Given the question: - imagesize is 200px    - caption is polly the cross-country phase of badminton horse trials 2011 stockton and westwood poser at the quarry during      - fullname is polly stockton    - birth date is 23 october 1973      - image is polly stockton westwood poser quarry badminton 2011.jpg    - discipline is eventing    Given the details above, guess who could this information be about.
The answer is:
polly stockton