David Fairs is making a bid to complete 52 10k cross training sessions in a bid to raise £10,000 for Sarcoma UK.
The actuary - who is executive director for regulatory policy, analysis and advice at The Pensions Regulator - completed his original target of 26 sessions but decided to do another 26 in order to boost his fundraising total. He completed his 28th session this morning.
To sponsor David, visit his JustGiving page here.
Speaking to PP, Fairs said he was currently doing around six 10km sessions per week, resting on Sundays. He added the challenge had also had other benefits - estimating he would be around three stones lighter when he has reached his target.
Sarcoma UK is a national charity that funds vital research, offers support for anyone affected by sarcoma cancer; bone cancer, soft tissue cancer and GIST. It is the only cancer charity in the UK focusing on all types of sarcoma.
Further information about David's challenge can be found on his JustGiving page.