Clear — Feng (Sample)

Feng (Sample) · Clear

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Phase Summary

Source Low-angle phone footage

FPS 59.9

Resolution 1728×3072

Frames 0–150

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Phase-by-phase observations 8 phases

Body Rotation

Torso is rotated approximately 90 degrees relative to the net, presenting a side-on profile. The non-racket shoulder (left) is pointing forward towards the net.

Weight Distribution

Weight is loaded onto the rear foot (right foot). The player appears to be on the ball of the foot or flat-footed with knees slightly bent.

Hip / Shoulder

Hips and shoulders are aligned in a closed position relative to the target, creating a 'C' shape coil. There is significant separation between the hip line and shoulder line.

Racket Arm

Shoulder: Shoulder is abducted, arm raised. Elbow is lifted high, roughly at shoulder level.
Elbow Angle Estimate: ~140 degrees (slightly flexed)
Wrist: Neutral to slight extension, holding the racket steady.
Racket Head Position: Racket head is held up and back, pointing generally upwards but starting to drop behind the head.
Racket Face Angle: Face is angled slightly open, perpendicular to the incoming shuttle path.

Lower Body

{'foot_position': 'Staggered stance, right foot back, left foot forward.', 'knee_bend': 'Slight bend in both knees, maintaining an athletic ready posture.', 'jump_or_transfer': 'No jump yet; weight is static on the rear leg preparing for transfer.'}

Notes

The preparation shows a classic side-on stance suitable for a clear. The racket is already being drawn back (windup initiation) while the body is loading.

Body Rotation

Body remains side-on. Torso begins to rotate slightly more towards the net as the swing initiates.

Weight Distribution

Weight remains primarily on the rear (right) foot.

Hip / Shoulder

Shoulders are beginning to uncoil. The separation between hips and shoulders is decreasing slightly as the upper body starts to turn.

Racket Arm

Shoulder: Abduction continues. The elbow is lifting higher.
Elbow Angle Estimate: ~135 degrees
Wrist: Wrist is cocking back (extension), preparing for the snap.
Racket Head Position: Racket head has dropped significantly behind the head, pointing downwards towards the floor.
Racket Face Angle: Face is now pointing somewhat downwards/backwards due to the drop.

Lower Body

{'foot_position': 'Feet remain staggered.', 'knee_bend': 'Knees are bending deeper, indicating a load phase.', 'jump_or_transfer': 'Player is loading energy into the legs; no jump yet.'}

Notes

This frame captures the 'drop' phase of the windup. The racket head dropping below the elbow creates the necessary leverage for the whip-like action required for a deep clear.

Body Rotation

Side-on orientation maintained. The torso is coiled tightly.

Weight Distribution

Maximum weight on the rear (right) foot. The player is fully loaded.

Hip / Shoulder

Maximum separation achieved. Hips are facing the net, while shoulders are turned away, creating a strong elastic potential.

Racket Arm

Shoulder: Fully abducted. External rotation is at its peak.
Elbow Angle Estimate: ~130 degrees (high elbow)
Wrist: Maximally extended (cocked), wrist is bent back sharply.
Racket Head Position: Racket head is at its lowest point, well behind the body and below the waist level.
Racket Face Angle: Face is pointing almost directly down or slightly backwards.

Lower Body

{'foot_position': 'Staggered stance stable.', 'knee_bend': 'Deep knee bend on the rear leg, storing elastic energy.', 'jump_or_transfer': 'The player is poised to explode forward; the center of gravity is low and back.'}

Notes

This is the 'loaded' position. The depth of the racket drop and the degree of shoulder external rotation suggest a high potential for power generation for a clear.

Body Rotation

Still side-on, but the transition to forward rotation is imminent.

Weight Distribution

Weight is still on the rear foot, but the player is shifting weight forward.

Hip / Shoulder

Hips begin to rotate forward, leading the shoulders. The 'X-factor' stretch is visible.

Racket Arm

Shoulder: Shoulder is externally rotated to maximum capacity.
Elbow Angle Estimate: ~125 degrees
Wrist: Wrist is fully cocked, ready to snap forward.
Racket Head Position: Racket head is trailing far behind the body, creating a long lever arm.
Racket Face Angle: Face is angled downwards/backwards.

Lower Body

{'foot_position': 'Feet planted firmly.', 'knee_bend': 'Knees are bent, absorbing the load.', 'jump_or_transfer': 'Initiation of weight transfer from rear to front foot begins.'}

Notes

The racket is positioned perfectly for the 'whip' effect. The lag behind the body indicates good timing and technique for generating racket head speed.

Body Rotation

Torso is rotating rapidly towards the net. Shoulders are opening up.

Weight Distribution

Weight is actively transferring to the front (left) foot.

Hip / Shoulder

Hips have rotated forward, pulling the shoulders with them. The body is uncoiling.

Racket Arm

Shoulder: Internal rotation has begun. The arm is accelerating forward.
Elbow Angle Estimate: ~110 degrees (elbow is leading)
Wrist: Wrist is beginning to uncock (flex forward).
Racket Head Position: Racket head is moving forward, still lagging behind the hand but rising.
Racket Face Angle: Face is transitioning from pointing down to pointing up.

Lower Body

{'foot_position': 'Front foot is planting, rear foot is pushing off.', 'knee_bend': 'Front knee is bending to absorb the landing/transfer.', 'jump_or_transfer': 'Active weight transfer is occurring. The player is driving forward.'}

Notes

The swing is accelerating. The body rotation is leading the arm, which is crucial for a powerful clear.

Body Rotation

Torso is facing mostly forward/side-on. Rotation is peaking.

Weight Distribution

Weight is now predominantly on the front (left) foot.

Hip / Shoulder

Shoulders are nearly square to the net, having completed the rotation.

Racket Arm

Shoulder: Full internal rotation. Arm is extending fully.
Elbow Angle Estimate: ~170 degrees (near full extension)
Wrist: Wrist is snapping forward (flexion), delivering the final power.
Racket Head Position: Racket head is at the highest point of the swing, contacting the shuttle.
Racket Face Angle: Face is angled upwards, directing the shuttle high and deep.

Lower Body

{'foot_position': 'Front foot is planted, rear foot is lifting slightly.', 'knee_bend': 'Front knee is bent, supporting the body weight.', 'jump_or_transfer': 'Weight transfer is complete. The player is grounded.'}

Notes

Contact point is high and in front of the body, ideal for a deep clear. The racket face angle suggests a trajectory that will send the shuttle to the backcourt.

Body Rotation

Torso is continuing to rotate forward, facing the net.

Weight Distribution

Weight is fully on the front (left) foot.

Hip / Shoulder

Shoulders are facing the net, rotation is decelerating.

Racket Arm

Shoulder: Arm is following through, beginning to relax.
Elbow Angle Estimate: ~150 degrees (starting to fold)
Wrist: Wrist is relaxed, following the momentum.
Racket Head Position: Racket head is descending, moving across the body.
Racket Face Angle: Face is now pointing downwards/across the body.

Lower Body

{'foot_position': 'Front foot planted, rear foot coming down.', 'knee_bend': 'Knees are straightening as the player recovers.', 'jump_or_transfer': 'Recovery phase begins.'}

Notes

The follow-through is smooth and continuous. The racket crosses the body, indicating a full swing rather than a short punch.

Body Rotation

Body is facing the net, rotation has stopped.

Weight Distribution

Weight is balanced on the front foot, recovering to ready position.

Hip / Shoulder

Hips and shoulders are square to the net.

Racket Arm

Shoulder: Arm is relaxed, hanging down.
Elbow Angle Estimate: ~90 degrees (folded)
Wrist: Neutral.
Racket Head Position: Racket head is low, near the non-racket hip.
Racket Face Angle: Face is pointing downwards.

Lower Body

{'foot_position': 'Feet are coming together or adjusting for recovery.', 'knee_bend': 'Knees are slightly bent, athletic stance.', 'jump_or_transfer': 'Recovery movement initiated.'}

Notes

The follow-through is complete and natural. The racket has wrapped around the body, consistent with a full-power clear stroke.

Detailed professional comparison 8 phases

Overall Summary

Player B (Shi Yuqi) likely produces a deeper and more powerful clear. The jump clear utilizes the full kinetic chain (legs -> jump -> core -> arm), generating more racket head speed and allowing contact at a higher point, which translates to better shuttle velocity and depth. Player A has excellent technique for a standing clear, but it lacks the explosive potential of the jump clear.

Key Differences

•{'aspect': 'Jump vs. Grounded Technique', 'description': 'Player B (Shi Yuqi) performs a jump clear (scissor kick), while Player A (feng) performs a standing/grounded clear with weight transfer.', 'which_player_is_better': 'B', 'why': 'The jump clear allows for a higher contact point, steeper trajectory, and greater power generation from the legs, making it a more offensive and effective clear in high-level play.'}
•{'aspect': 'Contact Point Height', 'description': "Player B contacts the shuttle at the apex of a jump, significantly higher than Player A's standing contact point.", 'which_player_is_better': 'B', 'why': 'Higher contact point allows for a flatter or steeper trajectory, pushing the opponent further back and reducing their reaction time.'}
•{'aspect': 'Racket Drop Depth', 'description': "Player A's racket drop appears extremely deep (below waist), while Player B's is behind the back. Player A's might be exaggerated by the low camera angle.", 'which_player_is_better': 'neither', 'why': "Both show sufficient lag for power. Player A's looks deeper but might be an artifact of the wide-angle low lens. Player B's is biomechanically efficient for a jump."}

Preparation Player B's preparation includes the leg drive for a jump clear, which allows for a higher contact point and more power generation from the legs. Player A is preparing for a standing clear, which is stable but less powerful. ▾

Windup 1 The jump (Player B) allows the player to meet the shuttle at a higher point and use the leg drive for power. Player A's grounded windup relies entirely on torso rotation and arm whip. ▾

Windup 2 Player B's position allows for a 'smash-like' trajectory even on a clear, due to the height. Player A's position is good for a flat or high clear but lacks the vertical advantage. ▾

Windup 3 Player B's timing at the apex of the jump is critical for an attacking clear. Player A is timing the weight transfer for a standing clear. ▾

Hitting 1 Player B's racket lag is described as 'textbook', indicating very high racket head speed potential. Player A also has good lag. ▾

Hitting 2 Player B's higher contact point allows for a steeper, more powerful clear (attacking clear). Player A's contact is good for a defensive or neutral deep clear. ▾

Hitting 3 Player B's aggressive follow-through indicates a high-power shot. Player A's indicates a controlled deep clear. ▾

Followthrough Player A's recovery is faster/safer. Player B's jump clear is powerful but risks slower recovery if the landing isn't balanced (though Shi Yuqi is elite, so likely fine). ▾

Feng (Sample) · Clear

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