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Jem Wakeman has been explaining the rules to competitors and starting the races as master of ceremonies for more than 10 years.
Speaking about this year's event, he said: "It was very good to watch from the top – there's been lots of facepalms and some good fliers.
"Everyone does it at their own risk. I've done it myself and been injured, it's part-and-parcel of the game."
Two people had to be taken to hospital from this year's event, which took place on 26 May.
The races are labelled "unsafe" by the local authority and are classed as an extreme sport.