This document provides feedback from a coach to a sprinter, Filip, on his block start technique. The coach notes that Filip is strong but could improve his acceleration. His main areas for improvement are his setup position, first step, and first five steps out of the blocks. Specifically, the coach observes that Filip's setup rounds his back and prevents full extension. On his first step, Filip's lead arm does not extend high enough to drive his motion. By the third step, Filip has already come upright instead of maintaining his driving phase. The coach provides tips on adjusting Filip's block position and driving with power from his first step to carry his momentum farther down the track.