if you just googled the dimensions of a baseball infield, you could easily find the length of each side (hint: it's 90ft). From there, you would realize that he runs along all four sides (90*4=360). Unless you are in second grade, you would see that immediately.
if you need more information, that's
360 feet;
.0682 miles;
4320 inches;
109.72800 meters;
0.10972 kilometers;
10,972.8 centimeters;
48 full length strides (based on average stride legth).
I FIGURED ALL OF THIS OUT WITH GOOGLE