How does the height difference rank...

Marlene said:

You know, I've tried to do a bit of math on this ('cause I'm the geeky type), and what I come up with is that a 6 inch height difference doesn't really translate to very much, angle-wise, over a distance of 60+ feet. A serve down the T, landing on the service line, (neglecting spin, gravity, curving and other non-Pythagorean elements, but considering average arm vs height length, racquet size and jump height), is gonna have an angle of 9.9° for a 5'4" player and 10.9° for a 6'2" player... really, that's not a lot. The same goes for a serve that just makes the net; there really isn't a huge (mathematical) difference.

That said, I don't doubt that height makes a difference, but it's not just simply about angles.

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bobito said:

I just saw this video that explains it rather better than I did.

http://uk.eurosport.yahoo.com/video/08062012/58/hawk-eye-errani-must-find-length.html

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