doesn’t work that way. It’s physically impossible for 10.5 sprinter to run distance. They’re different types of athletes and no type of training changes that.