f1-agws · f1 guide
F1 Telemetry Glossary
A clear glossary reduces interpretation errors. Here are the terms that really matter when analysing lap times and telemetry from a session.
Lap time terms
- Delta: time difference between two drivers or two laps.
- Best Lap: the driver's fastest lap overall.
- Representative Lap: a clean lap used to assess true pace.
Telemetry terms
- Throttle Trace: throttle position as a percentage over distance.
- Brake Trace: braking intensity and duration.
- Apex Speed: minimum speed at the centre of a corner.
Strategy terms
- Stint: a block of laps on the same set of tyres.
- Tyre Age: number of laps completed on the current tyre.
- Undercut / Overcut: pit stop strategies used to gain track position.
Frequently asked questions
What is a delta in F1?
A delta is the time difference between two drivers or two laps. A positive delta means slower, a negative delta means faster.
What is a stint in F1?
A stint is a continuous block of laps run on the same set of tyres, between two pit stops.
What is apex speed?
Apex speed is the minimum speed a car reaches at the centre of a corner — a key indicator of mechanical grip and corner-entry confidence.
Related F1 guides
- Flags and Race Control: Operational Meaning
- Live Track Map Guide
- F1 Mini Sectors: Practical Guide
- What changed in the 2026 F1 Sporting Regulations: Issue 05 to Issue 06
- How to Read F1 Live Telemetry
- How to Read the F1 Speed Delta
- How to Read the F1 Timing Tower
Put this into practice on the session dashboard — check the session schedule, browse all F1 guides or the F1 glossary.