Table 3.

Comparison between the two halves for each activity performed by referees for all competitions (Student t test, significance P=0.05):

Activity	1st Half/km	2nd Half/km	Difference/km	2 tailed P
Overall Distance	5.8947	5.8278	0.0669	0.0013
Walking	1.7016	1.7364	0.0349	<0.0001
Jogging	2.5170	2.4261	−0.0908	<0.0001
Running	1.2405	1.2188	−0.0216	0.0306
High Speed Running	1.2405	0.3717	−0.8688	<0.0001
Sprinting	0.0567	0.0581	0.0014	0.5781