Where do I lose time on the brakes?
Overlay your brake trace with a leaderboard lap on the 2D or 3D map and see whether you brake too early or release too soon at the apex.
F1 25 & F1 26
F1 Telemetry
From every lap you drive
Get free AI analysis of every F1 lap: ask your own AI race engineer where you lose time, and it answers from your real telemetry. Switch on UDP telemetry in the game once, start the Flowix agent, and every lap in practice, qualifying, races and time trial is recorded with tyre and brake temperatures, ERS, DRS or active aero, dampers, weather and sector splits.
UDP port 20777•
Up to 60 Hz•
3 sector splits•
Free plan
Getting started
How to enable telemetry in F1 25 and F1 26
1
Open a free account, install the Windows agent and confirm the sign-in in your browser once.
2
In the game open Game Options → Settings → Telemetry Settings.
3
Switch UDP Telemetry to On. Every other default already matches Flowix. For smoother traces also raise UDP Send Rate to 60 Hz. The game keeps these settings, so this is a one-time step.
4
Drive a full lap. It shows up in your sessions a few seconds after you cross the line.
| Setting | Default | For Flowix |
|---|---|---|
| UDP Telemetry | Off | On |
| UDP Broadcast Mode | Off | Keep |
| UDP IP Address | 127.0.0.1 | Keep |
| UDP Port | 20777 | Keep |
| UDP Send Rate | 20 Hz | 60 Hz (optional) |
| UDP Format | Game year | Keep (2025 / 2026) |
| Your Telemetry | Restricted | Keep |
Built for F1
Good to know before you drive
F1 pushes its data over the network instead of shared memory, so a few details differ from other sims.
Port sharing
Keep SimHub running
The game sends to one port only. Add forwarding ports in the agent settings and Flowix passes every packet on, so SimHub, a dash or Crew Chief keep working. You can also change the port Flowix listens on.
Send rate
60 Hz for clean traces
Flowix records at the rate the game sends. The default 20 Hz works, but 60 Hz gives smooth brake and steering traces through quick direction changes.
Validity
Flashbacks and track limits
A lap with a flashback is dropped because its trace was rewound. Laps the game invalidates, or with three wheels off track, are flagged and never count as a record.
Teams
Real car names
Laps are stored under the team you drive for. With equal car performance on, every car is one F1 2025 or F1 2026 entry; F2 laps share one F2 car.
No laps showing up? Check that UDP Telemetry is On, Broadcast Mode is Off, the IP is 127.0.0.1, the port matches the agent settings and the UDP Format is 2025 or 2026; older formats are ignored. The game has to run on the same Windows PC as the agent, so console play is not supported.
F1 data map
What F1 sends, sample by sample
Recorded on every packet the game sends, up to 60 times per second. The last row lists what the game keeps to itself.
| Area | Recorded data | Status |
|---|---|---|
| Car on track | Lap time and distance, speed, world position, velocity vector, pitch / yaw / roll | Recorded |
| Your inputs | Throttle, brake and clutch, steering, gear, engine RPM, front brake bias | Recorded |
| Tyres | Surface temperature and pressure of each tyre, wheel slip speed, fitted compound | Recorded |
| Brakes | Brake temperature at each wheel | Recorded |
| Chassis | Suspension travel and damper speed at all four corners, front and rear ride height | Recorded |
| Energy & aero | ERS store charge, DRS available / open, 2026 active aero straight mode, fuel remaining | Recorded |
| Car health | Wing and engine damage | Recorded |
| Conditions | Air and track temperature, rain intensity | Recorded |
| Not shared by the game | Inner / outer tyre zone temperatures, per-corner ride height, handbrake, clutch temperature and wear | Empty |
Putting the data to work
Three questions F1 data answers
Am I using ERS on the right straights?
Follow the ERS store and top speed along the lap. A battery that runs flat before the last straight explains a slow final sector.
Is my car bottoming out?
Front and rear ride height drops and damper spikes show where the floor hits the track, so you know whether to raise the car or take a different line over a kerb.
Hey Flowix where I’m losing at Interlagos?
There’s about 0.34 s of free time. Your best sector 1 plus your best sectors 2 and 3 adds up to 1:19.582. Almost all of that sits in the opening corner.
1. Turn 1, the Senna S, at ~310 m (0.32 s over the 150–620 m stretch).
- This is where you lose the most. The braking itself is good: you brake from about 304 km/h at 161 m with full pressure.
- You turn in at ~252 m with the brake still on, then the pedal comes off fairly quickly just before the apex at ~310 m. Weight is still on the nose, and the steering lock keeps growing past the apex, so the front pushes…
Your own AI engineer
Debrief an F1 stint with AI
Link Claude, ChatGPT, Gemini or a model running in LM Studio to Flowix, then ask something like “Where does the fastest Suzuka lap gain on me in sector 1?” The assistant pulls your actual F1 samples and answers with corner names, metres and km/h.
- ✓ Knows F1 sends one temperature per tyre and will not invent tread zones
- ✓ Reads ERS, brake heat and ride height to separate driving from setup issues
- ✓ Benchmarks against the quickest laps of your team on the leaderboards
- ✓ Included on the free plan
F1 questions
F1 25 / F1 26 telemetry FAQ
In Game Options → Settings → Telemetry Settings, only UDP Telemetry has to change, from Off to On. The defaults for the rest already work: Broadcast Mode Off, IP 127.0.0.1, port 20777 and UDP Format of the game year (2025 for F1 25, 2026 for F1 26). Raising UDP Send Rate from 20 Hz to 60 Hz is optional but gives smoother traces.
Then let Flowix receive the data and forward it. In the agent settings you can change the port Flowix listens on and add forwarding ports; every packet is passed on to those ports unchanged, so SimHub, a dash or Crew Chief keep working. Point those apps at the forwarding ports instead of 20777.
Usually one setting is off: UDP Telemetry is Off, Broadcast Mode is On, the IP is not 127.0.0.1, the port does not match the agent, or the UDP Format is an older year. Only the 2025 and 2026 formats are read. The game must run on the same PC as the agent; consoles are not supported.
Nothing. Capture, the analysis page, lap overlays, leaderboards, CSV and MoTeC i2 export and the AI connector are part of the free plan, which keeps detailed lap telemetry for 14 days (7 for non-clean laps) and lap times and personal bests forever. PRO extends storage to a year and lets you hide your traces from other drivers.
The game sends one surface temperature per tyre instead of inner, middle and outer zones, ride height per axle instead of per corner, and no handbrake or clutch temperature and wear. Those channels stay empty or shared between wheels.
A lap with a flashback is dropped, because its trace was rewound. The opening lap from the garage is not saved; later out laps are kept but marked invalid. Laps the game invalidates or with three or more wheels off track are marked invalid and never enter the leaderboards.
Yes. Laps in F1 cars are stored under the team name, so leaderboards compare teams. With equal car performance on, all F1 cars are one car (F1 2025 or F1 2026), and all F2 cars are stored as one F2 car.