BELFAST, Maine — Sometimes not having a scoreboard at a sporting event can be a blessing. The Mount Desert Island girls cross country team not only didn’t know it had captured the Class B North title Saturday until the awards ceremony inside the Troy A. Howard Middle School gymnasium, but realized its championship fate only after Hancock County rival Ellsworth had been recognized as the runner-up. The element of surprise only added to the celebration. “It was so exciting,” said MDI senior Olivia Watson.