sentences:  In 2007, Ridgway had an ERA of 189.00.He gave up 7 earned runs in 1/3 of an inning.As of August 2019, Ridgway's 189.00 ERA in 2007 is the highest single-season ERA of any pitcher in MLB history, tied with Joe Cleary's 1945 season and Jack Scheible's 1894 season.