Table 4.

Frequency of different rally characteristics and summary statistics of parameters related to either opponent hitting the third shot in each cluster for lob return of serves (ROS).

												Distance covered by opponent		Distance of by opponent
					Player ROS					Time (between ROS		hitting third shot (between		hitting third shot from
	Serve		Playing standard		aimed toward		Rally length			and third shot)		ROS and third shot)		net (at third shot)
						Serve	Short	Short		Mean	SD	Mean	SD	Mean	SD
Cluster	1st	2nd	National	Regional	Server	partner	(lost)	(won)	Long	(s)	(s)	(m)	(m)	(m)	(m)
1	129	0	129	0	62	67	44	22	63	1.65	0.48	2.68	1.19	5.43	1.67
	26.0%	0.0%	66.5%	0.0%	21.1%	20.1%	28.8%	21.4%	17.0%
2	0	102	28	74	43	59	22	17	63	1.65	0.23	2.43	0.79	5.57	1.04
	0.0%	78.5%	14.4%	17.1%	14.6%	17.7%	14.4%	16.5%	17.0%
3	126	0	0	126	55	71	83	43	0	1.64	0.42	2.34	1.03	5.03	1.56
	25.4%	0.0%	0.0%	29.1%	18.7%	21.3%	54.2%	41.7%	0.0%
4	80	0	0	80	0	80	0	0	80	1.69	0.23	2.67	0.90	5.46	1.05
	16.1%	0.0%	0.0%	18.5%	0.0%	24.0%	0.0%	0.0%	21.6%
5	74	25	32	67	47	52	3	17	79	3.03	0.28	5.82	0.86	8.61	0.37
	14.9%	19.2%	16.5%	15.5%	16.0%	15.6%	2.0%	16.5%	21.3%
6	86	0	0	86	86	0	0	0	86	1.72	0.26	2.42	0.83	5.96	0.92
	17.3%	0.0%	0.0%	19.9%	29.3%	0.0%	0.0%	0.0%	23.2%

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