Answer the question about text:

Now , neither of these words has ever been used to describe any of my athletic efforts so I just waited apprehensively until I was called to run 30 feet , pick up a block , transport it 30 feet back to the starting line and do this all over again in - if I wanted to get solidly on the road to a blue award - less than 10.5 seconds . I had just got done watching one bigger , athletic girl run it in 9.8 seconds and another small , non - athletic female in 11.3 . I was confident , especially since my running mate , Kayla , was the fastest girl in the class .

What may be the reason I am happy Kayla is the fastest girl ?
We are running a relay race and we need fast runners .