26 Dec '13, 3pm
A look at top ultramarathoner PRs from the mile to 24 hours.
To start with, the topic of faster road runners coming to ultrarunning has led to more competition and lowered course records. The sample of elite runners included below is small, mainly North American and contemporary with their personal records being more for interest than analysis. Like most runners, this group has focused to a greater level on certain distances than others so some of their PRs are relatively more impressive. Yet I think the numbers alone are fascinating and show the relative strengths of different runners for road or track events. Plus, it gives a rough idea of a range of how much any well-trained (but not necessarily fast) runner’s pace is likely to drop off as the distance increases on the flat, by comparing a runner’s PR at any distance to their marathon time.