A sim racer in a cockpit wearing a headset, gripping a formula-style wheel under red light

Your race
engineer.
Live.

The radio call every F1 driver gets. Now it’s yours.

An AI race engineer reads your live telemetry, talks you through races and coaches you in practice.

Hear your engineer

Sound on. This is what you’ll hear in your headset.

50Spots

First 50 drivers: early access + 2 months free

Spots go in sign-up order.

Built for

on PC

Race. Practice. Review.

Three ways RaceDelta makes you faster.

In the race

Smarter race calls, live

An AI engineer follows the race with you and makes the calls a real one would: when to push, when to save the battery, when to go for the move.

AI that follows your live telemetry, lap after lap
Strategy calls: when to push, save ERS or go for the overtake
Tyre and fuel calls before they cost you
Press a button on your wheel to ask a question
Quiet when there’s nothing worth saying

Race situation

Lap 14/26

DRS 1.0s

You

P3
Car ahead
Closing 0.3s a lap
Hard tyres, 14 laps old+2.2s
P4
You
Tyres in the window
Medium tyres, 6 laps old
P5
Car behind
Holding
Medium tyres, 7 laps old−0.8s

ERS Medium61%

YouCan I catch P3?
EngineerYes. You’re gaining three tenths a lap. DRS range in about four laps.

In practice

A coach that checks its own advice

Our algorithms find the corner where you lose the most time and give you one thing to fix. Next lap, they check if it worked.

1Lap 7“Braking about 10 metres early into Turn 6. Try a touch later.”
2Lap 8“Much better. You gained 0.18 there. Do the same again.”
3Lap 9“Turn 6 is sorted. Next: carry more speed through Turn 9.”

Brake point, Turn 6

Silverstone

Gained on lap 8

−0.18s

After the session

See where the time goes

Compare any lap with your best, corner by corner. RaceDelta shows you the data and lists the fixes worth the most time.

Speed, throttle, brake and steering for every lap
How much time you lose in each corner
Fixes ranked by how much time they’re worth

Lap 12 vs your best

Silverstone

Fix these first

1Turn 6Brake about 10 m later−0.21s
2Turn 9Carry more speed through the apex−0.15s
3Turn 4Get on the throttle earlier out of the Loop−0.08s

Worth up to−0.44s a lap

Start in three steps.

1
Turn on telemetry
In F1 25, switch UDP Telemetry on in the game settings.
2
Open RaceDelta
Run the app on the same PC as the game.
3
Drive
Put your headset on and map a button to talk. That’s it.

RaceDelta Discord

Join the
pit wall.

Our Discord is where everything happens first. Come for the updates, stay for the lap times.

See it first: Development updates, clips and new features before they go anywhere else.
Hear about invites first: Early access news lands in Discord before the newsletter.
Shape what we build: Tell us which calls, sims and features you want. We read everything.
Talk to the team: Ask the people building RaceDelta anything, directly.

Join the Discord

Questions.

Which games does it work with?: F1 25 on PC. iRacing, Assetto Corsa Competizione, Assetto Corsa and Le Mans Ultimate are planned.
What do I need?: A PC with F1 25, a headset and a spare button on your wheel or keyboard to talk.
Does it work on PlayStation or Xbox?: Not yet. The first version is PC only.
What does it cost?: RaceDelta will be a paid subscription. The first 50 drivers on the waitlist get their first 2 months free.
When can I try it?: We’re building it now. People on the waitlist get invited first.
Where do I get more info?: On our Discord. That’s where we post development updates and new features first, and where you can ask the team anything.
Something else?: Ask us on Discord.

Get in
the car.

50The first 50 drivers get 2 months free.Early access opens to the waitlist first, starting with F1 25.

Your raceengineer.Live.