What should a proof of performance report focus on to help secure sponsorship renewals?

A proof of performance report should focus on how well your sponsor did, not how well you performed as a racer. Instead of highlighting your race wins and podium finishes, document the media exposure your sponsor received, include links to articles and press coverage, photos and videos showing their branding and products (like sampling events), and demonstrate that you achieved the goals discussed in your initial meeting. The purpose is to give your marketing contact ammunition to sell the renewal to their boss and secure next year's budget.