Horrible Harry and the Field Day Revenge!

In the 36th Horrible Harry book, Doug and Harry compete to win as many field day events as possible, but can they overcome their classmates' unsportsmanlike tactics?

It's Field Day at South School, and this year the winner will get to choose a coveted prize for his or her homeroom. Harry is determined to choose the prize, but Doug worries at what cost. When his best friend starts winning challenges with his unconventional techniques, the rest of Room 3B responds in kind. A disastrous tug-of-war shows the class that winning isn't everything, and revenge isn't as sweet as it might seem.