The result of this partnership was the introduction of automatic timing.

It took until 1977 before fully automatic timing was required of world records.

From 1977, the IAAF required fully automatic timing to the hundredth of a second for these events.

With automatic timing she had 1.56.59 minutes in the 800 metres, achieved in August 1978 in Prague.

As this was before the acceptance of fully automatic timing, the hand times were official, each recorded by three separate hand timed stopwatches.

Times are listed as both hand timing and automatic timing.

Fully automatic timing did not become mandatory for world records until 1 January 1977.

A year later automatic timing was used for results instead of hand timing.

In 1976, he also recorded the automatic timings of 10.12 s and 10.11 s that were World Junior Records for 100 m.

A couple of results in middle and long distance runs without fully automatic timing are marked (a).