two years to the day after his "little league grand slam" against the new york mets, on september 8, 2017, taylor hit a bases-loaded line drive to center field off philadelphia phillies pitcher jake thompson that a leaping odubel herrera was unable to snare. taylor circled the bases on the play, which was scored an inside-the-park grand slam — the first in major league baseball since aaron altherr's on september 25, 2015. in the same game, taylor also singled twice and tripled, driving in a total of five runs, and recorded an outfield assist at home to preserve the nationals' lead in the eventual 11–10 victory. taylor finished the regular season batting .271/.320/.486 with 19 home runs, 53 rbis, and 17 stolen bases in 399 at bats.