9 45 47 | Bryce Harper hits 45 home-runs in route to Home Run Derby crown +9 in 47-seconds

47-seconds, the hometown kid, in D.C.?  D.C. = 47

Last year Judge won it with 47 home runs.  Judge = 47

Notice 9 in 47-seconds, and 45 home runs total.

45 is the 9th triangular number
Major League Baseball = 45