How does Haruki Murakami equate running with writing?

What was the longest number of miles that Haruki ran in one day? Why did he take that challenge on?

What is the typical number of miles in a marathon? What cities did Haruki run marathons in?

What is a triathlon? How did Haruki prepare for competing in a triathlon?

What did Haruki mean when he referred to the "toxin" within?

What are the three elements that make for a good writer? Why is it necessary for a writer to be disciplined?

Why did Haruki need to be in good physical shape when he began a new writing project?