André Rennes

1 Executive summary

2 Ball flight — range screen

Metric	André (Nov 4)	Oct 2 (#1)	LPGA Tour avg	PGA Tour avg
Ball speed	106 mph	108 mph	112 mph	132 mph
Club speed (est.)	~76–77 mph	~77–80 mph	79 mph	94 mph
Carry	156 yds	159 yds	161 yds	194 yds
Flat carry	155 yds	—	—	—
Total	166 yds	169 yds	—	—
Launch angle	19°	19°	14.8°	12.1°
Apex	70 ft (~23 yds)	72 ft (24 yds)	23 yds	31 yds
Landing angle	38°	40°	45°	49°
Curve	19 ft left	20 ft	—	—
Hang time	5.3 s	5.4 s	—	—
Proximity	25 ft	not shown	—	—

No ★ in this table: every number is within a few units of report #1, which stays the best (169 total, 159 carry). The 3D view also shows an unlabeled 159 above the flag and a 195 distance sign on the virtual range. Neither is shot data and neither is used here. Spin and club speed aren't on the screen, so club speed is an estimate from ball speed. The ball could not be tracked in the video (30 fps, the ball is gone between two frames), so there is no start-direction reading. Slow-motion at 120 or 240 fps would fix that.

What it means: The launch angle (19°) is 4° above the LPGA average and 7° above the PGA Tour, yet the apex only equals the LPGA average and the ball lands at 38°, 7° shallower than the LPGA's 45°. With ball speed 6 mph lower, that mix is common, and about 10 yards (166 vs 156) came from roll. Spin isn't on the screen, so the cause can't be confirmed. The flight is very consistent with report #1, which is itself good news. The gentle 19 ft curve to the left is small.

3 Timing & tempo — measured from the video

30 frames per second, so each time is accurate to about ±0.03 s. The takeaway starts at ~30.87 s (frame 101), the top is at 31.50 s (frame 120) and impact is at about 31.74 s (frame 127).

Tour figure: John Novosel, Tour Tempo. One frame either way moves the ratio between ~2.4:1 and ~3.2:1. The 8-iron row is from the same session and shows a very long backswing.

What it means: The backswing grew by about 0.10 s and the downswing got about 0.05 s quicker, which puts the ratio inside the 2.5–3.5:1 good band for the first time with this club. The 0.23 s downswing is Tour-like in speed, and the longer backswing gives it time to build.

4 The reference frame — how this swing was measured

• Grid and scale: each square is about 5 inches. It is scaled from the 4 x 4 ft hitting mat (13.75 px per inch). His height wasn't provided, so treat distances as ±1 inch.
• Center lines: a vertical line through the centre of his stance and a horizontal line at belt-buckle height. They cross at the belt buckle at address and are fixed references for balance, spine and height. A dashed ball line marks the depth of the ball.
• Diagonals and depth rays: the two corner-to-corner diagonals add a perspective scaffold. The depth rays (yellow, dashed) are the mat edges extended to the horizon, as no alignment sticks or feet line were visible. Movement along them is toward the target, not sideways.
• Address references: the white cap line (head height), the dashed waist line (waist height), the dashed light-blue lines (shoulder and knee height at address) and the dashed red tush line, the back of the hips at address. At impact the hips stayed on it (about −0.3 in). The red trail is the head path and the yellow trail is the hands' path.
• Tracking: body points were tracked automatically on 225 frames (27.5–35.0 s) and checked by eye at each key position. The camera stayed still: the background moved less than 0.1 px.
• Rotation: shoulder and hip turn are visual estimates from the down-the-line frames, about ±10–15°. X-factor is shoulder turn minus hip turn at the top.

5 Swing sequence

Nine key positions, filmed down-the-line from behind the hands. 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 club was shown to the camera at 41.5, 42.0 and 42.5 s. The sole reads "5" and it is logged as the 5-Iron (high confidence).

Photo 1 — Address Good

• Tall, athletic posture: knees flexed, arms hanging, hands just ahead of the ball.
• The cap line, tush line and shoulder and knee lines are all set from this frame. No sticks were on the mat, so the feet line can't be checked.

Photo 2 — Takeaway Early dip

• One-piece start: the hands are only ~2.3 in from their address spot.
• The head has already sunk ~3.1 in and moved ~1.5 in toward the ball. That is the first sign of the dip. The hips are quiet (~1 in back).

Photo 3 — Lead arm parallel Good base

• Hands are ~12.6 in from address. The arms are wide and the club is on the way up.
• The hips stay steady (~1.3 in away from the ball, ~0.3 in up). The head is ~3.8 in down.

Photo 4 — Top Big turn

• Shoulders turn about 85° and hips about 40°, so the X-factor is about 45°. That is a strong coil.
• The head has come back up to ~2.2 in down and sits ~3.0 in toward the ball (see depth note).
• Hands are high, ~24.9 in from address, and the club leaves the top of the frame, like the high-hands top in report #1.

Photo 5 — Arm parallel (down) Good

• The hips start back toward address (from −1.1 in to −0.5 in): the lower body leads.
• The head is ~3.0 in down and ~2.9 in toward the ball.

Photo 6 — Delivery Solid

• Hands are back within ~0.7 in of their address spot. That is excellent.
• The hips hold at about −0.2 in, so there is no early extension.

Photo 7 — Impact Watch the head

• Head ~3.8 in lower and ~2.0 in toward the ball: both are in the Watch band. Hands are ~1.9 in from the address spot, also Watch.
• Hips stay back: ~−0.2 in toward the ball, the rear of the hips ~0.3 in inside the tush line, and a rise of only ~0.8 in.
• The hips are about 35° open and the shoulders about 20° open, so the hips lead the shoulders.

Photo 8 — Release Head sinks

• Just after the ball the head is ~5.0 in lower than at address while the chest keeps turning.
• The hands are ~3.3 in from address and the hips still hold (~0.3 in back).

Photo 9 — Finish Excellent

• Tall and balanced on the lead leg, trail foot up on its toe, club wrapped behind the shoulders.
• The head ends ~2.9 in above its address height. Held, as in the earlier reports.

Overlay — head at address, top and impact

Depth note: From behind, the head's ~2–3 in shift sits partly along the depth rays, so it mixes "toward the ball" and "toward the target". One camera can't split the two. A face-on clip of the next swing will settle it (see Limitations).

7 Where the 5-iron sits in the bag

Heads-up: the 5-iron sits in a healthy spot: 11 yards of carry behind the 4-iron (156 vs 167) and 10 yards ahead of the 6-iron (156 vs 146). The 5-iron's ball speed (106 mph) is only 1 mph under the 6-iron's (107), so the carry gap comes mostly from loft. A few more mph on the 5-iron would widen it. The 6-iron and 7-iron are only 2 yards apart in carry, a gap to look at in their next reports.

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's the screen shown right after it.
• The ball could not be tracked in the video (30 fps), so the start direction vs the target line is unknown. Slow-motion at 120 or 240 fps would show it.
• Spin and club speed aren't on the screen: club speed is estimated from ball speed (smash ~1.38–1.40) and nothing is said about spin.
• Distances come from a grid scaled to the hitting mat. His real height would make the scale exact. The shoulder and hip turns are visual estimates (±10–15°).
• From behind, depth (toward the target) mixes with sideways motion. That's exactly what the depth rays flag.

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