Birdie GAiSwing Analysis
6-Iron · Full Swing Analysis

André Rennes

A frame-by-frame review of the 6-iron swing from the November 2 session at Mariners, hit off natural turf and filmed down the line from behind the hands. There was no range screen this time, so the ball numbers are estimates built from his earlier 6-iron reports. This is the 10th and last report in the 6-iron series. It uses the reference frame (grid, center lines, diagonals, head-height and waist-height lines) and closes with simple next steps.

PlayerAndré Rennes (right-handed)
Club6-Iron · report #10
LocationMariners Point Golf Center, Foster City, CA
Footage1 swing · down-the-line · natural turf, no range screen
Session dateNovember 2, 2026

1 Executive summary

Bottom line: a calm, balanced 10th 6-iron report. With no range screen, there is no measured ball flight, so no personal best to flag. From his 3 earlier 6-irons with screen data, this swing is estimated at about 136 yds total (~132 carry), with ~99 mph of ball speed and ~71 mph of club speed. These are estimates, not measurements. For comparison, the LPGA Tour 6-iron averages 109 mph ball speed and 152 yds carry. The tempo of 2.6:1 (0.60 s back, 0.23 s down) is in the good band and close to the 3:1 Tour Tempo.

The best part is the lower body. The hips stayed back through impact (about 1.0 in away from the ball, rear of the hips about 0.7 in inside the tush line), so there is no early extension. The finish is tall and balanced. The constant is still the head: it sits about 5.8 in lower than at address at impact. The hips also rise about 1.8 in, and the hands come back about 1.5 in off their address spot. Both are on the watch list.

Strength

Hips back, tempo and finish

Hips stay on the tush line at impact, the tempo is 2.6:1, and the finish is tall and held.

Priority 1

Stay tall

The head is about 5.8 in lower at impact. Keep the cap near its address line so the club bottoms out in the same place each time.

Priority 2

Quiet the rise

Hips rise about 1.8 in and the hands return about 1.5 in off their address spot. Keep the knee flex until the ball is gone.

2 Ball & club speed — estimated from the video

MetricEstimateRangeSource
Club speed~71 mph68–74 mphEstimated
Ball speed~99 mph95–103 mphEstimated
Carry~132 yds127–138 ydsEstimated
Total~136 yds130–141 ydsEstimated

Not measured: no range screen in this clip. Your 3 earlier 6-Iron reports with range-screen data, adjusted by this downswing time (at most ±2%). Confidence: moderate on club speed and yardage, low to moderate on ball speed. Not logged as a personal best.

What it means: A photo of the range screen or a 240 fps slow-motion clip makes these numbers more precise.

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 17.43 s, the top is at 18.03 s, and impact is at about 18.26 s.

GroupBackswingDownswingRatio
André (6-iron #10, Nov 2 session)~0.60 s~0.23 s~2.6:1
André (6-iron #3, Oct 14)~0.60 s~0.23 s~2.6:1
André (6-iron #9, Oct 28, club to confirm)~0.53 s~0.20 s~2.7:1
André (9-iron, Oct 28)~1.23 s~0.20 s~6.2:1
PGA Tour (Tour Tempo, "24/8")~0.80 s~0.27 s3:1

Tour figure: John Novosel, Tour Tempo. One frame either way moves the ratio between about 2.4:1 and 2.9:1.

What it means: the downswing (0.23 s) matches his best 6-iron swing, and the backswing is a calm 0.60 s. The ratio is in the good band (2.5–3.5:1). It is the same 2.6:1 as his Oct 14 swing, so it is steady rather than a new best.

4 The reference frame — how this swing was measured

Reference frame
  • Grid: each square is about 5 inches (scale 6.82 px per inch). It is scaled from his body size because his height was not given, so treat distances as ±1 inch.
  • Center lines and diagonals: the gold center lines cross at the belt buckle at address, and the vertical one runs through the center of his stance. A dashed horizontal line marks the ball line. The two bronze corner diagonals cross at the same point and give a fixed perspective scaffold.
  • Depth rays: none were drawn this time. No alignment sticks are visible and there is no mat, since this was natural turf. The two vertical streaks near the ball are divot marks, not sticks. Depth (toward the target) therefore can't be separated from sideways motion.
  • Address references: the white line is the cap (head height). The dashed light-blue lines mark shoulder and knee height. The belt-buckle line is the waist height. The dashed red tush line is the back of the hips at address. The red trail is the head path and the yellow trail is the hands' path.
  • Tracking: body points were tracked automatically on 240 frames, then checked by eye at each key position. The camera stayed still: the background moved less than 0.2 px.
  • Ball: it could not be tracked. At 30 frames per second the ball is gone between two frames right after impact. Slow motion (120 or 240 fps) would show the start direction.

5 Swing sequence

Nine key positions, filmed down the line from behind the hands, with the target away from the camera. Address is at 17.30 s (frame 99), impact at 18.26 s (frame 128) and the finish at 19.06 s (frame 152).

Photo 1 · Addresst 17.30s · frame 99
Photo 2 · Takeawayt 17.70s · frame 111
Photo 3 · Lead arm parallelt 17.76s · frame 113
Photo 4 · Topt 18.03s · frame 121
Photo 5 · Arm parallel (down)t 18.16s · frame 125
Photo 6 · Deliveryt 18.20s · frame 126
Photo 7 · Impactt 18.26s · frame 128
Photo 8 · Releaset 18.33s · frame 130
Photo 9 · Finisht 19.06s · frame 152

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

6 Position-by-position biomechanics

Photo 1 — Address Good

  • Photo 1 — Address. Balanced, athletic posture with knees flexed and arms hanging under the shoulders.
  • Ball on natural turf. The cap line, tush line and belt-buckle lines are set here as the reference for every later frame.

Photo 2 — Takeaway Head already sinking

  • Photo 2 — Takeaway. Hands, arms and club leave together. The head is already about 4.8 in lower and ~2.3 in toward the ball.
  • Hips move about 2 in away from the ball and rise ~0.8 in. The hands are about 9 in from their address spot.

Photo 3 — Lead arm parallel Good width

  • Photo 3 — Lead arm parallel. Wide arc, with the hands about 21 in from their address spot and hips ~2.4 in away from the ball.
  • The head is about 5.8 in lower here, the deepest point of the backswing.

Photo 4 — Top Strong turn

  • Photo 4 — Top. Shoulders turned about 85° and hips about 40°, so the X-factor is about 45° (±10–15°).
  • The head is about 3.9 in lower and ~2.6 in toward the ball. It came back up a little from Photo 3.
  • The hips are ~2.5 in away from the ball. They turned and did not slide in.

Photo 5 — Arm parallel (down) Good

  • Photo 5 — Arm parallel (down). The hips start back toward the target (~1.2 in away from the ball) and the hands drop inside their backswing line (yellow trail).
  • The head is about 5.1 in lower and ~3.6 in toward the ball, its biggest forward shift.

Photo 6 — Delivery Solid

  • Photo 6 — Delivery. The arms are in front of the chest and the hands are about 8.5 in from their address spot, closing in.
  • Hips are ~0.8 in away from the ball, still holding their depth.

Photo 7 — Impact Watch the head

  • Photo 7 — Impact. Head about 5.8 in lower than at address (Fix) and ~1.8 in toward the ball (Good).
  • Hips hold their depth: ~1.0 in away from the ball, and the rear of the hips is ~0.7 in inside the tush line. Hips rise about 1.8 in (Watch).
  • Hands are ~1.5 in from their address spot (Watch). Hips are about 35° open and shoulders about 15° open.

Photo 8 — Release Full extension

  • Photo 8 — Release. Both arms extend toward the target and the chest keeps turning.
  • The head is about 6.5 in lower than at address, the lowest point of the swing, and the hands are ~9 in from their address spot.

Photo 9 — Finish Excellent

  • Photo 9 — Finish. Tall and balanced on the lead leg with the trail foot up on its toe. The head ends about 4.6 in higher than at address, so he stood fully up.
  • Held, as in his earlier reports.

Overlay — head at address, top and impact

Measure (vs address)TopImpact6-Iron #9 (top / impact)Reading
Head, down~3.9 in~5.8 in~3.6 / ~4.2 inFix the dip is bigger than in #9
Head, toward the ball~2.6 in~1.8 in— / ~1.6 inGood under 2 in at impact
Hips, toward the ball−2.5 in (away)−1.0 in (away)— / −0.1 inGood no early extension
Rear of hips vs tush line—−0.7 in (inside)— / on the lineGood stays on the line
Hips, rise (waist height)~0.4 in~1.8 in— / ~1.2 inWatch a little standing up
Hands vs address spot—~1.5 in— / ~0.5 inWatch close, not exact
Shoulder turn (about, ±10–15°)~85°~15° open~85° / —Info full turn
Hip turn (about, ±10–15°)~40°~35° open~40° / —Info hips lead the shoulders
X-factor (shoulders minus hips)~45°—~45° / —Info good coil
Tempo~0.60 s back~0.23 s down~0.53 / ~0.20 sGood 2.6:1

Depth note: with no sticks or mat in the frame, no depth rays could be drawn. From behind, the head's ~1.8–3.6 in shift toward the ball is a mix of "toward the ball" and "toward the target", and one camera can't split the two. A face-on clip will settle it.

7 One pattern, the whole bag

ReportHead down at impactHips toward ball at impactTempoWhat it shows
6-Iron #10 · Nov 2 session~5.8 in−1.0 in (stays back)2.6:1Head sinks, hips quiet
6-Iron #9 · Oct 28 (club to confirm)~4.2 in−0.1 in2.7:1Smallest dip yet
6-Iron #3 · Oct 14~6 in~0.9 in back2.6:1Personal-best swing, same dip
6-Iron #2 · Oct 18~5 inHolds depth~2:1Hips better than his 7-iron

The link: across his 6-iron reports the head sits about 4–6 in lower at impact, so the dip is a habit, not a one-off. The hips mostly hold their depth, which was not the case in his 7-iron. Fixing the head height is the next gain, and the lower body is already doing its job.

8 Diagnosis

  1. No measured ball data: the estimate (about 136 yds total, ~132 carry, ~99 mph ball speed) comes from his earlier 6-iron screens. It is not a measurement and not a personal best.
  2. The head dips about 5.8 in by impact, starting at the takeaway (~4.8 in). Fix, and the same pattern as his earlier 6-iron reports.
  3. Hips stay back: ~1.0 in away from the ball and ~0.7 in inside the tush line at impact. No early extension.
  4. Hips rise about 1.8 in and the hands return about 1.5 in off their address spot. Both are Watch items and likely linked to the head dip.
  5. Good coil: shoulders ~85°, hips ~40° and an X-factor of ~45°, with the hips opening ~35° at impact, ahead of the shoulders (~15°).
  6. Tempo 2.6:1 (0.60 s / 0.23 s) is in the good band and close to Tour Tempo 3:1.
  7. Finish: tall, balanced and held.

Confidence: high on tempo and key-frame timing (measured frame by frame); moderate on head and hip distances (grid scaled from body size, ±1 inch); moderate on rotation angles (visual estimates, ±10–15°); moderate on the estimated yardage and club speed, and low to moderate on the estimated ball speed; low on the toward-ball vs toward-target split (needs a second angle).

9 Next steps — keep it simple

Priority 1 · Stay tall

Cap-on-the-line check

Same camera spot. Keep the top of the cap close to the white address line until the ball is gone, for 10 balls.

Feel: "chest over the ball, knees keep their flex." A steady head height makes contact more repeatable.

Priority 2 · Quiet the rise

Belt-buckle height check

Film 5 swings and watch the belt-buckle line. Keep the buckle at its address height through impact and let the hands return to their address spot.

Less rise means the hands and club meet the ball from the same place each time.

Keep · Hips back

Back pockets on the line

Whatever he did with the hips on this swing: keep it. Back pockets stay on the tush line through impact.

Hips ~0.7 in inside the tush line is a real strength.

Keep · Tempo

Back-2-3, down-1

Keep the same count and the same quiet finish hold.

It repeats his best 6-iron tempo of 2.6:1.

10 Limitations & next capture

Next capture: Photograph the range screen right after the shot, film in slow motion (120 or 240 fps) so the ball can be followed, add a face-on clip at chest height, and show the club sole clearly. 3–5 balls give an average, and André's height would lock the grid scale.