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RaceLab – Start Here

Get overlays working fast. Most “it doesn’t work” issues are exclusive fullscreen or missing telemetry/plugin setup.^[1]

Step 1 — Install & Log In

Install RaceLab and open it.
Log in with the account you actually use.
Open Settings → Game Setup (auto-config is here).^[2]

Step 2 — Set Game Display Mode

No exclusive fullscreen (overlays won’t render).^[1]
Use Borderless / Windowed (Fullscreen) first.
For iRacing: Full Screen OFF + Border OFF.^[3]

Continue: Step 3 (Launch Order) | Step 4 (Overlays) | Fast Fixes

Quick reminder: If overlays don’t show, switch the game to Borderless / Windowed (Fullscreen) and restart the game once.^[1]

Step 3 — Recommended Launch Order (Most Reliable)

Option A (recommended)

Open RaceLab.
Select your Game/Sim in RaceLab.
Start the Game.
Go on track (not just menus).
Enable overlays / load your layout.

Option B (if detection is weird)

Start the Game first.
Go on track.
Alt-Tab, then open RaceLab.
Enable overlays / load your layout.

After changing window mode, telemetry settings, or plugins, restart the game once (many sims require it).^[2]

Step 4 — Overlays Basics (So You Don’t Get Lost)

In-game overlays

These sit on top of your game while you drive.
They need borderless/windowed display modes to render properly.^[1]
Move/scale them in the layout editor, then save.

Stream overlays (OBS)

These are used in OBS scenes (they do not have to appear inside the game).
Great if you want a clean cockpit and minimal HUD.

Fast Fixes (Overlays Not Showing / No Data)

Overlays not visible

Confirm you are on track.
Switch to Borderless or Windowed (Fullscreen), then restart the game.^[1]
Try the other launch order option above.
Temporarily disable other overlays to test.

No telemetry / no data

ACC: configure broadcasting.json as per the official guide.^[4]
LMU: install the telemetry DLL and enable it in CustomPluginVariables.json (note the required space in " Enabled").^[5]
F1: enable UDP telemetry and set the correct UDP format + 60Hz rate.^[6]

VR users: check VR compatibility notes (legacy Oculus API not supported; OpenComposite has known limitations in some games).^[7]

Next recommended pages: Simulations Supported | Quick Tips | Troubleshooting

Unofficial RaceLab support site maintained by Scottozy. Information is provided in good faith based on official documentation and community experience and may change as RaceLab is updated.