In 2006 he was signed by the Anaheim Angels as an amateur free agent. In 2007 he shot through all levels of A ball saving a total of 21 games going 7-4 with a 2.53 ERA. The Angels were impressed and he made the 2008 club out of Spring Training as a reliever. He appeared in thirty games going 0-1 with a 4.47 ERA. In 2008 he was a Rule V draft selection of the New York Mets.
O'Day began the year with the Mets making his debut in Cincinnati in the third game of the season relieving Oliver Perez after an eight run outing. O'Day would only pitch in four games with the Mets, three innings of work overall. On April 11th he allowed two runs on three hits to the Marlins in Florida pitching just 1.1 innings. On April 22nd he was placed on waivers & was picked by the Texas Rangers.
With nothing else to do, he borrowed team mate Kason Gabbard's #30 and went on to pitch. Eventually his uniform with O'Day #56 was ready the next day. He went to have a good year in Texas going 2-1 with 21 holds posting a 1.94 ERA in 64 appearances.
He remained with the Rangers for through 2011 getting to two World Series with them. In 2010 he led the staff with 72 appearances going 6-2 with 21 holds & a 2.03 ERA. In the ALCS he appeared in three games taking a loss in Game #1. In 2011 he only pitched in 16 games and was injured missing the rest of the year. He was placed on waivers in November & picked up by the Baltimore Orioles.
In 2012 he was back as a solid middle reliever going 7-1 with 15 holds & a 2.28 ERA making 69 appearances for a surprising Oriole team that won an AL Wild Card spot.
Post Season: He pitched two scoreless innings of the AL Wild Card game, as the Orioles beat the reigning AL Champion Texas Rangers. O'Day made four appearances in the ALDS pitching five scoreless, hit less innings.
In 2013 he returned with the Orioles going 5-3 with a pair of saves posting a 2.18 ERA with 20 holds.
For the 2014 AL East Champion Orioles the side arm thrower, was second in the O's bullpen to Zach Britton in ERA (1.70) & appearances (68). He finished 14 games going 5-2, which posted the staff's second best win % (7.14%).
Post season: In the 2014 ALDS against the Detroit Tigers, O'Day gave up one run in his only appearance, coming in the Game #1 Orioles win. In the ALCS he made three appearances, taking two of the series losing decisions to the Kansas City Royals.
In Game #1 he gave up a lead off 10th inning HR to Alex Gordon breaking the 5-5 tie. He then walked Salvatore Perez who turned out to be the winning run when Mike Moustakas hit a two run HR off Brian Matusz, later in the inning.
In Game #2 he gave up a lead off walk in the 9th inning of a 4-4 tie. He was relieved by Zach Britton who gave up two runs including Infante which turned out to be the winning run. O'Day was charged with the loss.
In a seven year career he is 25-11 with eight saves, 349 strike outs & 97 walks in 378 innings pitched in 391 appearances.
Family: O'Day has been married to FOX News reporter; Elizabeth Prann since 2010. For FOX Prann is based in the Washington D.C. area & also is a rotating anchor for the America's News on Saturday afternoons.
Elizabeth graduated from the University of Florida & began her career working locally in Florida. In 2006, she began as a production assistant for the show; On the Record With Greta Van Susteren. She helped launch Gretawire.com & became a FOX TV correspondent in 2010.