I reminded myself that at this stage of the race, anyone could run strong. But what toll would it take farther down the line? Long-distance running requires a certain discretion and reserve. It’s easy to let your ego get the better of you early on and run beyond your means. It’s a mistake that may haunt you as the miles and the hours add up. One of my biggest challenges in this early stage would be to have the discipline to go slow, even as other runners passed me. And I hated being passed.

