A team has finished a game with 20-19-2 runs-hits-errors line 3 times since 1897, most recently San Diego Padres on 27 July 1996. That is about one every 147,668 team-games.
Box score for the most recent one ↗
20-17-0 20-17-2 20-18-0 20-18-1 20-18-2 20-19-0 20-19-2 20-19-1 20-19-5 20-20-3 20-20-2 20-20-1 20-20-0
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes