I'm surprised that Joe Cleary's career ERA of 189.00 didn't make the list.
Ironically he also struck out 27.00 batters per game (9 innings).
Two records that have stood for 70 years and he did it all in less than an hour.
In 1945 he pitched 1/3 of an inning for the Washington Senators, gave up 7 earned runs and struck out the only batter he retired.
Just do the math.
