Who were the three medal contestants? Why was Anne not worried about the exams?

The three medal contestants...

It was admitted that the medal contestants had practically narrowed down to three--Gilbert Blythe, Anne Shirley, and Lewis Wilson...

Anne isn't worried about the exams because she is too busy enjoying nature...

Girls, sometimes I feel as if those exams meant everything, but when I look at the big buds swelling on those chestnut trees and the misty blue air at the end of the streets they don't seem half so important."