The Home Run Derby is an annual Major League Baseball event in which eight of the top sluggers in the game get together in a competition with one goal in mind: hit the most home runs possible in an alotted period of time. Over the years the event has been met with mixed reviews, but the 2015 Home Run Derby brought life and energy back into the competition and great reviews with excitement already built for when it happens in July.
Below are some participants in the Derby in fairly recent years. Not everyone pictured won their respective derbys but all did quite well and they will lead you to the coordinates. Certitude will provide a hint for the final hiding location, but you will need a simple retrieval tool to get the cache. Also note that there is a parking fee where the cache is in the summer, but it is possible to access it without paying the fee if you're up for a longer walk or coming in the evening/early morning.
N 41° XX.XXX W 071° XX.XXX
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You can validate your puzzle solution with certitude.