Can you find examples of athletes improving their results by writing
down goals on a regular basis?

Hi

Good example would be Robert Korzeniowski from Poland. Please Google
his name and read about his wins. I don't have enough written material
to build full answer, but I can assure you that this athlete worked by
writing goals and creating accurate plans - I watched many TV reviews
with him. After last Olympic Games he retired and now hi is working as
boss of sports in Polish Public TV (TVP).

Best Regards,
Andrzej

I found a good link to the article about Robert Korzeniowski, which
describes his methodology -
http://www.time.com/time/europe/magazine/article/0,13005,901040531-641107,00.html
. I just need to add, that he trained using bio-feedback equipment, so
after many hours on trainings, he exactly knew how would his body
work. This (R. Korzeniowski work) is good example, that establishing
goals connected with good plan & detailed information about own
abilities can lead to great success.