Real park film is messy. That’s how the engine gets better.

We’ve been re-running old “failed” analyses on our latest engine, and some still come back invalid. That’s intentional. We’d rather tell you “we can’t sell this grade” than guess your throw type or invent a release you didn’t throw. Strict rules keep coaching consistent. Loose rules make a prettier app and a worse coach.

Real-world disc golf film is messy. Behind-the-thrower angles, discs on the ground, walk-ups, trims that start after the throw — that’s what actually breaks analysis. It’s also the exact data that makes the engine better every day.

If your throw came back Untrusted or “couldn’t lock this,” that wasn’t a sold grade — your free analysis is still there. Film another side-on (waist height, one clean rep, full body). We’re already re-running the misses on our side.

Fastest path to a Trusted grade:
side-on, waist height, one clean rep, full body in frame.

We’re building this to be the form app you’d actually trust with a lesson. Not perfect. Honest. Improving every day.

Stay classy, disc golf.
Kris / DiscTrain

reddit.com
u/DiscTrain — 12 hours ago
▲ 2 r/Discgolfform+1 crossposts

I filmed a side-view backhand. Plant scored 92. Reachback scored 29. The leak was my elbow.

Side-view on a pad. Uploaded the clip. No “pick your throw type.”

It called it a backhand, scored the form 55, and named one leak:

Elbow too low on the reachback → disc swings around me → pull starts weak → wobble later.

Phase scores on that same throw: Reachback 29 · Plant 92 · Pocket 47 · Release 45 · Follow 63.

Brace is fine. The wind-up is the hole. Cue: raise the elbow to about shoulder height and keep it leading the disc. It put ~20–40 ft on the table if I actually do that.

Then estimated body numbers from the video (not a launch monitor): arm speed, disc speed, launch angle, carry.

If the film is garbage it says re-film. It does not invent a pretty wrong score.

https://disctrain.com

u/DiscTrain — 3 days ago
▲ 1 r/u_DiscTrain+1 crossposts

Title: Anyone use video for form feedback with athletes?

I build DiscTrain. Not a coach.

Curious what’s useful in real coaching: form breakdown with phases (plant, pocket, release, etc.), or do you mostly ignore that and just scrub the video yourself?

We’re building a desk for athlete uploads + roster, and form analysis that marks phases when the clip is good enough. Bad phone angle → re-film instead of guessing.

For coaches who already review film — do you want automated phases, or is that overkill?

u/DiscTrain — 14 days ago