Upload your data. See exactly how your game has changed over weeks, months, and seasons.
From the Garmin app: Session history → Export CSV. Drag and drop it here. Get your Precision Index? in 30 seconds.
Every metric is defined, filtered, and explained in plain English. You'll never stare at a number wondering what it means.
One number for your overall strike quality across every club. Weighted, filtered, reliable.
precision_index: 45/100Average of your 5 best carries per club. This is what you're capable of when everything clicks.
hero_carry: 211 ydYour 20th percentile carry becomes the mishit line. Anything below it gets filtered out, so your averages reflect real swings only.
mishit_rate: 22.3%Find the holes in your bag. Distance thresholds flag gaps and overlaps between clubs.
gaps: 2 problems, 4 overlapsBlends carry consistency, directional accuracy, and smash stability into one score per club, out of 100.
composite: carry + direction + smashAfter every practice, see exactly what changed. Carry deltas, mishit shifts, new hero records, score movement.
delta: +3.2 yd, -4% mishitsEvery shot in a filterable, sortable table. Search by club, session, or metric.
642 shots · 18 clubs · 11 sessionsBreaks down every bad shot by type: duffs, tops, shanks, poor contact. Per club, per session.
penalty_yards: 9,680Upload one CSV or fifty. Auto-dedup, club mapping, session grouping. Same export you already download.
garmin_r10 → structured dataEvery mishit costs you a stroke. QuantiGolf counts them: 34 mishits over 100 swings means 34 penalty strokes. See exactly what bad contact is costing your game.
efficiency_loss: strokes + yards lostNew features ship regularly. Here's what's coming:
Every chart is built from your real shot data. No stock graphics, no filler.
This is real analysis from a sample bag. Upload your CSV and see your own numbers.
Sample data — your numbers will differ
| Club | Carry | Gap |
|---|---|---|
| Driver | 218yd | — |
| 3 Wood | 195yd | 23yd |
| 5 Wood | 178yd | 17yd |
| 4 Hybrid | 168yd | 10yd ⚠ |
| 5 Iron | 155yd | 13yd |
| 6 Iron | 144yd | 11yd ⚠ |
| 7 Iron | 132yd | 12yd |
| 8 Iron | 120yd | 12yd |
| 9 Iron | 108yd | 12yd |
| PW | 96yd | 12yd |
Amber rows highlight gaps under 12 yards (potential overlap)
12 shots filtered as mishits (P20 method) — not counted in your averages
Export from the Garmin Golf app. Same CSV you're already downloading.
Upload one file or fifty. Auto-dedup, club mapping, and session grouping.
Dashboard, club detail, error analysis, gap analysis, shot explorer — all instant.
QuantiGolf doesn't just show you data — it tells you what it means. Every metric, every card, every chart has a plain-English explanation built in.
Every card in QuantiGolf has an i tooltip that explains what you're looking at and why it matters. No jargon without context.
Other apps collect your launch monitor data and charge you a monthly subscription to see it. We think that's backwards — it's your data, you hit those shots, and understanding them should always be free. The analytics are free. We have a few optional, targeted reports available for purchase only if and when you want something specific to take to the course.
Carry distances, P20 mishit filtering, gap analysis, error analysis, confidence carry, session trends, Precision Index, Strike Score — everything. No session limits, no paywalled metrics.
Composite strike scores, error profiles by club, longitudinal improvement arcs, penalty stroke calculations, cohort benchmarking. Analytics nobody else even offers — included at no cost.
When you want something specific and actionable — a fitting report, a coaching plan, an A/B test of your new shaft — that's where we charge. A small one-time fee for something tangible you take to the course.
QuantiGolf is actively developed. These features are coming in the next few months.
After every upload, get a personalized summary of what happened, what improved, and what to focus on next.
coming soonMulti-player view for high school and university golf programs. Manage rosters, track team progress, assign practice.
in developmentQuantiGolf tells you which clubs to hit and how many shots to take, based on where your data has gaps.
coming soonAnnotate individual shots with tags and notes. Filter by tag in Shots Explorer. Build your own shot taxonomy.
coming soonQuantiGolf is device-agnostic by design. Support for additional launch monitor CSV formats is on the way.
coming soonSee how your Precision Index, mishit rate, and carry distances compare to anonymized golfers at your level.
coming soonCreate an account. Upload your first CSV. See what your data actually says about your game.
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