Built for the fourth mile

Northfield's marketing was built around sponsored athletes running times its customers would never run. Sales were concentrated in a mid-tier trainer bought overwhelmingly by people in their first two years of running. The brand was, in effect, embarrassed by its own best product.

The first two years of running are the interesting ones. They are where the injuries happen, where the questions are constant, and where almost nobody is being spoken to seriously. Elite marketing assumes you already know things. New runners do not, and they are acutely aware of it.

The line became about the fourth mile — the point where the novelty has worn off and it becomes a decision. Sponsored athletes stayed, but as coaches rather than as aspiration. Social moved to a weekly cadence of genuinely useful, unglamorous instruction, filmed simply.

The organic instruction content became the highest-performing paid creative we ran, by a distance. It also aged well, which matters more than peak performance when you are running the same account for a year.