Abstract: An electronic time computer and display particularly suitable for use by road race runners in the form of an electronic stop watch indicating cumulative time and including a second display indicating an element of time between the latest two actuations of an operating switch and a third display of the average element of time between all previous consecutive actuations of the operating switch. The computer will also include a display of a predetermined element of time for covering a unit distance selected through an independent control and a display for that element of time to be taken before the next actuation of the operating switch to achieve an average element of time for all the unit distances covered equal to the predetermined element of time for the unit distance.