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David “Jacko” Jackson Drives 100 Ultramarathons for Brain Injury

8/31/2026

30 3 Full Breakdown

Summary

Story summary

David “Jacko” Jackson is attempting 100 ultramarathons in 100 days.
He began in May from north Wales and plans to finish at Caernarfon Castle on 5 September.
Jackson raises money for Headway and Head for Change, supporting brain-injury survivors.
A leg injury on day 14 forced him to run one ultramarathon daily instead of two marathons.
Wife Catherine serves as his physio, nutritionist and logistics chief, preparing meals in their camper-van.

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Story summary

David “Jacko” Jackson is attempting 100 ultramarathons in 100 days.
He began in May from north Wales and plans to finish at Caernarfon Castle on 5 September.
Jackson raises money for Headway and Head for Change, supporting brain-injury survivors.
A leg injury on day 14 forced him to run one ultramarathon daily instead of two marathons.
Wife Catherine serves as his physio, nutritionist and logistics chief, preparing meals in their camper-van.