Learn the phases in order
Don't try a full rep on day one. discus is a sequence, each phase its own skill. Master phase 1 before phase 2, before the full rep. AI tells you which phase needs the most work right now.
Starting discus is mostly about not grooving in habits you'll have to break later. Here's where to start, which phases to learn first, the form errors to recognize before they become permanent, and how to use AI form check from rep one.
Don't try a full rep on day one. discus is a sequence, each phase its own skill. Master phase 1 before phase 2, before the full rep. AI tells you which phase needs the most work right now.
The mistakes beginners make are predictable. The same form errors show up in week 1 of every athlete's discus. The earlier you catch them, the easier the fix, six months in is too late.
Your first month of discus should be on video. Even bad reps. AI gives you the same coaching notes a real coach would, but available immediately, on every rep, not just the ones a coach happened to be watching.
Beginners benefit most from form check, not most experienced athletes, because catching errors early prevents the months of un-grooving later. Film your first reps, get the AI's read, fix what's small while it's small.
Follow up in chat and ask questions. The AI remembers your analysis and speaks the language of discus coaching.
The progression below is conservative. the goal is to groove correct technique before bar height becomes a goal. Every week ends with a video re-test against the previous week to confirm the pattern is sticking.
Hold and grip. Standing throws with light discs. Goal: release off finger.
South-side drill. Half-turn drill. Goal: balance in rotation.
Full rotation at slow speed. Goal: 1.75 turns.
Full throws at competition weight. Goal: power position consistency.
Refine release angle, block leg. Compete.
Speed up rotation, increase release velocity.
These drills come from coaching practice (Dahlman, Petrov-Bubka tradition, Slippery Rock camps). Each card lists the phase it targets, the method, what to watch for, and a prescribed rep volume.
Initial pivot and balance.
Practice the first 90 deg of rotation slowly. Focus on heel pivot.
Losing balance; arm leading.
Power position to release sequence.
From power position, throw without rotation. Focus on hip-chest-arm-finger.
Arming; release angle wrong.
Half-rotation balance and rhythm.
Practice from south-side to power position only. No full rotation.
Rushing rotation.
Firm block.
From power position, drive into a partner's resistance.
Soft block.
Primary sources behind the numbers and methods on this page.
Five common questions about discus that come up in coaching.
A directory of every discus page on the site, from broad analysis tools to specific phase deep-dives. Each entry points to a focused write-up.
Download the app. Film a rep. See what the AI sees. Free first analysis, no card, no account required.