• A stopwatch with at least 0.1-second resolution
• Two parallel lines 25 yards (22.86 m) apart on a
flat surface (figure 13.6)
• One timer, two line judges
1. Pair off athletes of similar ability.
2. Position two athletes immediately behind one
line, facing the other line.
3. On an auditory signal, the athletes sprint to the
line 25 yards (22.86 m) away, making foot contact
with it, then immediately sprint back to the first
line. Six such round trips are made as fast as
possible without stopping (6 50 yards = 300
yards, or 274 m).
4. On completion of the first trial, record both
athletes’ times to the nearest 0.1 seconds and
start a clock to time a 5-minute rest interval. As
each pair of athletes completes the first trial, they
may walk and stretch but must stay alert for the
starting time on the second trial.
5. After the rest period, the pair of athletes does
6. The average of two trials is recorded to the
nearest 0.1 second.
Note: Descriptive data for the 300-yard (274 m) shuttle
are presented in table 13.9 near the end of the