Birdie GAiSwing Analysis
6-Iron · Full Swing Analysis

André Rennes

A frame-by-frame review of André's 6-iron swing at Mariners on October 14, hit off the mat from the two-stick station (feet line, ball line and a red cross stick near the ball), with the full ball-flight readout from the range screen. This is the third 6-iron report and the first with screen data since October 6. It closes with simple next steps.

PlayerAndré Rennes (right-handed)
Club6-Iron · report #3
LocationMariners Point Golf Center, Foster City, CA
Footage1 swing · down-the-line + range screen
Session dateOctober 14, 2026

1 Executive summary

Bottom line: his best 6-iron so far. 150 yards total ★, 146 carry ★ and 107 mph of ball speed ★ are all new 6-iron bests, up from 149, 140 and 103 mph. That ball speed is only 2 mph short of the LPGA Tour 6-iron average (109 mph). The launch also came down from 23° to 20°, which is real progress on the first report's main finding. It is still about 3° above the LPGA average (17.1°). The ball peaked at 81 ft (27 yds) and landed at 44°, a soft, playable flight with a small 17-ft fade.

The movement shows two good signs. First, the hips held their depth through impact for the second 6-iron report in a row. Second, the tempo improved to ~2.6:1, his closest yet to the Tour's 3:1. The constant is still there and a little bigger: the head drops about 6.5 inches by impact, compared with about 5 in on report #2.

Strength

Speed and rhythm

New 6-iron bests at 107 mph and 146 carry, hands back at their address spot, hips holding depth, and a 2.6:1 tempo.

Priority 1

Stay tall

Keep the cap on its address line through impact. On Oct 14 the head sank about 6.5 in, the most in his 6-iron reports.

Priority 2

Bring the launch down

Launch dropped from 23° to 20°. A bit more forward shaft lean at impact should move it toward the 17° LPGA window.

2 Ball flight — range screen

Range screen readout
MetricAndré (Oct 14)6-Iron #1 (Oct 6)LPGA Tour avgPGA Tour avg
Ball speed107 mph ★103 mph109 mph127 mph
Club speed (est.)~76–78 mph~75–77 mph78 mph92 mph
Carry146 yds ★140 yds152 yds183 yds
Flat carry144 yds———
Total150 yds ★149 yds——
Launch angle20°23°17.1°14.1°
Apex81 ft (27 yds)87 ft (29 yds)25 yds30 yds
Landing angle44°46°46°50°
Spin— (not on screen)—5,943 rpm6,231 rpm
Curve17 ft (right)11 ft——
Hang time5.6 s5.7 s——
Proximity99 ft53 ft——

The screen has glare and a green tint, but all values are legible. The apex label is partly in shadow and was read as Apex from the screen layout and its ft unit. The unit under flat carry can't be read and is taken as yards. The curve direction comes from a small right-pointing arrow next to 17 ft, which means a fade for a right-hander. Carry (146) is a little longer than flat carry (144), so the landing area sat slightly below the hitting level. The ball rolled about 4 yards. Club speed and spin aren't on the screen. At a typical iron smash factor of ~1.38–1.40, 107 mph of ball speed means about 76–78 mph of club speed, right around the LPGA average (78 mph). Report #2 (Crystal Springs, Oct 18) had no ball data, so it has no column here.

What it means: since report #1, ball speed rose 4 mph and carry rose 6 yards, while launch fell 3°. More speed with less launch is the right direction, because more of the energy sends the ball forward instead of up. The flight is still on the tall side: the apex (27 yds) is 2 yards above the LPGA average even with slightly less ball speed. The total gained only 1 yard because this steeper flight rolled less (4 yds vs 9). A launch closer to 17° should turn some of that height into distance.

3 Timing & tempo — measured from the video

Filmed at 30 frames per second, so each time is accurate to about ±0.03 s. The takeaway starts at 8.30 s (frame 39), the top is at 8.90 s (frame 57), and impact is at about 9.13 s (frame 64).

GroupBackswingDownswingRatio
André (6-iron #3, Oct 14)~0.60 s~0.23 s~2.6:1
André (6-iron #2, Oct 18)~0.53 s~0.27 s~2:1
André (6-iron #1, Oct 6)~0.45–0.60 s~0.23–0.30 s~2:1
André (3-wood #1, Oct 24)~0.50 s~0.30 s~1.7:1
PGA Tour (Tour Tempo, "24/8")~0.80 s~0.27 s3:1

Tour figure: John Novosel, Tour Tempo. If the downswing is off by one frame either way, the ratio moves between ~2.3:1 and ~3:1.

What it means: the downswing (0.23 s) is as quick as in his earlier 6-iron swings. The change is in the backswing: at 0.60 s it is longer than both earlier 6-iron swings, so the ratio moved from ~2:1 to ~2.6:1. This is his closest swing to Tour Tempo for this club, and it came with his best 6-iron ball speed. A longer backswing did not cost him any speed.

4 The reference frame — how this swing was measured

Reference frame
  • Grid: each square is about 5 inches (~46 px at full resolution, 9.22 px per inch). The grid is scaled from his body size in the frame, so treat all distances as ±1 inch.
  • Vertical and horizontal center lines (light green): fixed references for balance, spine and height.
  • Two corner diagonals (green): they cross at the center of the frame and give a fixed perspective scaffold.
  • Depth rays (yellow, dashed): drawn from the vanishing point of the feet-line stick and the ball-line stick, which meet near the horizon close to the ball-line stick. Anything moving along these rays is moving toward the target (into the picture), not sideways. The stick endpoints were read to about ±10 px.
  • Address references: the white line marks the top of the cap and the light-green line marks the back of the head. The red trail is the head's path and the yellow trail is the hands' path, frame by frame.
  • Body points were tracked automatically on every frame (120 frames, 7.0–11.0 s), then checked by eye at each key position.

5 Swing sequence

Nine key positions, filmed down-the-line from behind the hands, from address (8.20 s, frame 36) to finish (10.10 s, frame 93). The target is straight into the picture.

Photo 1 · Addresst 8.20s · frame 36
Photo 2 · Takeawayt 8.60s · frame 48
Photo 3 · Lead arm parallelt 8.67s · frame 50
Photo 4 · Topt 8.90s · frame 57
Photo 5 · Arm parallel (down)t 9.03s · frame 61
Photo 6 · Deliveryt 9.07s · frame 62
Photo 7 · Impactt 9.13s · frame 64
Photo 8 · Releaset 9.20s · frame 66
Photo 9 · Finisht 10.10s · frame 93

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

Clubhead

Opening frames: the sole was shown to the camera. In the clearest close-up, the numeral has its loop at the bottom and a small bar underneath. Read upright against the bar, that is a 6, not an upside-down 9. A second, blurrier close-up shows the same shape. One other crop showed no clubhead and was not used. The ball data (107 mph, 146 carry, 20° launch) also fits his 6-iron. Logged as the 6-Iron with high confidence.

Photo 1 — Address Good

  • Feet parallel to the feet-line stick. The ball sits just outside the ball-line stick, with the red cross stick nearby.
  • Athletic iron posture: knees flexed, arms hanging, top of the cap right on the white address line.
  • Ball on the mat, a fair test of an iron off turf-like contact.

Photo 2 — Takeaway Early dip

  • Hands, arms and club move away together. The hands are already ~17 in from their address spot.
  • The head is already about 5 in lower on the grid. The sinking starts right away.
  • Hips move ~2 in away from the ball, a turn rather than a slide in.

Photo 3 — Lead arm parallel Good width

  • Wide arc: the hands are ~31 in from address, and the wrists are setting on time.
  • The trail knee keeps its flex, and the hips stay ~2 in behind their address line.

Photo 4 — Top Compact

  • A compact top with the shaft well short of parallel. That is a controlled length for a 6-iron.
  • The head rises back to ~2.6 in lower than address, its highest point of the backswing. It is also ~3.3 in toward the ball line (see depth note).
  • Hips ~2 in away from the ball: they turn, they don't slide in.

Photo 5 — Arm parallel (down) Good

  • The hands drop slightly inside the line they went up on (yellow trail).
  • The head starts to sink again (~4.4 in), while the hips hold ~1 in behind address.

Photo 6 — Delivery From the inside

  • The club comes from the inside, with the hands ~15.5 in from their address spot and the arms in front of the chest.
  • The hips still sit ~1 in behind their address line, with no move toward the ball.

Photo 7 — Impact Watch the head

  • The hands return to their address spot (within about half an inch).
  • The head is ~6.5 in lower than at address, more than on report #2 (~5 in).
  • The hips hold their depth (~1 in behind address). This is the second 6-iron report in a row with no early extension.

Photo 8 — Release Full extension

  • Both arms extend down the line and the chest keeps turning.
  • The head is still low (~7.6 in) just after the ball, so the stand-up comes later in the follow-through.

Photo 9 — Finish Excellent

  • Tall and balanced on the lead leg, with the trail foot up on its toe and the chest to the target.
  • Head ~5 in above its address height: he stands fully tall, as in both earlier 6-iron reports.

Overlay — head at address, top and impact

Measure (vs address)TopImpact6-Iron #2, Oct 18 (top / impact)Reading
Head, down~2.6 in~6.5 in~3 in / ~5 inFix the head sinks in the downswing, a bit more than on #2
Head, sideways in the picture~3.3 in~1.6 in~2 in (position not split)Depth? see note
Hips, toward the ball−1.9 in (away)−1.0 in (away)— / heldGood no early extension, second time in a row
Hips, up~0.7 in~0.9 in—Good level base
Hands at impact vs address—~0.5 in—Good back to the same spot

Depth note: from behind, the head's sideways shift (~3.3 in at the top, ~1.6 in at impact) lies partly along the depth rays. That makes it a mix of "toward the ball" and "toward the target", and one camera can't separate the two. A face-on clip of the next swing will settle it (see section 10).

7 Where the 6-iron sits in the bag

Club (best report)TotalCarryBall speedLaunchCurve
Driver · Oct 7241 yds213 yds129 mph16°38 ft
3-Wood · Oct 24200 yds172 yds121 mph10°36 ft
4-Iron · Oct 7183 yds167 yds110 mph20°39 ft
5-Iron · Oct 2169 yds159 yds108 mph19°20 ft
6-Iron · Oct 14150 yds146 yds107 mph20°17 ft (right)
7-Iron · Oct 14147 yds144 yds104 mph22°0 ft

Heads-up: the gaps around the 6-iron are uneven. It carries 13 yards less than the 5-iron (146 vs 159) even with nearly the same ball speed (107 vs 108 mph). It carries only 2 yards more than the 7-iron (146 vs 144), and goes 3 yards farther in total. The 6-iron's higher launch (20° vs 19°) explains part of the gap below the 5-iron. Each club has only one swing with screen data, so a fresh 7-iron report will show whether that 2-yard gap is real.

8 Diagnosis

  1. Speed is up: 107 mph of ball speed and 146 yards of carry are new 6-iron bests. The estimated club speed (~76–78 mph) sits right around the LPGA average, and the hands deliver the club back to their address spot.
  2. Launch is coming down, but not there yet: it fell from 23° to 20°, yet it is still ~3° above the LPGA average (17.1°). The apex (27 yds) is also above the LPGA 25 yds. The hands return to their address spot rather than ahead of it. More forward shaft lean at impact is the likely way to take loft off.
  3. Small fade: 17 ft of curve to the right, a bit more than on report #1 (11 ft). Proximity was 99 ft. With one swing, this isn't a pattern yet.
  4. The head dips ~6.5 inches by impact (~7.6 in just after). The dip starts at takeaway (~5 in), eases at the top (~2.6 in) and sinks again in the downswing. It is the same "sinking" seen on report #2, slightly larger.
  5. Hips hold their depth: they stay ~1 in behind their address line at impact, so there is no early extension for the second 6-iron report in a row.
  6. Tempo ~2.6:1, the best of his 6-iron reports, thanks to a longer 0.60 s backswing with the same quick 0.23 s downswing.

Confidence: high on ball flight (all values legible on the range screen, with the apex label read from the layout and the flat-carry unit assumed to be yards) and on tempo (measured frame by frame, ±1 frame). Confidence is moderate on head and hip distances (grid scaled from body size, ±1 inch) and 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

Use the same camera spot. Keep the top of the cap on the white address line until the ball is gone, for 10 balls.

Feel: "chest stays high, knees keep their flex."

Priority 2 · Lower launch

Hands-ahead hold

Hit 10 half swings and stop just after impact with the hands over the lead thigh, ahead of the clubhead. Then hit 5 full swings with the same feel.

Target on the screen: a launch of 16–18°, near the LPGA 17.1°.

Keep · Rhythm

The 2.6:1 count

Count "back-2-3, down-1" on every swing, with the same unhurried backswing as on Oct 14.

It's his closest 6-iron swing to Tour Tempo, and it came with his best ball speed.

Keep · Depth

Pockets on their line

Whatever the hips did on Oct 14, keep it: the back pockets stay on their address line through impact.

This is the second 6-iron report in a row with no early extension.

10 Limitations & next capture

Next capture: Next capture, to sharpen the reference frame: (1) the same down-the-line spot, plus (2) a face-on clip at chest height, square to the feet stick, (3) 3–5 balls for an average, (4) André's height, to lock the grid scale, and (5) a straight-on photo of the range screen to cut the glare.