MILLER PLACE - The Miller Place cross-country team has not one, but two secret weapons: identical twins Tiana and Talia Guevara.

The super-competitive girls have won several back-to-back races for the past three years. But they say there's no sibling rivalry: they are teammates and best friends. There's someone else who's hot on their trail: their younger sister, seventh-grader Sierra Guevara. She hopes to one day be the best of the three.