TopWing Racing Broadcast Tools

Broadcast Overlay

The official TWR broadcast kit for iRacing. A live timing tower for OBS, automatic session logging, and a mobile timing view — all in one free Windows app. Download the installer and you're racing in under a minute.

Download for Windows Setup Guide

Version 1.1.0 · Windows 10/11 · Free

What You Get

OBS Timing Tower

A broadcast-ready overlay with iRacing's official positions, gaps, flag status, lap counter, and a results screen at the checkered flag.

Live Telemetry

Connects straight to the sim. Works in practice, qualifying, and races — including lone qualifying, with times merged from session results.

Session Logging

Every session is recorded automatically with full classifications, podium, hard charger, and fastest lap. Export as text, table, JSON, or CSV.

Mobile Timing

The same live tower on any phone or tablet on your network — perfect for race control or a second screen.

Up and Running in Minutes

Setup Guide

  1. 01

    Download and Install

    Run the downloaded installer and pick an install location. It sets up TopWing Overlay with Start Menu and desktop shortcuts — the telemetry server, iRacing reader, and dashboard are all bundled, no extra packages needed.

  2. 02

    Launch iRacing

    Join any session. Telemetry connects automatically and the in-app dashboard shows live status, a preview of the overlay, and every recorded session.

  3. 03

    Add to OBS

    Add a Browser Source pointing at http://localhost:3000/overlay.html at 1920×1080. For mobile timing, open http://<your-pc-ip>:3000/mobile.html on any device on the same network.

Before You Race

  • Windows 10 or 11 required
  • iRacing installed and active
  • OBS Studio only needed if you broadcast
  • Results are stored locally on your PC
  • Reconnects automatically if the sim restarts

Windows SmartScreen

Windows may warn that the app is from an unknown publisher because the exe is not code-signed. This is expected — click More info, then Run anyway.

The in-app Setup Guide tab covers OBS configuration, mobile timing, exports, branding, and troubleshooting in full detail.

Broadcast Like a Pro.

Questions about the overlay, or want to race under it? Everything runs through our Discord.

Join the Discord