Quarter-midget car racer Michael Haynes and his twin brother Mark, the team's mechanic, are used to winning their races, but when a new, unscrupulous racer starts competing, even causing Michael to be injured in a race, the twins are tempted to start using different tactics themselves.

"Jeff wants to be a good wrestler, but will his bad temper get in the way?"--Unedited summary from book.

Kelcey wants to quit the basketball team. A mysterious person named Dr. C is running a basketball clinic at her school. Dr. C claims to be able to fix basketball problems, but Kelcey is sure it'll take more than a doctor to make her love the game again.

After getting soaked by Harry's water balloon, Paul chases Harry down. He didn't expect Harry to be so fast. He gives Harry a choice: join the track team or else. Harry doesn't think it's fun to run if he's not being chased. With Paul's help, can Harry find a good reason to run?

When his father's valuable signed baseball disappears during the team's sleepover, Ian Shin, catcher for the Scottsville Knights, suspects the new pitcher, Hunter Yates, but he cannot be sure, and his trust in his teammates is shattered--so he must uncover the truth to bring the team back together.

Because his father is in the Army, Oliver Jeffries has never lived in any one place for long, but he was hoping that Colorado would be different because he is the starting wide receiver on the Jackson Middle School's football team--so when he gets word that his family is moving again he is bitterly disappointed, but he has one more game and he is determined to make it a good one.