The dirt on a baseball infield extends out to an arc centered on the lip of the pitching rubber (60' 6" from home) and has a radius of 95'. This makes the distance from home to the very edge of the arc 155' 6" and the distance to the edge of the dirt along the foul lines about 127'7". Why was this value of 95' chosen? Why not, say, round it up to 100'? Or make it 90' to be consistent with the basepaths? Or perhaps shrink it to about 70', which is about the minimum size needed to fit all the bases inside? 95' just seems like such an oddly specific number that there must be a reason for it. But searching the internet just gives results explaining what the dimensions are and how to construct a field; I can't find a source that explains why a radius of 95' was chosen.

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    Good question - I can't find the answer either. I suspect it was, like with all of the rest of the sport, a trial and error thing; but I also don't think it was finalized as early as the rest of the dimensions - look at Ebbets Field, it has a different shape (and, no dirt). Most of the other dimensions were finalized by around 1900. – Joe Oct 18 at 19:06

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