
About this episode
In F1, every thousandth of a second is crucial. Drivers' performances are often separated by less than the blink of an eye, so how are F1 cars timed so accurately?
To find out, Christian and Katie speak to James Clarke, a highly-trained F1 timekeeper. James explains the technology on cars and at circuits which make the timing system work, how lap times and race positions are accurately recorded, and what happens if two drivers set identical times.
Get your question answered by an F1 expert
Record a voice note, write an email and send it to [email protected]
Find the answer in our previous episodes
To find out, Christian and Katie speak to James Clarke, a highly-trained F1 timekeeper. James explains the technology on cars and at circuits which make the timing system work, how lap times and race positions are accurately recorded, and what happens if two drivers set identical times.
Get your question answered by an F1 expert
Record a voice note, write an email and send it to [email protected]
Find the answer in our previous episodes
- What F1 drivers eat - with Oscar Piastri's nutritionist, Dr Dan Martin
- How F1 helmets are made - with Bell Racing
- Ask a Formula 1 Driver – Liam Lawson answers your questions
- Inside the FIA Safety Car - with driver, Bernd Mayländer
- How F1 video games are so realistic - with EA SPORTS F124
- LIVE in Miami with Guenther Steiner + F1 Explains listeners
- Car setup with Fernando Alonso + Aston Martin
- F1 race suits, boots, gloves + underwear - with PUMA
- F1 brakes - technology + technique - with Brembo + Jack Doohan
- The job of an F1 Team Principal - with Aston Martin's Mike Krack
- Why F1 teammates are friends + foes - with Valtteri Bottas + Zhou Guanyu
- How Formula 2 + Formula 3 prepare drivers for F1 - with Oscar Piastri
- F1 Academy - with Susie Wolff + Lia Block
- The F1 race start - with Mick Schumacher + strategist Bernie Collins
- Behind the scenes on Drive to Survive - with Exec Producer James Gay-Rees
- Why F1 pre-season testing matters - with Mercedes, McLaren + Alpine
- How F1 teams build their new cars - with Aston Martin Technical Director Dan Fallows
Listen to more official F1 podcasts
- For in-depth interviews with F1's biggest stars, listen to F1 Beyond The Grid
- For race previews and reviews from inside the F1 paddock, listen to F1 Nation
See Formula 1 live this season
Tickets for races in Texas, Las Vegas, across Europe and around the world are available now. Go to tickets.formula1.com to book your seats
Tickets for races in Texas, Las Vegas, across Europe and around the world are available now. Go to tickets.formula1.com to book your seats
Get every episode summarized
Each time F1 Explains publishes, we email you a written briefing from the transcript — the topics, who appeared, and any specific claims, with the ad reads skipped.
Email me new episodesFree for 3 shows. No card needed.
Hosts & guests
No transcript yet
This episode has not been transcribed. Request it and it moves to the front of the queue.
More episodes
More from F1 Explains

F1 Explains is back - in our new home
F1 Explains
Feb 27, 20261:23pending

F1 Explains has joined F1 Nation for 2026
F1 Explains
Feb 19, 20261:47pending

Driving secrets, pit crew cookies, movie star cars + a Team Principal's toilet -...
F1 Explains
Dec 19, 202525:06pending

The F1 winter - with James Vowles + Lawrence Barretto
F1 Explains
Dec 12, 202535:31pending