Start with the column label: a lap time measures one driver’s full lap, a sector time measures part of that lap, and a gap or interval compares a driver with the car ahead. Sector colours then show whether a split is a personal best or the fastest overall.
Identify what each number measures
Formula 1 timing screens can put several kinds of figures side by side. Before deciding whether a number is quick or slow, check the row and column label: the value may describe a lap, a section of a lap, or the separation between cars.
Lap time: one full lap
A lap time is the time a driver takes to complete a full lap. It is that driver’s result for the lap; by itself, it does not tell you the driver’s position or how far ahead of or behind another car they are.
Sector time: one part of a lap
Each lap is divided into three sectors. A sector time is a split for one portion of the lap, not a separate lap result. Comparing sector times helps show where a driver gained or lost time around the circuit. Formula 1’s glossary defines the term and the related timing language.
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Gap or interval: separation from the car ahead
A gap is the time separation between a driver and the car ahead. Formula 1’s glossary notes that “interval” is more commonly called a “gap.” It is a relative comparison, not the driver’s lap time. Formula 1 glossary
Delta: difference from a reference time
A delta is a difference between times. A negative delta means the driver is faster than the comparison time; a positive delta means slower. Check what time the screen is using as its reference before interpreting the sign: without that context, the number alone does not tell you what is being compared. Formula 1 glossary
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Read sector colours as two different comparisons
Sector colours distinguish a driver’s personal performance from the best sector time overall:
- Purple: fastest time set in that sector overall.
- Green: that driver’s personal best time in the sector. It can be a personal improvement without being the fastest sector overall.
- Yellow: a slower sector time.
So green and purple answer different questions: “Is this the driver’s personal best?” and “Is this the fastest sector overall?” Look at the sector column before using its colour to judge the split. Formula 1 glossary
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Scan the timing screen in this order
- Find the driver or row. Make sure you are reading the intended driver’s data.
- Read the column label. Establish whether the value is a lap time, sector split, gap, interval, or delta.
- Check the comparison. For a gap or delta, identify which car or time is the reference.
- Then read the value and colour. Use sector colours only for sector columns, and interpret the number in its proper context.
Treat the screen as a snapshot: positions and gaps can change during a session, and an active delta depends on the session and the display’s reference. Formula 1’s 2019 description of its Live Timing app said its combined screen showed each driver’s best lap, gap, lap time, and tyre use, with a driver tracker providing location context. It also described tapping a driver to inspect times and data against rivals. That is a description of the app at the time, not a guarantee that current screens use the same layout. Formula 1’s 2019 Live Timing app description
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Where to find live timing and related data
Formula 1’s current F1 TV subscription page lists live timing, telemetry, tyre usage, and driver maps among its features. Availability depends on the offer and territory, so check the current F1 TV page for the applicable features and terms. A historical app announcement from 2014 mentioned official lap timing to a thousandth of a second; that figure describes that product announcement and should not be taken as a statement of the precision shown by present-day timing screens. Formula 1’s 2014 app announcement
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