Earned Run Average: "is determined by dividing the number of earned runs allowed by the number of innings pitched and multiplying by nine."
So let's do the math. 7 runs given up with only 1 out for the Cubs, 1/3 of an inning. So 7 divided by 1/3 equals 21 and multiplying by 9 innings--which, thanks to all goodness and kindness in the Universe, Dempster did not throw that day--yields us, cubs fans and fellow sufferers, an ERA of one-hundred-eighty-nine' for 9 innings if the slaughter continues.
[Dempster imploded again in the first inning of the opener of the four-game series, allowing seven runs on four hits, four walks and a hit batter while retiring only one of the 10 hitters he faced. It was the shortest start of Dempster's career. He lasted two-thirds of an inning while starting for the Marlins against the Braves on Oct. 5, 2001.]