Certus Golf  /  Course

Read the hole before you play it.

The Wind Compass on hole 1: 13 mph from the south gusting 29, and how far 100, 150 and 200 yards play in today’s weather.Wind and air Hole 1 at Rattlesnake Ridge from above: 218 off the tee playing 228 with a 3 iron and 161 in playing 171 with a 7 iron, with a live wind card.Plays-like Hole 1 green slope: a color-coded slope map with break arrows across the green.Green slope

Step on the tee like you’ve played the hole before. Fly over it first, see where the trouble is, and play to a number that already accounts for the wind, the elevation and the air.

GPS

Everything the shot depends on, in one view.

You get live distance to the front, center and back (measured where your line crosses the green’s edge), reach and carry numbers for the bunkers and water ahead, rings off the green, and elevation steps marked on the line. It’s all drawn on 3D satellite imagery with the greens and hazards outlined.

Drag the aim point anywhere. It snaps to the fairway centerline, bends around doglegs, and shows the plays-like number and the club from your own yardages.

  • 2D or tilted 3D map
  • Simple View: just the big numbers
Hole 1 · par 4
Hole 1 at Rattlesnake Ridge, a 384-yard par 4 from the blue tees: 379 to the center, 218 off the tee playing 228 with a 3 iron and 161 in playing 171 with a 7 iron, tagged beside the line so the fairway stays clear, a ring on the aim point you can drag, your past tee shots numbered with the score you made, distance rings around the green, and live wind 14 mph gusting 30 at 63°.
Plays-like on every segment.A club for each one, live wind and gusts, rings off the green.

The number the shot really plays.

Plays-like is three physical adjustments, each with its rule written down, added to the yardage on the map.

How plays-like is built
Map yardageGPS, tee-to-target or you-to-target + Elevation1 yd per 3 ft · sampled along the hole from 10 m terrain data + Windhead/tail only · 1.0%/mph to 166 y → 0.7%/mph at 300 y · downwind ¾ of into + Air density+1% per 10 °F · +1.16% per 1,000 ft above home · +0.4% per 10 mb low = Plays-likeoff in tournament-legal mode
Elevation is read from the terrain along the hole, never as one tee-to-green number. Crosswind changes your aim, not the distance. Altitude counts from your home course, where your yardages were learned. Wind under 3 mph, elevation under 3 ft, and live weather older than an hour are all ignored rather than guessed at.

Tee-time forecast

Planning tomorrow’s round? Set a tee time and every hole gets the forecast wind for when you’ll actually reach it, counting from your starting hole at about fifteen minutes a hole.

See the wind

Tap the wind card and animated streaks flow across the hole in the wind’s true direction. The harder it blows, the more streaks there are and the faster they move.

A forecast built for golf.

A Low, Moderate or High weather-impact rating for today, tomorrow or any day in the next ten, with an outlook explaining why. There’s also a wind compass that turns the forecast into a distance table, plus official severe-weather advisories and the UV index.

Read the green from the fairway.

Every green-mapped course comes with a color-coded slope map and a 3D green you can spin. Your subscription includes 12 green-mapped courses a year, downloaded once and kept for offline play.

Green · slope
Hole 1 green slope: a color-coded slope map with break arrows across the green and a legend from 0–1% to 7%+.
Direction and severity.Arrows show the break; color shows how steep.
Green · 3D
14″ of fall.Spin it; the tiers stand up.

See the tiers in 3D.

Open the full-screen slope view and tap 3D. The green rises off the screen so you can rotate it, pinch to zoom and find the shelves. It’s calibrated against the slope map, so it tells you the actual fall in inches across the surface.

Land on the right tier and the putt is flat. The map shows you which tier that is before you pull a club.

A caddie that knows how you actually hit it.

The tee-club call ranks your clubs by expected strokes gained on this hole. It uses only your own tracked shots, your real carry spread once a club has enough of them, and whether you run out of fairway. Every number shows how many shots it’s built on.

Only a few shots with a club? It’s grayed out as provisional. Two clubs within 0.05 strokes? It says it’s too close to call and lets you hit the one you trust. Turn on pressure mode and it uses your tournament rounds, flagging the clubs that fold when the card counts.

Tee-club call
Tee club: your shots and expected SG on this hole Drivern = 41−0.043 Woodn = 17+0.03 bestHybridn = 6needs 8 shots Under 0.05 strokes apart, the caddie calls it a toss-up rather than pretending to know.
Illustration with example values. The real call uses your shots on the hole in front of you.

Keep score the way you play.

Log a round on the course or after it, on your phone, your Watch or paper. Every method feeds the same stats.

During the round

On the GPS map

Tap to mark each shot where you’re standing. Certus records the club, the lie and the distance, and works out the hole score for you to confirm.

Strokes gained on every shot
During or after

On the phone scorecard

Enter the card hole by hole: score, putts, fairways and greens. It saves as you go, and a card entered later is dated the day you played.

Score, putts, fairways, greens
On your wrist

On Apple Watch

Keep score, putts and fairways from your wrist. If the phone is out of range, taps wait on the Watch and sync later.

Syncs when back in range
After the round

On a printed card

Print a Certus Scorecard or Shot Tracker with your tees filled in, play with a pencil, then scan it. The round reads straight into the app.

Scanning is opt-in AI

It notices

Standing on the tee with nothing logged? Certus reminds you to log the drive, and notices if you skipped it. Walk to the next tee and it moves on by itself.

On-course nudges

Hands-free

Put a Log Shot control on the Action button or in Control Center, or tell Siri “Certus Golf, I made a 5.” The phone can stay in your pocket.

Action button and Siri
Go deeper: the Lock Screen and Apple Watch
Live Activity

The hole and + Shot, without unlocking.

The banner shows the hole, your score and the yardage to the middle, with front and back underneath. + Shot marks where you’re standing; on the green it turns into Pin and putts.

It moves to the next hole with you, even if the app was closed, and the hole and score sit in the Dynamic Island while you use the phone.

Lock Screen · hole 7
An iPhone Lock Screen during a round: hole 7, par 4, one over, 152 yards to the middle, front 141, back 164, shot 2, and a gold + Shot button.
Apple Watch

The yardage and the card, with your phone in the bag.

The Watch measures to the flag with its own GPS and moves between holes by itself. Plus and minus set the score (the first tap lands on par), and putts and fairway are one tap each.

Wind and temperature come from the phone, and the total moves as you tap.

Watch · hole
Certus on Apple Watch during a round at Rattlesnake Ridge: hole 7, par 4, 152 yards to the flag, with hole arrows and the minus and plus score buttons.
Watch · card
Further down the Watch screen: putts 0 to 4, fairway left, hit or right, wind 10 mph at 65°, and the running total, 25, one over.
Course history

How you play this course.

Every course you’ve played gets its own page: scoring average, your strokes gained there, par-3, 4 and 5 performance, your strongest and weakest holes, and a map of your tee shots on every hole, each numbered with the score you made.

Before you go back, read what the coach says about it, and print the Course History report for the first tee.

  • Strongest & weakest holes by SG
  • Shot history on every hole
  • Par-3, 4 and 5 scoring
  • Course History PDF in Reports
Course · Rattlesnake Ridge
The Rattlesnake Ridge course page: −1.6 strokes gained per round against a +2 handicap (approach −2.4, driving +0.5), a Certus insight that the last three rounds average 72 against 75 overall, and a 75.4 average with a 68 best over 23 rounds.
Where this course gets you.Strokes gained and insights, per course.
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