Table 3.

Frequency of different rally characteristics and summary statistics of parameters related to the server hitting the third shot in each cluster for a flat return of serve (ROS).

										Time (between		Distance covered by				Average velocity of
										ROS and		server (between ROS		Distance of server from		server (between ROS
	Serve		Playing standard		Service formation		Rally length			third shot)		and third shot)		net (at third shot)		and third shot)
							Short	Short		Mean	SD	Mean	SD	Mean	SD	Mean	SD
Cluster	1st	2nd	National	Regional	Australian	Conventional	(lost)	(won)	Long	(s)	(s)	(m)	(m)	(m)	(m)	(m/s)	(m/s)
1	0	178	95	83	94	84	17	27	134	0.90	0.24	1.64	0.55	4.13	0.87	1.88	0.53
	0.0%	90.8%	18.3%	16.6%	19.3%	15.7%	12.1%	14.5%	19.3%
2	148	0	0	148	0	148	0	0	148	0.98	0.29	1.62	0.64	4.46	0.91	1.68	0.56
	18.0%	0.0%	0.0%	29.5%	0.0%	27.7%	0.0%	0.0%	21.4%
3	257	0	135	122	122	135	114	143	0	0.92	0.25	1.67	0.56	4.12	0.88	1.89	0.53
	31.2%	0.0%	26.0%	24.4%	25.1%	25.3%	80.9%	76.9%	0.0%
4	131	0	0	131	131	0	0	0	131	0.99	0.30	1.78	0.68	4.45	0.84	1.85	0.61
	15.9%	0.0%	0.0%	26.1%	27.0%	0.0%	0.0%	0.0%	18.9%
5	139	0	139	0	0	139	0	0	139	0.86	0.19	1.65	0.49	3.84	0.91	1.98	0.47
	16.9%	0.0%	26.8%	0.0%	0.0%	26.0%	0.0%	0.0%	20.1%
6	122	0	122	0	122	0	0	0	122	0.88	0.23	1.73	0.42	3.86	0.82	2.03	0.47
	14.8%	0.0%	23.5%	0.0%	25.1%	0.0%	0.0%	0.0%	17.6%

Key: Percentages calculated for columns but do not add to 100% because outliers were not included.