He calls it "joggling" - running and juggling at the same time - and Kevin Williams plans to do it for the entire 26 miles of the Brighton Marathon.
All the more amazing considering that five years ago he suffered a massive brain injury after a fall. He awoke from a two week coma with no idea who he was.
The damage to his brain was so severe, Kevin had to relearn to live from scratch. His only asset a basic muscle memory.
We caught up with him training on Brighton seafront. You can sponsor him here.
More top news
The forecast, covering the east of the region, for tonight and tomorrow.
The forecast for tonight and tomorrow in the west of the region.
Holly has the lunchtime forecast for the west of the ITV Meridian region.