A team has finished a game with 19-19-0 runs-hits-errors line 10 times since 1897, most recently Cleveland Guardians on 11 July 2018. That is about one every 44,300 team-games.
Box score for the most recent one ↗
19-18-4 19-18-1 19-18-2 19-19-2 19-19-1 19-19-3 19-19-0 19-20-3 19-20-0 19-20-2 19-20-1 19-21-2 19-21-0
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes