The 14 walks received by the Twins matched a team record (Minnesota only) for a 9-inning game. The Twins drew 14 walks on May 29, 1963 against Washington and again on September 10, 1976 against the Royals.
The Royals walked 14 batters in a 9 inning game for the third time. In addition to the 1976 game against the Twins and tonight, they also walked 14 Yankees on May 14, 1980.
The major league record for most walks in a 9-inning game is 19 by Louisville against Cleveland on September 21, 1887. That was in the American Association.
The American League record is 18 by Detroit against Philadelphia on May 9, 1916 and by Cleveland against Boston on May 20, 1948.
The National League record is 17 and has been done three times, in 1887, 1903, and 1944.
The most walks received in a game of any length is 20 by Boston against Detroit on September 12, 1920 in a 12 inning game.