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Ran B-Rs stat lookup for "over 5.00 ERA and 1700 or more IP" and there's just one guy. When I run it for 4.99 I get 2, so the 2nd is Wright.
Jamie Wright has one solitary companion on this list, and his name is...
Sidney Ponson.
So not quite a singular feat, but lightning had to work hard to strike twice.
There are 20 guys with an ERA over 4.50 and that many innings, a list that includes our old friends Brett Tomko and Miguel Batista.
It's not an easy thing to do. Pitching that long while being that mediocre takes a number of factors to come together.
~G