Please help me identify this story. It was about a holiday resort where the residents bet on turtle races. One man won every race he bet on. As the story progressed, it appeared that he could see the future clearly.
What made this story interesting (and why I'd like to read it again) is that this turned out to be a curse, rather than a blessing. I can't remember why but somehow this impacted his free will.
This was in a sci-fi short story collection book, which started with "Beggars in Spain".
I'd love to read it again so any help is greatly appreciated!