How to improve your badminton smash using phone video
A harder smash isn't always a better one. Video shows you whether your smash is steep, early and well chosen, which is what wins points at club level.
Updated 07 Oct 2026 · by the Skorvi team
Speed vs steepness
Club players chase smash speed. But a fast, flat smash from the back line is easy to block. What wins points is a steep smash, hit early, aimed at the body or a sideline, followed by a fast recovery. Video is the easiest way to see all four.
How to film your smash
- Technique angle: phone side-on to you, at about chest height, 4–6 m away, in slow motion if your phone supports it. Film 10–15 smashes from a feeder lifting to you.
- Match angle: phone behind the court, centred and raised, recording normally. This shows where smashes land and what happens next.
The 6 checkpoints to review frame by frame
- Preparation: side-on with the racket up early, before the shuttle starts dropping. Late preparation is the number-one cause of weak smashes.
- Non-racket arm: up and pointing at the shuttle. It helps balance and timing and drives the trunk rotation.
- Contact point: high and in front of your body. Pause on the frame of impact. If the shuttle is above or behind your head, you'll hit flat or into the net.
- Forearm rotation: power comes from a relaxed grip, then rotation of the forearm (pronation) and a late squeeze of the fingers, not a stiff arm swing.
- Weight transfer: your body moves forward through the shot, often with a scissor-kick leg change in a jump smash.
- Recovery: where you are 1 second after contact. If you're still landing or watching, the reply will beat you.
Track the smash with numbers, not feel
| Metric | How to measure on video | What good looks like |
|---|---|---|
| Smash winner % | Smashes that end the rally ÷ total smashes | Rising over weeks; above ~25% is strong at club level |
| Smash error % | Smashes into the net or out ÷ total | Under ~15% |
| Landing zone | Where smashes land: body, sideline or middle | Mostly sidelines and body, not the middle |
| Smash position | Where you were standing when you smashed | Mostly mid-court to front of the rearcourt |
| Follow-up | What happened to the next shot | You're moving forward to kill a weak return |
These percentages are rough guides for recreational play, not official benchmarks. The trend over time matters more than the number.
Common smash faults and drills
- Smashing into the net: contact is too far in front, or you're bending forward. Drill: 20 half-smashes aimed at the doubles service line.
- Flat smash: contact is too low or behind you. Drill: shadow the movement, reaching up to touch a hanging target with the racket face.
- Shoulder pain: all arm and no rotation. Slow down, film side-on, and work on the turn and forearm rotation first.
- Smashing from too deep: you're forcing it. Play a clear or drop and wait for a shorter lift.
Get these stats from a phone video
Shots, errors, winners and a heatmap, automatically.
Join the waitlistFAQ
How can I increase my badminton smash power?
Prepare earlier, hit higher and in front, use forearm rotation and a relaxed-then-tight grip, and transfer your weight forward. Film side-on to check each part.
Is smash speed or angle more important?
For club players, angle and placement usually matter more. A steep smash to the body or sideline beats a faster flat one.
Can I measure smash speed with my phone?
Roughly, yes. Some apps estimate smash speed from high-frame-rate video. For match improvement, smash winner and error rates are often more useful.