The odds may be long, but there is a chance that two A’s may break a single season record set by yet another A. Imagine if Sosa and McGwire were both Yankees when they broke Ruth’s record, and just dial down the testosterone a few notches.
In 1990, Dennis Eckersley pitched 73.1 innings while giving up 5 earned runs, setting a record for the lowest ERA (0.6136) by a pitcher who pitched at least 50 innings. That comes to 1 earned run for every 14.2 innings. Brad Ziegler has already broken that record, though it ain’t over till the season ends. In fact, if Ziegler reaches more than 58.2 innings, he will even be able to afford to give up another run while still breaking the record.
With Joey Devine there is less room for error, but he has a shot. If he pitches 3.1 more scoreless innings and reaches 44, he will have matched Eckersley’s ERA. If then he pitches 6 more scoreless innings, he will have broken Eckersley’s record. It may be hard for him to pitch 9.1 scoreless innings in only 13 games, but he certainly has a shot, especially if Geren will on occasion let him go more than one inning when his pitch count is especially low.
This season is pretty much a bust, so the record books is one of the last things we have going. Has it ever happened that two teammates broke a single season record in the same season? Has it ever happened that the record was itself set by someone on the same team? Has it happened that each of them were essentially rookies, pitching in their first full season?