Diamond Nine Athletics
D9
About
This app analyzes pitching data from Rapsodo or Trackman sessions, providing insights into velocity, spin, and movement. It offers tools for athletes to track progress and for coaches to manage training plans and rosters.
What's New in Diamond Nine Athletics
1.7
August 31, 2026
New in this update: • Film Analysis — draw right on any clip. Pause on a frame and mark it up with a pen, straight lines, or the angle tool to break down mechanics, then step frame-by-frame or slow it down. • Fixed password reset — the reset code from your email now works reliably. • Fixed missing pitches — every pitch in a session (including Fastballs) now shows up in the session view, not just in your totals. • Compare Film now fills the screen — both clips play in two full, stacked boxes, easy to see side by side. • Additional fixes and improvements. Thanks for training with Diamond Nine!
MoreFAQ
What data sources does Diamond Nine Athletics use?
Diamond Nine Athletics can import data from Rapsodo or Trackman sessions. It also allows for CSV exports from bullpen sessions to be parsed instantly.
What pitching metrics can I track with Diamond Nine Athletics?
You can track max velocity, average velocity, spin rate, spin efficiency, induced vertical break, horizontal break, vertical approach angle, extension, and release height for every pitch type.
Can coaches manage multiple athletes with Diamond Nine Athletics?
Yes, coaches can manage their entire roster from one place, build week-by-week training plans, and bulk-assign drills to multiple athletes.
Is Diamond Nine Athletics available on Android devices?
Currently, Diamond Nine Athletics is only listed as supported on iPhone devices. Please check the app store for the most up-to-date platform compatibility.
How often is Diamond Nine Athletics updated?
The latest version is 1.5, and the app was last updated on August 20, 2026. This indicates a recent update, suggesting active development.
What is the age rating for Diamond Nine Athletics?
Diamond Nine Athletics has an age rating of 12+, making it suitable for teenagers and older users.
Does Diamond Nine Athletics have ads?
No, Diamond Nine Athletics does not contain advertisements. It is a completely ad-free experience for users.
How does Diamond Nine Athletics handle user data privacy?
Diamond Nine Athletics is private by design, ensuring that your data remains yours. Only the data you choose to share with your coach is visible to them.
