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Diamond Arm Lab
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Features · v0.9 beta

Every tool that's
actually live.

No phantom features. No “coming soon” tiles. These are the eight systems running in beta right now, built on a framework professional baseball has used for years.

See pricing for parents and coaches or read about the athletic trainer behind DAL.

Your card won't be charged until after your 7-day trial ends.

/ 01

ACWR Dashboard

Acute:Chronic Workload Ratio is the framework pro baseball uses to manage pitcher loads. 7-day load divided by 28-day average. Stay near 1.0, spike it, risk climbs. DAL tracks it continuously, colors the zones, and shows the 14-week view at a glance.

◆7-day vs 28-day windows
◆Color-coded risk zones
◆Full-season view
◆Per-player history
ACWR and workload dashboard: arm strain score with safe-zone indicator and total workload chart
/ 02

Session Tracking

Log games, bullpens, long toss, and catch in under 20 seconds. Throw count, distance, intensity (RPE), arm soreness, fatigue, and sleep quality. Works offline at the field and syncs when you reconnect. Every session feeds the ratio.

◆20-second entry
◆RPE · 0 to 10 scale
◆Soreness & sleep log
◆Offline-first PWA
Monthly training calendar with logged sessions marked in green
Day detail with session breakdown and strength work
Track a session screen with long-toss type, warm-up throws, distance, and RPE slider
/ 03

Video Analysis

Upload a pitch from your phone. DAL scores mechanics on stride length, hip-shoulder separation, arm slot consistency, and release point. Frame-by-frame scrubbing. Save clips to the player's profile.

◆AI mechanics scoring
◆Frame-by-frame review
◆Season comparison
◆Save to profile
AI video analysis results with elbow position, hip-shoulder separation, and stride length scores
/ 04

Throwing Programs

Curated by a Former Major League Assistant Athletic Trainer. Return-to-throw progressions, long-toss phases, in-season maintenance, off-season ramps. Each program maps to the player's age and current workload.

◆Return-to-throw
◆Long-toss phases
◆Age-appropriate
◆Hand-built by Matt
Long Toss · Phase 2 · Week 3
Mon60 ft · 25 throws
TueRest
Wed90 ft · 30 throws
ThuRecovery · J-bands
Fri120 ft · 25 throws
SatGame (if available)
SunFull rest
/ 05

Strength Routines

Strength and recovery routines that fit the week. J-bands, wall dribbles, rotator cuff, posterior chain. Each exercise links to a YouTube demo from the exercise library.

◆J-band routines
◆Rotator cuff work
◆YouTube demos
◆Routine builder
Recovery routine · Post-throw
▶
J-band pull-aparts
2 × 15
▶
Reverse throws · J-band
2 × 15
▶
External rot · 90°
2 × 15
▶
Scap wall slides
2 × 15
▶
Sleeper stretch
2 × 15
▶
Cross-body stretch
2 × 15
/ 06

Coach Portal

Whole roster in one view, up to 30 players. Sort by risk. Filter by position. CSV export for game-day staff. Add notes, share with parents, export player histories.

◆Up to 30 players
◆Risk-sorted roster
◆CSV export
◆Parent sharing
Roster · 14U Tigers
6 players tracked
CSV ↓
Reyes, JRHP0.94
Park, MLHP1.42
Diaz, L3B1.08
Chen, RRHP1.61
Alvarez, KCF0.82
Walker, TC1.15
/ 07

SMS Reminders

Parents get a text when the ratio spikes, when recovery lags, or when it's time to log a session. No app required to read. The kid gets reminded to log. The parent gets the data.

◆Spike alerts
◆Log reminders
◆Recovery nudges
◆No app needed
Text thread
Jackson's ACWR is 1.58. Consider a rest day tomorrow before Saturday's game.
DAL · 7:42 AM
Don't forget to log today's bullpen.
DAL · 5:30 PM
/ 08

Recovery Insights

Track soreness, sleep, and perceived recovery alongside workload. DAL surfaces patterns: days of the week the ratio tends to spike, positions with highest loads, recovery time after max-effort outings.

◆Soreness tracking
◆Sleep × load
◆Pattern surfacing
◆Recovery time
Daily arm health tracker with soreness slider, fatigue level, and sleep quality

The Diamond Arm Lab is an excellent tool for throwing athletes. With the ACWR data provided from logged activity, athletes are able to be more informed on what intensity level they should be training each day.

Evan R., Beta user, DAL

Watch the load.
Play the season.

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