Some interesting info:

Info -
http://www.humanbenchmark.com/tests/...time/stats.php

Test Yourself -
http://www.humanbenchmark.com/tests/...time/index.php

Drag Racing -
http://www.staginglight.com/guide/react.html

Drag racing is unique since you have a standardized means (time between lights) to anticipate the green light. Imagine what would happen if you simply sat there and waited a random amount of time until the light turned green!!

Swimmers are a little closer to what we deal with:

http://en.cnki.com.cn/Article_en/CJF...D200501043.htm