GaianSwing Analysis
Golf Swing Analysis Report

André Rennes — 5-Iron Full Swing

A frame-by-frame biomechanical review of a filmed 5-iron shot, with the ball-flight readout from the range screen and benchmarks against the PGA and LPGA Tours and his other irons. Includes a diagnosis, priorities and a 4-week practice plan.

PlayerAndré Rennes
Club5-Iron · report #1
LocationMariners Point Golf Center, Foster City, CA
Footage1 swing · down-the-line view
Session dateOctober 2, 2026

1 Executive summary

Bottom line: a solid, efficient 5-iron. At 108 mph of ball speed it went 169 yds total (159 carry), only 2 yds short of the LPGA Tour carry average, with an estimated club speed about the same. The curve was a modest 20 ft, the tightest of his long irons so far. The finish is balanced and held, as always.

The flight is still too high and too flat at landing: a 19° launch against 12° for the PGA Tour, and a 40° landing against 43–47°. So the ball rolled 10 yds after landing. The swing shows his familiar patterns in a milder form: the head drops about 3 inches by impact, the top is high and arm-driven, and the tempo is ~1.9:1.

Strength

Efficiency & control

A near-LPGA carry for his speed, only 20 ft of curve, and a full, held finish.

Priority 1

Lower, steeper flight

Hands ahead at impact to take loft off: launch from 19° toward 14–16°, landing above 43°.

Priority 2

Head height & tempo

Keep the cap level through impact and stretch the backswing toward a 3:1 rhythm.

2 Strike data — Mariners Point session

Read from the range's ball-tracking screen, filmed at the end of the video. This is one recorded shot, so treat it as a snapshot, not an average.

Range screen readout

Screen capture from the video. Final values after the ball came to rest (the total counts up from 168 to 169).

MetricAndréReading
Total distance169 yds10 yds of roll
Carry159 ydsEfficient for the speed (flat carry 157)
Ball speed108 mphEst. club speed ~77–80 mph*
Launch angle19°High for a 5-iron
Apex (max height)72 ft (24 yds)Normal
Landing angle40°A bit shallow, so it runs
Hang time5.4 s—
Curve20 ft (≈6 m)Modest; direction not shown
Proximity to target—Not shown on screen

*Club speed isn't shown on the screen. It's estimated from ball speed ÷ a typical long-iron smash factor of 1.36–1.40.

How it compares (TrackMan published averages, 5-iron)

MetricAndréLPGA Tour avgPGA Tour avg
Club speed~77–80 mph (est.)79 mph94 mph
Ball speed108 mph112 mph132 mph
Launch angle19°14.3°12.1°
Max height24 yds25 yds31 yds
Landing angle40°43°47°
Carry159 yds161 yds194 yds

Figures from the classic TrackMan PGA and LPGA Tour averages tables (5-iron).

Why the LPGA row matters: his speed and carry sit right on the LPGA average, so the engine is fine. The gap is shape. LPGA players launch about 5° lower and land about 3° steeper at the same speed. That's the difference between a 5-iron that stops near the pin and one that runs to the back of the green.

Across his irons (ball data)

ClubSessionTotalCarryBall speedLaunchLandingCurve
4-IronOct 7183 yds167 yds110 mph20°37°39 ft
5-IronOct 2169 yds159 yds108 mph19°40°20 ft
6-IronOct 6149 yds140 yds103 mph23°46°11 ft

The gapping story: 4-iron to 5-iron is only 14 yds total and 2 mph of ball speed, while 5-iron to 6-iron is 20 yds. The 4-iron isn't adding much over the 5-iron yet. That's typical when a long iron launches high and lands shallow. Lower launch would spread the two clubs apart.

3 Swing sequence

Nine key positions from the video, filmed down-the-line from behind at Mariners Point.

P1 Addresst 8.63s
P2 Takeawayt 8.97s
P3 Lead arm parallelt 9.10s
P4 Topt 9.33s
P5 Transitiont 9.43s
P6 Deliveryt 9.53s
P7 Impactt 9.60s
P8 Releaset 9.70s
P10 Finisht 10.10s

P-numbers follow the standard 10-position swing model. The video runs at 30 fps, so timestamps are accurate to about ±0.03 s. The impact frame is the last one with the ball on the mat; in the next frame it's in the air.

4 Position-by-position biomechanics

P1 — Address Good

  • An athletic posture: he tilts from the hips with flexed knees, and the arms hang naturally.
  • Alignment sticks for the target line and ball position are a good habit, so keep them.
  • Reference point: note the top of the head and the cap brim here. The overlay below measures against them.

P2 — Takeaway Good

  • The arms, hands and club move away together, and the lead arm stays straight.
  • The lower body stays quiet.

P3 — Lead arm parallel Good width

  • The wrists set and the arc stays wide.
  • The chest is turning, and the trail knee holds its flex.

P4 — Top of backswing High hands

  • The hands finish high, above the head, with the club short of parallel. It's the same "high hands" top as his 6-iron and 4-iron.
  • Part of the height comes from lifting the arms rather than turning the chest.
  • The trail leg straightens somewhat, which lets the hips over-turn.
  • The head is already about 2 inches lower than at address.

P5 — Transition Quick

  • The arms start down promptly from the high top.
  • Tempo: the backswing takes about 0.53 s and the downswing about 0.28 s, a ratio near 1.9:1. Skilled players sit around 3:1. It's the same ratio as in every report so far.

P6 — Delivery On plane

  • The shaft drops in from the inside with the hands at the trail hip, and there's no over-the-top move.
  • The head keeps lowering toward the ball.

P7 — Impact Key issue

  • The head arrives about 3 inches lower and about 1.5 inches closer to the ball than at address (see the overlay below).
  • With the body sinking, the hands protect the strike by adding loft. That fits the 19° launch. Shaft lean can't be measured down-the-line; a face-on video would confirm it.
  • On the plus side, the hips are open and the arms are extended.

P8 — Release Free

  • The arms extend through, and the chest keeps rotating toward the target.
  • The body begins to rise after impact, a rebound from the dip.

P10 — Finish Excellent

  • Tall and balanced, with the chest facing the target, the trail foot up on its toe and the weight on the lead side.
  • He holds it for over a second. That's the constant across all his reports.

Overlay — head height, address vs impact

Head height at address and impact

The white line marks the top of the head at address and the gold line marks the cap brim at address. By impact the whole head sits below both lines. The camera didn't move: the fence poles stay in place. Inches are estimated from head size, so treat them as ±1 inch.

5 Diagnosis — why the 5-iron flies high and runs

  1. A high, arm-lifted top and a quick (~1.9:1) transition leave little time for the lower body to lead.
  2. The head drops about 3 inches by impact, and the hands react by adding loft to protect the strike.
  3. Result: a 19° launch and a 40° landing, so the ball rolls 10 yds instead of stopping.
  4. Same pattern, milder dose: his Oct 7 driver and 4-iron showed a 4–5-inch dip. On this Oct 2 swing it's about 3 inches, and the curve (20 ft) is half of the 4-iron's.

Confidence: high on the screen numbers, the tempo and the head movement, which are measured. It's moderate on the link between head dip and added loft, because shaft lean can't be seen down-the-line.

6 Fixes & drills (in priority order)

Priority 1 · Loft

Towel-behind-the-ball drill

Lay a folded towel about 6 inches behind the ball. Hit 5-irons without touching it.

Forces a ball-first strike with the hands ahead: lower launch, steeper landing.

Priority 1 · Loft

Hold-off punch shots

Hit three-quarter 5-irons with the hands finishing at chest height, ahead of the clubhead. Aim for a launch under 16° on the screen.

Teaches forward shaft lean through impact.

Priority 1 · Head height

Phone line check

Film from this same spot. Put tape on the phone screen at the top of the head at address, and check it stays at the tape through impact.

One fix for the whole bag: driver, 4-iron and 5-iron all show the dip.

Priority 2 · Backswing

Turn-to-the-top drill

Cross the arms over the chest and turn until the lead shoulder is under the chin, then add the club with the same feel and lower hands at the top.

Replaces arm lift with chest turn.

Priority 2 · Tempo

3:1 tempo with a metronome

Rehearse "back-2-3 / down-1" with a tempo app. Start with half swings, then build to full.

Every report so far measures ~2:1, so this is the bag-wide habit to change.

Keep

Hold-the-finish rule

Hold every swing in the finish for a three-count.

Protects the balance he already owns.

7 4-week practice plan

WeekFocusSession (≈50 balls)
1Ball-first strike15 towel-drill shots · 15 hold-off punches · 10 full 5-irons, logging launch and landing · phone line check on 5 swings
2Head height + turnTurn-to-the-top rehearsals · 20 shots at 80% with the phone line check · 10 punches under 16° launch
3TempoMetronome rehearsals · 20 full 5-irons at 3:1 · 10 4-irons with the same tempo, to check the gap between them
4Retest10 5-irons at Mariners Point, logging total, carry, launch, landing and curve, plus a new down-the-line video

Targets to track on the screen

Launch angle: 19° → 14–16°

Landing angle: 40° → 43°+

Total distance: keep 165+ yds with less roll

Curve: 20 ft → under 15 ft

The targets are practical goals for his speed, not tour standards. Refine them after the week-4 retest.

8 Limitations & next capture

For the next session: film face-on and down-the-line from 3–4 m away, using slow motion (120–240 fps) if possible. Photograph the screen after 5–10 shots.