The sports broadcaster uses colours to show the driver's performance, measured against his previous time and the best time for the session. The circuit is divided into three sectors and each sector will display its own split time.
The colours and their meaning are as follows
White - the current official recorded time.
Yellow - signifies the driver has completed the sector, but with no improvement.
Green - signifies the driver has completed the sector and bettered his previous time for that sector.
Purple - signifies the driver has completed the sector and has done the best time of the session.
The timing sheets will then flash up the driver's lap time in the overall colour achieved.