Blue Tees Rainmaker Setup: How to Get Accurate Numbers
How to Set Up and Get the Best Results From Your Rainmaker
Introduction
Every golfer who buys a launch monitor has the same first reaction. You hit a shot, look at the screen, and think: that can't be right. Sometimes it isn't. Usually it is, and the setup is what's off.
The Rainmaker Portable Launch Monitor is an accessibly priced launch monitor that uses Doppler radar technology to measure your shots, which means it can be incredibly precise, but also picky about setup. The good news: most inaccurate readings can be traced back to something fixable, not a faulty unit. Five minutes of proper setup can make the difference between numbers you trust and numbers that leave you scratching your head.
How to Set Up the Blue Tees Rainmaker Properly
1) Get the distance and elevation right.
Place Rainmaker exactly 5 feet (1.5m) directly behind the ball, level with it, and aimed straight down your target line. If you're hitting from a raised mat, Rainmaker should be raised to the same level. You can even use the carrying case as a flat, elevated surface for the device.
2) Leave enough room for ball flight.
When using Rainmaker indoors, leave at least 10 feet (3m) of open space between the ball and your net or impact screen. This gives the radar enough room to accurately track the ball in flight.
3) Clear the area.
Fans, heaters, air conditioning units and large metal objects near Rainmaker can interfere with the radar signal. Move them or switch them off before you start your session. A garage with a metal up-and-over door directly behind the unit is worth thinking about too.
4) Mark your ball position.
Use a tee or ball marker to make sure the ball is in the same spot for every shot. Even an inch of movement can affect launch direction, carry distance and other metrics.
5) Update before you play.
Connect Rainmaker to the LAUNCH App and install any pending firmware updates before starting your session. We're constantly rolling out bug fixes, performance improvements and new features.
How Much Space Do You Need? A UK Garage Reality Check
This is the question most British buyers actually have, and the setup steps above answer it without spelling it out. Add them up: 1.5m behind the ball, plus 3m of ball flight in front of it. That is 4.5m of length before you have allowed for the net itself or for standing room behind the unit.
A typical UK single garage runs around 5m long. It fits, but not with much to spare, so measure before you commit to a layout.
Ceiling height is the tighter constraint for most people. A standard garage sits around 2.3m to 2.4m, which is fine for irons and wedges but marginal for a full driver swing. If you are unsure, take a slow swing with your driver and check the arc before you set up a net underneath it.
Short on length? A few things help. Move the hitting position as far back as the room allows rather than centring it. Hit into a net rather than a screen, since nets need less standoff. And if the space genuinely will not take a driver, irons and wedges still give you the numbers that matter most for scoring.
Outdoors at the range you have none of these problems, which is why plenty of UK owners use Rainmaker at the range through the summer and in the garage from October onwards.
Why Your Rainmaker Numbers May Vary From Shot to Shot
Some variation from shot to shot is normal. That's golf, not a glitch. But there are a few things worth knowing:
Measured vs. calculated
Rainmaker uses radar to directly measure ball speed and club speed. Other metrics, including carry and total distance, side, and apex are calculated using those measurements. A consistent setup gives Rainmaker the best possible data to work with and helps produce more reliable results.
Indoor spin needs a little help
Because Rainmaker uses radar rather than cameras, standard golf balls can produce less consistent spin and directional data indoors. For the most accurate indoor results, use radar balls like the Titleist RCT and be sure to enable "RB Ball" in either the LAUNCH App or on the device itself under Settings. You only need to enable it once — in the app if you are using LAUNCH, or on the device if you are running standalone.
Driver is the most sensitive club
With its larger face and lower loft, small differences in ball position or device alignment can be more noticeable in your driver data than with shorter clubs. If a number looks off, double-check your setup before assuming the reading is wrong.
Selecting the right club matters
Rainmaker applies a club-specific algorithm to interpret each shot and calculate accurate data. Before you swing, make sure the club selected in the LAUNCH App matches the one you're actually hitting. When you switch clubs, update your selection in the app too.
Cold garages and cold golf balls
Two things worth knowing if you practise through a British winter. A cold ball comes off the face slower, so your carry numbers in an unheated garage in January will read lower than the same swing in July. That is real, not a device error. Keep a few balls indoors between sessions if you want a fair comparison.
Battery life also drops in the cold, as it does with any lithium battery. Charge fully before a long session in an unheated space.
Rainmaker Accuracy Troubleshooting: Still Looks Off?
- Power the unit off, wait 10 seconds, power it back on, and start a fresh session.
- Hit a few shots in a row with the same, well-struck club — one odd shot isn't a trend.
- Confirm the LAUNCH App is connected and your units and settings are set the way you expect. Check yards or metres is set the way you want it.
- Re-check placement: 5 feet (1.5m) behind the ball, level, centred, aimed at target.
If numbers still don't look right after all of the above, you can reach out to your Blue Tees contact or our UK customer service team at sales-support@blueteesgolf.co.uk.
Getting Started With the Blue Tees LAUNCH App
Pair with the LAUNCH App.
Rainmaker connects to the Blue Tees LAUNCH App on both iOS and Android. A tablet gives you the best primary display, but your phone works great too, especially for checking session history and club data on the go.
Do You Need a Subscription to Use the Rainmaker?
You can practise without the app or a subscription. Rainmaker works as a standalone launch monitor right out of the box, so you can jump into a session without either. Pair it with the LAUNCH App to unlock additional metrics, unlimited session storage, immersive data visualisation and syncing across the Blue Tees ecosystem. The membership is free to try, so you can see whether the extra data earns its place before committing to anything.
LAUNCH App and GAME App: What Each One Does
LAUNCH and GAME work together, but do different things.
The LAUNCH App is built specifically for Rainmaker, giving you a deeper view of your practice sessions and storing your shot data.
The GAME App is built for the course, with GPS, scoring and device management for products like the Player Pro GPS Speaker and Captain Series rangefinders. It also handles Stableford and other formats alongside standard stroke play, which matters if your club golf is mostly points rather than medal. Together, they connect your practice and on-course data across the Blue Tees ecosystem. One Blue Tees membership gives you access to both.
Practising Indoors, Outdoors and in a Simulator
Rainmaker works well with hitting nets, indoors or outdoors — just make sure there's enough ball flight in front of the unit to track the shot. It's one of the most common ways golfers use it.
Mirror the LAUNCH App to a TV or projector via AirPlay on iOS or screen mirroring on Android. That is the usual route for a home simulator setup.
If you are still deciding how far down this road to go, our guide on whether to buy a simulator or a launch monitor first is worth a read before you start ordering nets and screens.
Built for How You Actually Play
- Automatically detects left- and right-handed golfers. No manual switching required. Sharing one unit? Each golfer logs into their own Blue Tees account, so everyone gets their own session history.
- Add up to 30 custom clubs in My Bag to match your exact setup — multiple wedges, different drivers, whatever your bag looks like.
- Standalone mode with no app connected offers three session types right on the device: Practice, Target and Swing Speed Mode.
- Made a mistake mid-session? Shots can be edited or removed from Session History, available for Practice Sessions.
- The Rainmaker Remote runs the show in standalone mode. Once you connect to the LAUNCH App, the app takes over as primary control and the remote shifts to menu navigation.
What the Rainmaker Launch Monitor Measures
The Rainmaker tracks 20+ performance metrics using Doppler radar. Thirteen are available directly on the device: ball speed, launch angle, launch direction, apex, carry, total distance, back spin, side spin, spin axis, attack angle, club speed, club path and smash factor.
Seven more unlock through the LAUNCH App and are generated by the Blue Tees Physics Engine: side, side total, hang time, descent angle, apex time, landing speed and landing spin. If a metric you're looking for isn't on the device screen, that's why — check the app.
Once you have a few sessions behind you, the most useful thing you can do with that data is build a real yardage chart. Our guide on finding your real yardages for every club covers how to turn range numbers into something you can trust on the course.
For full specifications and device settings, download the complete Rainmaker user manual (PDF).
Rainmaker Portable Launch Monitor — £599.99
Doppler radar tracking across 20+ ball and club metrics, read straight off the 4.3" on-device display with no phone required. Three standalone modes, a magnetic remote, IPX4 water resistance and USB-C charging, so it handles a damp morning at the range and folds back into its case for the garage.
Want to see the Rainmaker in action? Check out the full demo on our YouTube channel.
Frequently Asked Questions
Does the Rainmaker need Wi-Fi or mobile signal to work?
No. The Blue Tees Rainmaker reads shots with onboard Doppler radar and shows results on its own 4.3" display, so it works with no internet connection at all. That matters at plenty of UK driving ranges where the signal drops out, and in a garage where it never reached in the first place. You only need connectivity to install firmware updates or sync sessions to the LAUNCH App afterwards.
What comes in the box, and do I need anything else to get started?
The unit, a protective carrying case and a USB-C charging cable. The magnetic remote attaches to the device itself. Nothing else is required for outdoor range sessions — if you plan to practise indoors, add a net and consider radar balls like the Titleist RCT for better spin data.
How much room do I need to use it indoors?
Roughly 4.5m of length as a minimum: 1.5m behind the ball for the unit, plus 3m of ball flight before the net. Add space for the net itself and for standing behind the device. Ceiling height is usually the bigger issue in a UK garage — around 2.3m is fine for irons but tight for a driver, so check your swing arc before setting anything up.
Is the Rainmaker waterproof? Can I leave it out in the rain?
It's rated IPX4, which means water resistant, not waterproof. A light shower, mist and morning dew are fine. Don't submerge it, don't leave it standing out in a downpour, and dry it off before it goes back in the case.
Can I use the Rainmaker during an actual round?
It's built for practice, not for play. Setting it up behind every shot isn't realistic on the course, and Rule 4.3 under the Rules of Golf restricts devices that gauge conditions affecting play, so check the rule and your club's local rules sheet before using any tracking device in competition. For yardages during a round, the Captain Pro rangefinder or the Player Pro GPS Speaker is the right tool.
How does the Rainmaker compare to the Garmin Approach R10?
Both are portable radar units in a similar price range, and the R10 has earned its reputation. The clearest difference is that the Rainmaker has a built-in display and three offline modes, so you can run a full session without a phone propped up behind you. That's the practical edge for range work. If you're building around a specific simulator platform, check software support on both before deciding.
