Lately we have seen the proliferation of the concept: “It is faster to go on running through first base”. Furthermore, in recent tv transmission during World Series between Kansas City and San Francisco, we heard known voices, like Ozzie Guillen’s, defending this theory. It is a reality that a great number of instructors and technical personnel of all the baseball categories also agree with this theory. Many of them previously refused this technique because of the high risk of injury that exists when runners go head first diving into first base. Nowadays it is argued that it is dangerous and also useless, due that, according to what they say, it is slower than continuing to run through the first base. This position will have to obey to a reasoning and analysis that we do not know. The most eminent defense that we have found of this theory belongs to ESPN in its Program Sport Science. Next, the video for your enjoyment: http://espn.go.com/video/clip?i...