The Two Forms of Discipline

It was the hottest day of the year so far and I was running the London Marathon, 2025. My legs were ready and my mind clear, months of training behind me that gave me the confidence to go after my sub three hour thirty goal. For the first twenty kilometres, everything flowed and I was on track. But somewhere around the 27 kilometre mark, passing through Canary Wharf, my quads began to cramp. My breathing went shallower than it should have been. I’d used more salts and gels than I’d planned…