Diamond Nine Athletics

Diamond Nine turns every bullpen into something a coach can act on. Import the data from your pitch-tracking unit or log a pen by hand, then see what changed, pitch by pitch, for every arm on your roster: velocity, spin, break and release. FOR COACHES • One roster sorted the way you think: by name, last pen, quietest, peak velo or biggest gain • An attention strip that shows who needs a training plan and whose plan runs out this week • Every athlete's full history in one place: arsenal, movement profile, trends over time and personal bests • Compare any two bullpens side by side to see what actually changed • Build week-by-week training plans from a drill library you control, with video • Film tools: slow motion, frame by frame, draw lines and measure angles • Message an athlete about a specific bullpen or clip • Development reports as a PDF for a parent, a recruiter or your own records FOR ATHLETES • Every bullpen you've thrown in one profile, with your velocity, spin and movement over time • Your training plan for the week, with each drill checked off as you go • Your film in one place, with your coach's notes on it • Plyo-ball tracking that celebrates every new personal record • Milestone clubs at 80, 85, 90 and 95 mph • A direct line to your coach when something feels off NO TRACKING UNIT? Log a pen by hand. Tap the strike zone for each pitch, pick the type, and add a velo range if you have a radar gun. HOW IT WORKS Your coach gives you their invite code. Enter it when you create your account and you land on their roster, with nothing to approve and nobody to chase. A coach only ever sees their own athletes. Athletes must be 13 or older, and you can delete your account at any time in Settings. Built by a pitching coach who got tired of spreadsheets.