André Rennes

1 Executive summary

2 Ball flight — range screen

Metric	André · Oct 14	Report #3 (Oct 14)	Report #1 (Oct 6)	LPGA Tour avg	PGA Tour avg
Ball speed	107 mph ★	107 mph	103 mph	109 mph	127 mph
Carry	146 yds ★	146 yds	140 yds	152 yds	183 yds
Flat carry	144 yds	144 yds	—	—	—
Total	150 yds ★	150 yds	149 yds	—	—
Launch angle	20°	20°	23°	17.1°	14.1°
Apex	81 ft (27 yds)	81 ft	87 ft	25 yds	30 yds
Landing angle	44°	44°	46°	46°	50°
Curve	17 ft right	17 ft right	11 ft	—	—
Hang time	5.6 s	5.6 s	5.7 s	—	—
Proximity	99 ft	99 ft	53 ft	—	—

★ = best 6-iron figure in the logbook. Here each one ties report #3, as it is the same swing. Club speed and spin are not on the screen. At a typical 6-iron smash of ~1.38–1.40, 107 mph of ball speed means about 76–78 mph of club speed, right at the LPGA average (78 mph). The ball could not be tracked on video: at 30 fps it is gone between two frames right after impact. Slow-motion filming (120 or 240 fps) would fix that.

What it means: The speed is close to the LPGA average (107 vs 109 mph), but the carry is 6 yards short (146 vs 152). The launch is about 3° higher than the LPGA average, and the landing angle is 2° shallower (44° vs 46°), with only a 4-yard roll-out. The ball is climbing a bit too much for the speed it has. A lower, more penetrating flight is the likely way to the next few yards. The 17 ft of right curve is small.

3 Timing & tempo — measured from the video

30 frames per second, so each time is accurate to about ±0.03 s. The backswing starts at 8.30 s (frame 99), the top is at 8.90 s, and impact is at about 9.13 s.

Tour figure: John Novosel, Tour Tempo. One frame either way moves the ratio between about 2.2:1 and 3:1.

What it means: This is his best 6-iron tempo and it sits inside the 2.5–3:1 good band. The whole swing is a little quicker than the Tour model (0.83 s start to impact vs ~1.07 s), but the shape of the rhythm is right: a longer backswing and a short, fast downswing.

4 The reference frame — how this swing was measured

• Scale: the grid is scaled from his body size in the frame, because his height was not given. Each square is about 5 inches (about 51 px, at 10.23 px per inch). Treat all distances as ±1 inch.
• Vertical and horizontal center lines: the vertical line runs through the center of his stance (between the feet) and the horizontal line runs through the ball line. They are fixed references for balance, spine tilt and distance to the ball.
• Corner diagonals: the two corner-to-corner lines cross at the center of the frame and give a fixed perspective scaffold for depth.
• Depth rays: the dashed yellow lines are the two ground sticks and the mat edges, extended to the horizon. Movement along these rays is going toward the target (into the picture), not sideways.
• Head and waist height: the white line is the cap line (head height at address) and the orange dashed line is the waist line. The red trail is the head path and the yellow trail is the hands' path, frame by frame.
• Tracking: body points were tracked automatically on every frame (210 frames, 5.0–12.0 s) and checked by eye at each key position. The camera stayed still: the background moved less than 0.2 px. Shoulder and hip turn are visual estimates (about ±10–15°).

5 Swing sequence

Nine key positions, filmed down-the-line from behind the hands at about hip-to-chest height. The target is straight into the picture.

Photos are numbered in the order they happen in the swing. The frames follow the standard swing positions.

6 Position-by-position biomechanics

Club check

The clubhead sole is shown at 15.5–18.0 s. It reads 6 with a bar under the digit, high confidence. The bar sits under the digit, so it is a 6 and not an upside-down 9. The result also fits: 146 carry and 150 total match his 6-iron best, and a 9-iron cannot outcarry his 7-iron (144). Logged as the 6-Iron. There is no audio in this clip.

Photo 1 — Address Good

• Feet set along the feet-line stick, ball on the mat, arms hanging with the hands just ahead of the ball.
• Cap line and waist line are set here as the references for every later frame.

Photo 2 — Takeaway Head dips early

• Hands, arms and club leave together; the backswing starts at frame 99, and the hands are about 9.7 in from their address spot.
• Head already reads about 4.7 in lower and ~2.6 in toward the ball line. Hips are ~1.8 in away from the ball and ~1.2 in up.

Photo 3 — Lead arm parallel Steady base

• Hands about 23 in from address with the arc wide.
• Hips stay ~1.9 in away from the ball: they turn and do not slide in. The head is still ~4.7 in down.

Photo 4 — Top Good turn

• Shoulders turned about 85° and hips about 45°, so the X-factor is about 40° (±10–15°).
• Head is only ~2.2 in below address here, its best height of the swing. Hips are ~1.7 in away from the ball and ~0.6 in up.

Photo 5 — Arm parallel (down) Head sinks again

• Hands come down about 26 in from address, and the head drops back to ~4.1 in below its address height.
• Hips are ~1.1 in away from the ball and almost level (~0.1 in up), a good sign for the base.

Photo 6 — Delivery Solid

• Hands are within ~4.5 in of their address spot and the club is coming in from the inside.
• Hips stay ~0.9 in back. Head is ~5.1 in down and ~1.9 in toward the ball.

Photo 7 — Impact Watch the head

• Hands return to within ~0.6 in of their address spot. Hips stay back (~0.9 in away from the ball), so there is no early extension.
• Head is ~5.9 in lower than at address (~1.5 in toward the ball), and the waist is ~1.0 in higher. Hips are ~35° open and shoulders ~20° open.

Photo 8 — Release Full extension

• Both arms extend down the line and the chest keeps turning. The head reaches its lowest point here, ~6.8 in below address, and the hands are ~7.9 in from their address spot.

Photo 9 — Finish Excellent

• Tall and balanced on the lead leg with the trail foot up on its toe. The head has come up to about 4.4 in above its address height.
• Held, as in every report.

Overlay — head at address, top and impact

Depth note: from behind, the head's shift "toward the ball" (about 1.5–2.8 in) sits partly along the depth rays, so it mixes moving toward the ball with moving toward the target. One camera cannot split the two. A face-on clip of the next swing will settle it. The rotation numbers are visual estimates from small frames (about ±10–15°), so the small gap between this report and #3 (hip turn 45° vs 40°) is within that error.

7 Where the 6-iron sits in the bag

Heads-up: the 6-iron carries only 2 yards more than the 7-iron (146 vs 144) and totals just 3 more (150 vs 147), even though both were hit in the same Oct 14 session. The ball speed is 3 mph higher (107 vs 104) and the launch is only 2° lower (20° vs 22°). The gap up to the 5-iron is wide: 13 yards of carry (159) for only 1 mph more ball speed. So the 6→7 gap is almost closed and the 5→6 gap is large. Lowering the 6-iron launch toward the tour window should open the 6→7 gap.

8 Diagnosis

9 Next steps — keep it simple

10 Limitations & next capture

• One swing is a snapshot. The ball readout matches this swing, as it is the screen shown right after it. It is the same swing and screen as report #3, so it adds no new ball-flight data point.
• Spin and club speed are not on the screen, so club speed is estimated and the launch reading is inferred from launch and apex. The ball could not be tracked on video at 30 fps.
• Distances come from a grid scaled to his body in the frame. His real height would make the scale exact.
• From behind, depth (toward the target) mixes with sideways motion. That is exactly what the depth rays flag.
• Shoulder and hip turn are visual estimates from small frames, about ±10–15°.

Next capture: Next capture, to sharpen the reference frame: (1) the same down-the-line spot, but in slow motion (120 or 240 fps) so the ball can be followed, (2) a face-on clip at chest height, square to the feet stick, (3) 3–5 balls for an average, and (4) André's height, to lock the grid scale.