How are road race results timed, and are net times official?

For races under Australian Athletics World Ranking Competition requirements, results in road races must be gun times and must not include decimals. The one exception is the road mile, as set out in World Athletics rules.

The same requirements say not to describe net times as "official". Use terms such as "net" or "athlete" time instead.

Source: Australian Athletics, World Ranking Competitions and Venue Requirements in Australia (version 14 January 2025): https://www.athletics.com.au/world-ranking-competitions-and-venue-requirements-in-australia/