The places below where there are red lines are days off, either by schedule or by manager's choice. DH stands for doubleheader. The highlighted games are days he didn't play the whole game, either being out early in a blowout (1), pinch hitting/running and staying in or coming in as a defensive replacement.
So he did have multiple back-to-back (or more) outings.
But Buxton's defense, today isn't a day off after one day of action, considering he played center and then DHed in St. Paul on Thursday and Friday.
(I didn't see Buxton, so this isn't a reflection on how he looked, just a summary of when he's played.