If you are the UK you will have seen coverage of the London Marathon. 230 people ran for Parkinson's UK and raised a pile of money. Some of the runners were PWP themselves. Last to finish was the guy shown in this video who was inspired to complete the event by his daughter. He had to walk the whole way but he got there.
Watched it - it was very inspiring and I love the comments his daughter made!! "I forgot what Parkinson's is....is it the leg thing.... or the shaking thing?"