The Nationals optioned Beeter to Triple-A Rochester after Friday's game against the Angels.
Beeter pitched a perfect eighth inning Friday, lowering his ERA to 4.50 and his WHIP to 1.40 through 48 frames, but the Nationals will send him down to Triple-A nonetheless. Unless the 27-year-old is recalled to replace an injured player, he will spend the rest of the season in the minors, leaving Erik Tolman and Brad Lord as top candidates to pick up saves for the Nats down the stretch.