Rankings: High, low, average, median, SD
The following are based on racquet specifications measured by technicians of the U.S. Racquet Stringers Association, and published in Racquet Tech magazine for 2002.
| Torque Newton.meters of torque |
1 BC 70 mph forehand, received at 20 mph |
2 BC 110 mph serve |
3 BC 40 mph volley, received at 40 mph |
4 BC 50 mph return, received at 50 mph |
5 BC 70 mph serve |
| Average |
67.54 |
90.37 |
60.03 |
75.04 |
57.51 |
| Standard Deviation |
5.73 |
6.74 |
5.10 |
6.37 |
4.29 |
| Worst |
81.70 |
107.12 |
72.62 |
90.78 |
68.16 |
| Best |
54.00 |
74.24 |
48.00 |
60.00 |
47.24 |
| Median |
67.22 |
90.12 |
59.75 |
74.69 |
57.35 |
| Impulse Reaction Newtons of force 167 Racquets 2002 |
1 BC 70 mph forehand, received at 20 mph |
2 BC 110 mph serve |
3 BC 40 mph volley, received at 40 mph |
4 BC 50 mph return, received at 50 mph |
5 BC 70 mph serve |
| Average |
-12.12 |
-21.33 |
-10.77 |
-13.46 |
-13.57 |
| Standard Deviation |
5.97 |
7.10 |
5.31 |
6.64 |
4.52 |
| Worst |
-31.18 |
-41.81 |
-27.71 |
-34.64 |
-26.61 |
| Best |
2.43 |
-6.87 |
2.16 |
2.70 |
-4.37 |
| Median |
-12.17 |
-21.18 |
-10.82 |
-13.53 |
-13.48 |
| Shock Joules of energy 167 Racquets 2002 |
1 BC 70 mph forehand, received at 20 mph |
2 BC 110 mph serve |
3 BC 40 mph volley, received at 40 mph |
4 BC 50 mph return, received at 50 mph |
5 BC 70 mph serve |
| Average |
19.41 |
50.79 |
2.52 |
3.93 |
20.57 |
| Standard Deviation |
1.49 |
3.37 |
0.21 |
0.33 |
1.37 |
| Worst |
22.75 |
58.23 |
3.06 |
4.79 |
23.58 |
| Best |
15.77 |
42.44 |
2.00 |
3.13 |
17.18 |
| Median |
19.43 |
50.89 |
2.52 |
3.94 |
20.61 |
| Work Joules of energy 167 Racquets 2002 |
1 BC 70 mph forehand, received at 20 mph |
2 BC 110 mph serve |
3 BC 40 mph volley, received at 40 mph |
4 BC 50 mph return, received at 50 mph |
5 BC 70 mph serve |
| Average |
21.63 |
70.62 |
3.44 |
5.38 |
28.60 |
| Standard Deviation |
1.52 |
4.22 |
0.35 |
0.54 |
1.71 |
| Worst |
25.10 |
81.54 |
4.49 |
7.01 |
33.02 |
| Best |
18.14 |
62.03 |
2.63 |
4.11 |
25.12 |
| Median |
21.39 |
69.90 |
3.43 |
5.36 |
28.31 |
| Shoulder Pull Newtons of force 167 Racquets 2002 |
1 BC 70 mph forehand, received at 20 mph |
2 BC 110 mph serve |
3 BC 40 mph volley, received at 40 mph |
4 BC 50 mph return, received at 50 mph |
5 BC 70 mph serve |
| Average |
48.56 |
155.16 |
7.73 |
12.07 |
62.83 |
| Standard Deviation |
2.30 |
6.36 |
0.61 |
0.95 |
2.57 |
| Worst |
54.31 |
171.64 |
9.54 |
14.91 |
69.51 |
| Best |
42.79 |
139.54 |
6.21 |
9.70 |
56.51 |
| Median |
48.50 |
154.66 |
7.71 |
12.04 |
62.63 |
| Shoulder Crunch Newtons of force 167 Racquets 2002 |
1 BC 70 mph forehand, received at 20 mph |
2 BC 110 mph serve |
3 BC 40 mph volley, received at 40 mph |
4 BC 50 mph return, received at 50 mph |
5 BC 70 mph serve |
| Average |
43.58 |
111.56 |
5.65 |
8.82 |
45.18 |
| Standard Deviation |
2.32 |
4.88 |
0.34 |
0.54 |
1.97 |
| Worst |
48.62 |
122.62 |
6.52 |
10.19 |
49.66 |
| Best |
37.19 |
97.78 |
4.72 |
7.37 |
39.60 |
| Median |
43.48 |
111.36 |
5.66 |
8.84 |
45.10 |
| Elbow Crunch Newtons of force 167 Racquets 2002 |
1 BC 70 mph forehand, received at 20 mph |
2 BC 110 mph serve |
3 BC 40 mph volley, received at 40 mph |
4 BC 50 mph return, received at 50 mph |
5 BC 70 mph serve |
| Average |
60.61 |
153.83 |
7.85 |
12.27 |
62.29 |
| Standard Deviation |
2.71 |
5.54 |
0.41 |
0.64 |
2.24 |
| Worst |
66.90 |
167.37 |
8.88 |
13.88 |
67.78 |
| Best |
52.74 |
137.33 |
6.69 |
10.45 |
55.61 |
| Median |
60.56 |
153.80 |
7.84 |
12.26 |
62.28 |
| Wrist Crunch Newtons of force 167 Racquets 2002 |
1 BC 70 mph forehand, received at 20 mph |
2 BC 110 mph serve |
3 BC 40 mph volley, received at 40 mph |
4 BC 50 mph return, received at 50 mph |
5 BC 70 mph serve |
| Average |
107.86 |
267.47 |
13.97 |
21.83 |
108.31 |
| Standard Deviation |
2.93 |
6.24 |
0.49 |
0.76 |
2.53 |
| Worst |
115.93 |
283.90 |
15.25 |
23.83 |
114.97 |
| Best |
99.18 |
249.86 |
12.58 |
19.66 |
101.18 |
| Median |
108.02 |
267.44 |
13.98 |
21.84 |
108.30 |
| Impact Force Newtons acting at mass center 1 Newton = 0.2248 lb 167 Racquets 2002 |
1 BC 70 mph forehand, received at 20 mph |
2 BC 110 mph serve |
3 BC 40 mph volley, received at 40 mph |
4 BC 50 mph return, received at 50 mph |
5 BC 70 mph serve |
| Average |
54.32 |
301.60 |
214.60 |
268.25 |
191.93 |
| Standard Deviation |
1.34 |
7.10 |
5.31 |
6.64 |
4.52 |
| Worst |
58.61 |
322.08 |
231.55 |
289.43 |
204.96 |
| Best |
51.05 |
287.13 |
201.67 |
252.09 |
182.72 |
| Median |
54.33 |
301.44 |
214.65 |
268.32 |
191.83 |
Average location of the sweet spot
| Sweet Spot Average (cm from tip) |
18.31 |
| Standard Deviation |
1.10 |
| Worst |
21.76 |
| Best |
15.51 |
| Median |
18.35 |
Average of the moment
| Moment Average (Newton.meters of torque about axis 7 cm from butt) |
0.799 |
| Standard Deviation |
0.042 |
| Worst |
0.942 |
| Best |
0.688 |
| Median |
0.803 |
Average flex
| Flex Average |
67.65 |
| Standard Deviation |
5.52 |
| High |
80 |
| Low |
52 |
| Median |
68 |
Average swing weight
| Swingweight Average (kg·cm2 about axis 10 cm from butt) |
313.5 |
| Standard Deviation |
18.30 |
| High |
395 |
| Low |
277 |
| Median |
313 |
Average mass
| Mass Average (grams) |
293.47 |
| Standard Deviation |
32.04 |
| High |
354 |
| Low |
221 |
| Median |
289 |