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50100150you · 190 yd out

Golf intelligence for GSPro

One shot.
Fifty things
you didn't see.

Birzo reads the invisible game under every shot on your sim — and finds strokes inside the swing you already have. Scroll.

Browse the founder's real account→

the real app, months of data accumulated

One shot · 190 to the pin

Your stock draw. Flushed.

Plenty of height, starting on your line, curving in — coming down right at the green. Exactly the shot you pictured.

It kept curving.
Then it kept going.

The wind rode your spin — the curve accelerated. The green is firm and falls away — it released. 17 left, 16 long. Nothing wrong with the swing.

Fifty things
shaped that shot.

Standing over the ball, you can hold maybe three.

Two things you didn't account for when you picked target and club.

Neither needed a better swing. Both needed a better pick.

The third thing? You.

Not the shot you remember — the shot you're likely to hit.

Over the ball, your brain remembers the best shot you've ever hit with that club. Birzo remembers all of them.

Further right.
One club less.

You read the wind — not the wind riding your draw spin. The curve accelerated. Land it short of the flag and the hill brings it home. Same swing.

Pin-high.

Same swing. Same bounce. A different pick — that's where the strokes were hiding.

You just keep playing.
It keeps learning.

Play GSPro exactly as you do today. Every session sharpens the read on your game — what to practice, which club to pull, how to play the next round. The more you play, the more intelligence in your corner.

You're one of the first.

Free in beta, and the free tier is forever. Five-minute setup, then all you do is play — your data shapes what Birzo becomes.

By joining, you agree to receive texts from Birzo about your beta access. Standard message and data rates may apply. See our Privacy Policy.

Not ready? Browse the founder's real account first →

What's in your corner

A team behind you — packed into an app. The pros carry a caddie, a stats team, and a strategist. Yours is built from every shot you hit.

01 · The goldmine

Playing GSPro with Birzo builds deeper data than a tour pro gets from tournament golf.

That sounds like a stretch — it isn't. On tour, cameras and lasers track where each ball finishes, with launch numbers on a handful of shots. Your sim sees the entire life of every shot, end to end:

  • The swing and the strike — the full launch-monitor layer — club, face, path, ball.
  • The world around it — wind, lie, slope, elevation, the course itself.
  • Everything after it lands — every bounce and roll, and the physics that made them — a broadcast never sees that.
  • 400+ fields worth of data — across your shots, sessions, and rounds — a scorecard keeps ten.
  • And without Birzo, almost none of it gets banked — a score and a handful of stats survive — the rest of your most valuable golfing resource is dropped as you play.
ball_speedback_spinside_spinspin_axislaunch_vlacarry_distancetotal_distancepeak_heightdescent_angleofflineflight_time_sFairwayGIRclub_speedsmash_factorclub_pathface_to_targetangle_of_attackdynamic_loftclosure_ratespeed_at_impactYardssurface_liedistance_to_pinpin_elevationslope_lateral_degbounce_forcematerial_hitending_surfacewater_hitHoleParPenaltieswind_speedwind_directionwind_cross_mphelevationpin_gradient_degselected_clubuser_shot_typeintent_tagis_gimmemishit_typesg_categoryPuttsscore_to_parsg_totaltee_setholes_playedScoreTotalsession_kindshot_countdurationcourse_keyslope_ratinggreen_speedhandicap_indexclub_lofthandednessHandicapBALL FLIGHTCLUB DELIVERYCOURSE + LIECONDITIONSINTENT + TAGSYOUR ROUNDS + HOLESYOUR SESSIONSCOURSESYOUR BAG + YOUone shot
one swing, exploded into everything the sim saw · the full estate → 400+ fields across rounds, sessions, courses, clubs, and you · the ringed ten are all a scorecard keeps

The catch

Raw, it's a mountain no golfer would climb.

Uncataloged, it's unusable — and a chatbot will still happily “analyze” it into confident answers with no statistical footing. The overconfidence is the trap.

02 · The machine

Birzo does what no golfer would.

  • Banks every shot as you play — cataloged the moment it lands — rounds, practice, every club, every lie.
  • Cleans it until it's analyzable — months of grunt work, done for you: bad reads caught, gaps closed, junk thrown out.
  • Understands your golf — intent inferred — the club you pulled, the shot you were trying to hit — and each club's signature learned.
  • Checks it like a statistician — benchmarked against scratch, tour, or your level; nothing's real until it survives the fluke test.
  • Hands you the golf — findings priced in strokes: where you're leaking, where practice pays. The instruction stays yours.
Read the founder's live report→

13 confirmed · 1 strong signal · 1 forming · 3 on the horizon — 18 findings tracked

read from 2,974 shots across 34 rounds

Imagine what it finds with three years of your data.

the founder's live report sample

Your game in one look

Who you are as a golfer, and your whole game priced vs your level — disaster swings (a full stroke gone in one swing) the biggest closable

deepens your approach story

Your approach leak is two-sided: Push-slice and Hook, not one stock miss.

−1.53 strokes gained per round

across 190 shots · chance it's a fluke: about 1 in 2.7 billion

deepens your approach story

Severe curves are the engine underneath your 150–200-yard approach leak.

−1.52 strokes gained per round

across 224 shots · chance it's a fluke: about 1 in 23 billion

the tree hit tee slice hole costdeepens your tee-ball story

Tree contact marks the costly tail of this golfer’s tee-slice pattern.

−0.53 strokes to par

across 15 shots · chance it's a fluke: about 1 in 51

the tree hit tee slice hole costdeepens your tee-ball story

Tree contact marks your costliest tee-shot trouble—not Slice shape alone

−0.26 strokes to par

across 28 shots · chance it's a fluke: about 1 in 11

deepens your tee-ball story

A Push-slice that is also a pop-up looks like your most expensive tee pattern.

−0.12 strokes to par

across 24 shots · chance it's a fluke: about 1 in 76

That's 5 of 18 tracked findings

The full report carries all 13 confirmed — plus a strong signal, a forming read, and three on the horizon.

Keep reading the full report→

live · read-only · no sign-up needed

The big picture

your whole game, priced — before the findings underneath it

Off the tee

You have enough driver speed for your level, but wide dispersion makes the tee ball unreliable. Your stock shape favors the fade side, with right trouble showing up most often.

Approach

You bring enough iron speed for your level, but you do not convert it into enough greens or close chances. The main pattern is front-to-back control, with a high, spin-heavy flight and too many finishes short.

Short game

You save par more often than your level should from the lies and distances you face. Sand remains costly per shot even though your bunker save rate beats the level mark, so the result is better than the underlying leave quality.

Putting

You're a major plus putter, especially from 6–15 ft, and you also avoid three-putts better than your first-putt distances suggest. Your assertive pace creates long misses, but it is producing makes without adding much scoring damage.

← closable strokesyour levelstrokes ahead →
Confirmed— held up under every checkdeepens your approach story

Your approach leak is two-sided: Push-slice and Hook, not one stock miss.

−1.53 strokes gained per round

190 shots · vs same round-approach mix without the severe-curve tail

The 150–200-yard band is still the main approach priority, but the shape pattern underneath the wider approach game runs both ways. Hook, Push-slice and Pull-hook appear on about 24% of round approaches; without that severe-curve tail, the approach game gives back 1.53 strokes a round. The exact share inside 150–200 yards still needs a clean band-only split, so use this as the mechanism priority rather than assuming every long-approach miss comes from it.

Push-slice approaches−0.96
Hook approaches−0.81
Pull-hook approaches−0.41

strokes per round from the costly approach shapes

Worth knowing: The 1.53-stroke estimate covers approaches from all distances, so it is not the cost of the 150–200-yard band by itself.

What to do with it: Prioritize the severe-curve tail ahead of trying to tidy every approach shape equally.

The precise claim

Replacing Hook, Push-slice and Pull-hook round approaches with the rest of this golfer's approach mix would recover 1.53 strokes per round.

Looking at: Round approaches with Hook (starts within ±2° of target and curves left at least 10°), Push-slice (starts more than 2° right and curves right at least 10°), or Pull-hook (starts more than 2° left and curves left at least 10°), for this right-handed golfer.

How sure are we?

Found by sweeping your game for segments that stand apart from your own baseline, priced against same round-approach mix without the severe-curve tail and the pattern held in every re-check; the odds it's random noise are about 1 in 2.7 billion.

The raw numbers

Shots analyzed190
Chance it's a flukeabout 1 in 2.7 billion (p = 3.71432218315704e-10)
Held up in re-checks100%
Measured instrokes gained, per shot
Confirmed— held up under every checkdeepens your approach story

Severe curves are the engine underneath your 150–200-yard approach leak.

−1.52 strokes gained per round

224 shots · vs other 150–200-yard approaches

The broad distance-band problem becomes much more specific: the severe-curve tail is the part to prioritize, not every swing from 150–200. Those shapes make up a minority of the band but carry most of the recoverable damage; without them, the band plays far closer to your normal approach level.

All severe curves−1.52
Push-slice−0.55
Hook−0.52

recoverable strokes per round inside the 150–200-yard band

Worth knowing: That yardage band can involve different clubs and lies, so the best practice target is the clubs and situations producing the severe curves—not every 150–200-yard swing.

What to do with it: Make the severe-curve tail the first approach priority; the rest of the distance band is not equally costly.

The precise claim

Severe-curve approaches from 150–200 yards cost 2.30 strokes per round, and replacing them with the rest of that band would recover 1.52 strokes per round.

Looking at: Round approaches starting 150–200 yards out with Hook, Slice, Push-slice, Pull-hook, Pull-slice, or Push-hook shape classes; severe curve means at least 10° of spin tilt

How sure are we?

Found by sweeping your game for segments that stand apart from your own baseline, priced against other 150–200-yard approaches and the pattern held in every re-check; the odds it's random noise are about 1 in 23 billion.

The raw numbers

Shots analyzed224
Chance it's a flukeabout 1 in 23 billion (p = 4.35267377696391e-11)
Held up in re-checks100%
Measured instrokes gained, per shot
Confirmed— held up under every checkthe tree hit tee slice hole costdeepens your tee-ball story

Tree contact marks the costly tail of this golfer’s tee-slice pattern.

−0.53 strokes to par

15 shots · vs other tee-shot holes

For this golfer, tree-hit tee slices were followed by holes scoring 0.53 strokes worse to par than other tee-shot holes [n=15]. They also showed 0.14 more penalties per touched hole than tee shots matched by hole difficulty [n=16]. By comparison, the full tee-slice family cost 0.23 strokes on the holes it touched and added 0.02 penalties per hole after allowing for difficulty [n=189]. Tree-hit tee slices made up 3.33% of measured tee shots, so the evidence identifies a small, costly part of this golfer’s slice pattern—not proof that tree contact causes the penalties.

Tree-hit slices: hole cost−0.53
Tree-hit slices: extra penalties−0.14
All tee slices: hole cost−0.23
All tee slices: extra penalties0.02

the severe tail inside your tee-slice pattern

Worth knowing: The 0.53-stroke gap covers the whole hole, so it cannot separate the tree strike itself from the especially severe slice and blocked-out position that came with it.

What to do with it: Work first on keeping tee slices out of the trees rather than trying to tidy every right-curving tee shot.

The precise claim

Tree-hit tee slices are followed by holes scoring 0.53 strokes worse to par than the golfer's other tee-shot holes.

Looking at: Round tee shots in the Slice, Push-slice, or Pull-slice shape classes that also hit trees; slice classes have at least 10° of fade-side spin tilt

How sure are we?

Found by tracing what actually happens inside the costly moments, priced against other tee-shot holes and the pattern held in every re-check; the odds it's random noise are about 1 in 51.

The raw numbers

Shots analyzed15
Chance it's a flukeabout 1 in 51 (p = 0.019583478976581)
Held up in re-checks100%
Measured instrokes to par, per hole
Confirmed— held up under every checkthe tree hit tee slice hole costdeepens your tee-ball story

Tree contact marks your costliest tee-shot trouble—not Slice shape alone

−0.26 strokes to par

28 shots · vs holes after tee shots without tree contact

Tree contact does not identify the swing pattern that caused the miss, but it does mark the tee-shot holes where the damage shows up. It occurs on 6.03% of your tee shots; those holes score 0.26 strokes worse to par than holes after tee shots without tree contact and carry 0.17 more penalties than other tee shots on comparable holes. By contrast, the full Slice family carries only 0.01 excess penalties on comparable holes.

Tee shots that hit trees−0.17
All Slice-family tee shots0.01
Other tee shots0.01

penalty excess per affected hole, after matching hole difficulty

Worth knowing: Tree contact is a damage marker, not a swing diagnosis — tighter tree-lined holes and different combinations of start line and curve can all produce it.

What to do with it: Review the start line, curve, and miss severity behind your tree-contact tee shots instead of treating every Slice-shaped tee ball as equally dangerous.

The precise claim

Tree-contact tee shots occur on holes that score 0.26 strokes worse to par than holes touched by your other tee shots.

Looking at: Round tee shots whose flight contacted trees, compared with all other tee shots; penalty difference controlled within hole-difficulty bands

How sure are we?

Found by tracing what actually happens inside the costly moments, priced against holes after tee shots without tree contact and the pattern held in every re-check; the odds it's random noise are about 1 in 11.

The raw numbers

Shots analyzed28
Chance it's a flukeabout 1 in 11 (p = 0.0902735857357158)
Held up in re-checks100%
Measured instrokes to par, per hole
Confirmed— held up under every checkdeepens your tee-ball story

A Push-slice that is also a pop-up looks like your most expensive tee pattern.

−0.12 strokes to par

24 shots · vs other tee-shot holes

When the skied strike and Push-slice overlap, those holes run 0.39 strokes worse than your other tee-shot holes, and the combination appears on 5.20% of tee balls. Without that overlap, 0.24 strokes a round comes back, so rank the compound miss ahead of treating curve and strike as separate problems.

off-tee Push-slice paired with a pop-up−0.12
other tee-shot holes0.27

strokes to par — the combination vs its parts

Worth knowing: These pop-up Push-slices may cluster on particular clubs or tougher tee shots, so the full hole-score cost may not come from the compound miss alone.

What to do with it: Prioritize the compound miss ahead of either symptom in isolation.

The precise claim

Holes touched by an off-tee Push-slice pop-up play 0.39 strokes worse to par than this golfer's other tee-shot holes.

Looking at: Round tee shots that are both Push-slice (starts more than 2° right and curves right at least 10° for this right-handed golfer) and pop-up (a skied strike launched far higher than this golfer's norm with energy lost below the flush strike band).

How sure are we?

Found by crossing factors — this combination breaks from what its parts predict alone, priced against other tee-shot holes and the pattern held in every re-check; the odds it's random noise are about 1 in 76.

The raw numbers

Shots analyzed24
Chance it's a flukeabout 1 in 76 (p = 0.0131646887531849)
Held up in re-checks100%
Measured instrokes to par, per hole

That's 5 of 18 tracked findings

The full report carries all 13 confirmed — plus a strong signal, a forming read, and three on the horizon.

Keep reading the full report→

live · read-only · no sign-up needed

03 · Strokes gained

See where strokes hide.

Every shot measured against scratch, Tour, or your own handicap — your game sorted into where the strokes actually go.

Browse this live on the founder's account→

The Strokes Gained view on a phone

access your data from any device — iOS or web

The Strokes Gained view on the founder's real account — off the tee, dispersion drawn
The Strokes Gained view on a phone
04 · Practice, replayed

The range, replayed.

Every range session banked shot by shot — walk back into the replay, your tagged blocks, and each club's true numbers building while you work.

Browse his practice sessions→

A practice session on a phone

access your data from any device — iOS or web

A real practice session on the founder's account — the range replay and per-club numbers
A practice session on a phone
05 · Your bag, mapped

Every club's true window.

Each club's real carry and spread, laid down one fairway — the gaps show before they cost you.

See the live bag map→

The bag map on a phone

access your data from any device — iOS or web

The bag map on the founder's real account — practice scope
The bag map on a phone
06 · Swing camera — soon

Your swing, on tape.

Automatic recording coming soon.

How it works

Five minutes once. Automatic forever.

01

Play on your sim

GSPro, practice or rounds. Five-minute setup once — then Birzo lives in the background.

02

Every shot captured

All of it, automatically — every swing, every hole, every detail. A few taps of tagging when you want even sharper reads.

03

Your game, everywhere

iPhone and any browser, live during the session and after. Buddies tracked under their own names.

Free plan forever. Paid plans coming.

free · forever

  • Every shot captured automatically
  • Your real distances
  • Strokes gained — your pick of baseline
  • Live second screen during the session

pro

  • Trends across every session
  • AI insights
  • Cross-session intelligence

Your next session could be the first one banked.

Join the beta — free

Not ready? Browse the founder's real account first →

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Every shot remembered. Every session measured.

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