I'm struggling to find relevant information on the web. I recently filmed an mtb race where i told the organisers, on the morning of the event, that I would be filming. They had no problem and were happy for me to do so. I put the finished film of the event online. One of the competitors who appeared in the film requested that I remove footage of them. They said that under the Data Protection Act that I could not make the footage public without their permission - is this correct? I thought that as the event was a public sporting competition, I could make the footage public. Am I allowed to film mountain bike races and put the footage online without the permission of the competitors?