— Presidents Race: Yes, the Nationals will have their mascot race during the fourth inning. A bit of suspense is gone now, though, because Teddy Roosevelt finally won in Washington's final regular-season game on Oct. 3 — his only victory since the fourth-inning "contest" involving 10-foot foam renderings began in 2006.
— A-ha Moment: One of the songs played in later innings before Morse's at-bats is "Take on Me," a 1980s hit from the Norwegian group A-ha, and the crowd really gets into it. They know the lyrics well — "Take on me, take me on. I'll be gone, in a day or two" — and always stretch out that final word, and its high-octave conclusion, for several seconds. Asked what he expects Wednesday, Morse smiled and replied: "It'll be magical. I know it will be."