Coach Mulligan
AI Golf Coach — In Your Sim & On the Course
Who He Is
Coach Mulligan is a veteran golf instructor. Thirty-plus years on the lesson tee. He's worked with beginners who couldn't hit the broad side of a barn and single-digit players chasing scratch. He's seen every swing fault there is, and he's learned that the fix is almost never what the golfer thinks it is.
He's older, patient, and unhurried. He doesn't rush to fill silence. He listens more than he talks. When he does speak, it matters — he's earned that economy of words through decades of watching what works and what doesn't. He's warm but not soft. He'll tell you the truth, but he'll do it in a way that makes you want to come back tomorrow.
How He Coaches
Mulligan leads with feel, observation, and the right question at the right time. The numbers are there when they help make a point. They're not the point.
- One thing at a time. He gives you one change, one drill, one feel. Not three things that compete for your attention.
- He remembers. Past sessions, drills you've worked on, breakthroughs you've had. He references them naturally — "Last time your hips were stalling. Let's see if that chair drill stuck."
- He reads the room. When you're frustrated, he simplifies. When you're overwhelmed, he stops coaching mechanics entirely and just talks. When things are clicking, he stays quiet and lets you work.
- He asks questions. "What did that one feel like?" and "Where'd you feel the difference?" — he coaches by drawing out awareness, not just dispensing information.
- Dry humor, sparingly. The kind that makes you smile without derailing the lesson. "Well, the net's still standing, so we're making progress."
Teaching Philosophy
Coach Mulligan's coaching is grounded in biomechanics-based coaching methodology. Drills reference expert coaching — not social media influencer content.
He has deep biomechanical knowledge, but he doesn't lead with it. He leads with observation and feel. Numbers support his point. They are not his point.
5-Phase Coaching Curriculum
Coach Mulligan guides you through a structured progression. Each phase focuses on specific mechanics with metric-based graduation requirements:
Phase 1: Setup
Posture, spine tilt, knee flex, shoulder alignment at address. Getting the setup right is foundational — poor setup propagates through the entire swing.
Phase 2: Rotation
Hip turn, shoulder turn, X-factor separation. The gap between shoulder and hip rotation is one of the strongest correlates of clubhead speed.
Phase 3: Timing
Backswing-to-downswing tempo rhythm. Expert-level swings average a 3:1 ratio. Deviations indicate rushing or casting.
Phase 4: Sequence
Correct firing order: hips → shoulders → arms. Most amateurs fire arms before hips ("over the top"), which Coach Mulligan identifies and corrects.
Phase 5: Scoring
Lag retention into the downswing. Expert-level swings maintain 90°+ at the halfway-down position. Losing lag early costs distance and consistency.
What He Measures
Coach Mulligan's coaching is grounded in real swing data. On the desktop platform, that means over 40 biomechanical metrics extracted from a multi-camera setup. On iPhone, he tracks over 20 metrics — including spatial pose analysis and hand tracking on iPhone 12 and later. Either way, he's watching the same fundamentals:
- Setup: spine tilt, knee flex, shoulder alignment, stance width
- Rotation: hip turn, shoulder turn, X-factor separation
- Timing: tempo ratio, kinematic sequence (correct firing order)
- Power: lag angle, wrist bow, release timing
- Stability: head sway, posture maintenance through the swing
- Overhead (desktop): precise rotation measurement, stance alignment, ball position, hip slide vs rotation
Each metric is compared against expert-level benchmarks so Mulligan can tell you exactly where you stand — and what to work on next. On mobile, he also tracks fatigue across a session and warns you when your mechanics start breaking down.
Root-Cause Diagnosis
When something's off, Mulligan doesn't just name the symptom — he digs into why. Not enough hip rotation? He'll figure out whether it's your stance, your trail knee, or a mobility issue. Then he gives you a specific drill for the actual root cause, not a generic fix.
Two Training Modes Desktop
Standard Training
Encouraging and forgiving. A few bad swings won't hold you back. Designed for beginners, casual practice, and general improvement.
Advanced Training
Data-driven and demanding. Graduation requires consistency, not just capability — you need to reproduce good mechanics swing after swing. Designed for serious practice and competitive preparation.
Two Ways to Get Coached (Desktop)
On the desktop platform, Coach Mulligan adapts to your setup:
- Camera only — Ask Coach: After analyzing a swing, send it to Coach Mulligan with one click. He reviews your biomechanics, identifies faults in priority order, and recommends drills. Review an entire session at once for trend analysis and overall assessment. No launch monitor required — coaching is based on your body mechanics alone.
- With launch monitor — Live Coaching: Connect a launch monitor (via GSPro/OpenConnect) and Coach Mulligan delivers automatic coaching after every shot. Ball flight data and swing analysis combined for complete D-plane diagnosis.
Both modes feed into the same 5-phase curriculum with long-term coaching memory. The drills Coach Mulligan recommends link directly to your personalized training plan.
Where Mulligan Lives
- Desktop: Over 40 metrics with multi-camera spatial analysis, AI vision coaching (Coach watches your swing video), predictive analysis, and structured curriculum. The full coaching experience in your sim bay.
- Mobile: Voice caddie on the course through AirPods (hands-free), club recommendations from your actual bag, range mode swing analysis with real-time metrics, analytics dashboard with trend charts, 5-phase coaching plan with graduation tracking, and fatigue detection. Everything runs on-device — no internet required.