CrossFit’s bold positions on health and fitness have brought us into conflict with the entrenched interests of the fitness, nutrition, and food and beverage industries. These entities have launched and funded numerous efforts to restrain and regulate CrossFit affiliates. They have engaged in repeated scientific misconduct and fraud, lobbied for legislation that would criminalize the daily practices of CrossFit affiliates and trainers, and covered up the corporate partnerships that fund their work, at times in contravention of federal law. CrossFit has successfully fought back, suing them for their lies and misconduct, informing policymakers of their schemes, and advocating against their proposed legislation. While our adversaries’ agenda is covert, our mission in these CrossFit Battles could not be clearer: to keep fitness legal.