Found a good picture of me from the Marathon-Photos site. At about 5kms from the finish, I overtook someone and collected a large stick in the front wheel. Lots of crunching noises and bits of stick flying through the air, and somehow, I smashed it to pieces and kept on going. Got to the finish and found a large section of stick still threaded though the spokes - you can see it in the photo. And when I think of what could have happened...