Here’s a refined version of your story for clarity and flow:
My best friend and I decided to enter a bike race together. We agreed to finish at the same time because we both wanted to win first place, but didn’t want to compete against each other. Unfortunately, during the race, I fell and injured my knee, so I couldn’t continue. She was a true friend and didn’t want to go on without me, but I convinced her to finish the race. In the end, she took first place! 🥇
This version corrects minor grammar and improves readability while keeping your story intact. It sounds heartfelt and clear—nice work!