Fair and square
Definition 1 of 1
Pro Tip 1/3Positive Vibes
The phrase often implies respect for someone's achievements or actions. 
He did his chores fair and square, and now he's playing video games.
Pro Tip 2/3Competitive Context
Commonly used to describe outcomes in games, sports, or competitions. 
The underdog team won fair and square, surprising everyone.
Pro Tip 3/3Not Just Wins
Can also refer to honest losses or simply playing without deceit. 
Despite losing, the team played fair and square throughout the season.