One most-severe lesson per primary mistake and court side. Average 5/10.
Track record
Basics — foundation of the game
#1 of 5Proficiency 67.45.4/10 overall
3 sessions · 9 clips analyzed · 2 lessons kept
Movement & court craft
footwork (to the shuttle) · solidknee / lunge · solidhip coil · solidrecovery to base · solidcourt position · solid
Court coverage: not measured yet (calibrate court for coverage)
Technique and mistakes — stroke & shot game
smash: 6/10clear: 5.5/10serve: 5/10
Weakest shot: serve (5/10)
Stroke mechanics
torso · priority ×7shoulder · solidelbow · priority ×2wrist · solidfree arm · solidhead · solidshot action · solid
Issues seen: 0% clean (≥7) · 22% severe (≤4)
Progress: Declining (6/10 → 5/10, −1)
Trend: 08-02 6 → 08-02 5.5 → 08-02 5
Weaknesses
- serve 5/10
- torso × 7
- elbow × 2
Mistakes by area (analyzed)
torso × 7elbow × 2
Advanced — polish & tactics
Consistency 83.7Athletic base 100Court craft 100Repertoire 42.5 (3 shots)
Rating mix: 0 solid · 7 developing · 2 needs work
Tactical errors flagged: 0 (0% of analyzed clips) — lower is better
Focus next
- torso × 7
- elbow × 2
How proficiency is calculated
Score 0–100 from technique (30%), athletic base / footwork-knee-hip (20%), court craft / recovery-position (15%), clean form ≥7 (10%), low severity ≤4 (10%), shot repertoire breadth + weakest shot (10%), and consistency (5%). Official ranks need ≥3 clips analyzed or ≥2 sessions; thinner samples stay Provisional.
clear · torso
centre court sideRating 6/102026-08-02
Mistake: Insufficient coiling through the upper body prior to contact, registering only 8.1° of shoulder-vs-hip rotation.
Fix: Turn the non-racket shoulder toward the shuttle early to fully coil the torso before unwinding into contact.
Why it matters: Lacking proper torso rotation prevents energy transfer from the core into the stroke, forcing reliance on the arm and diminishing shot depth and control.
Drills
- Shadow clear drill focusing on early non-racket shoulder turn and coiling
- High lift overhead shadow swing with torso rotation pause
serve · torso
right court sideRating 4/102026-08-02
Mistake: Excessive torso lean from vertical reaching 35.3° during the serve, exceeding the ideal 0-15° range.
Fix: Maintain an upright posture throughout the entire serving motion.
Why it matters: Bending the trunk significantly off-vertical compromises core stability and alters your contact height, making serve depth and placement inconsistent.
Drills
- Mirror shadow serve drills focusing on keeping the torso upright throughout the stroke
- Stationary high serve drills with conscious core engagement to prevent trunk tilting