Abby has asthma, but that doesn't stop her from wanting to run in the big race. Although she is pretty fast, sometimes she may cough or wheeze and have an asthma attack. Jason, a boy in her class, teases her about her asthma and suggests she enter the pie-eating contest instead. But Abby is determined not only to run in the race, but to win it as well. With her doctor's approval and recommendations, she exercises every day with her father, takes her medicine, and does her breathing exercises in anticipation of the big day. When that day arrives, Abby is ready. Will she beat Jason to the finish line? A note about exercising with asthma appears at the end of the book.