How is the official time worked out from timekeepers' watches?

Q: How is the official time worked out from timekeepers' watches?

When no automatic or semi-automatic equipment is used, two timekeepers time each swimmer to 1/100 of a second, and the official time is: What happened Official time Both watches recorded a time The average of the two. If the average runs to thousandths, the last digit is dropped, not rounded (e.g. 1:05.235 becomes 1:05.23) One watch failed The time on the working watch Both watches failed No time; the swimmer may be offered a reswim The Referee then decides the winner and placings from the official times. Swimmers with equal times share the place. Each timekeeper must be appointed or approved by SSA (as the national federation) and use a watch certified as accurate.

Question

Accepted Answer

When no automatic or semi-automatic equipment is used, two timekeepers time each swimmer to 1/100 of a second, and the official time is:

What happened	Official time
Both watches recorded a time	The average of the two. If the average runs to thousandths, the last digit is dropped, not rounded (e.g. 1:05.235 becomes 1:05.23)
One watch failed	The time on the working watch
Both watches failed	No time; the swimmer may be offered a reswim

The Referee then decides the winner and placings from the official times. Swimmers with equal times share the place. Each timekeeper must be appointed or approved by SSA (as the national federation) and use a watch certified as accurate.