Most people would find a different way to answer that; most people wouldn’t ask themselves that question in the first place. Caitríona Jennings isn’t most people.

She started doing ultra marathons six years ago and has dropped national women’s records. She has the best Irish times for both the 50k and 100k. Running ultras is her personal experiment.

But another question: why?

'It sounds like a crazy distance' - Caitríona Jennings who set a new women’s 100 Mile running world record

To slash a quote from runner David Blaikie, it makes no sense in a world of computers to run vast distances on foot but there’s also more to life than logic and common sense. Her decision to try and break the 100-mile world record in her first running of the distance at the Tunnel Hill 100 in Illinois last mo

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