The deal is worth $31 million guaranteed.
O’Day was by far the biggest fish on the free agent market this winter for teams seeking bullpen help, and he found himself a closer-like contract. He registered a 1.52 ERA, 0.93 WHIP, and 82/14 K/BB ratio in 65 1/3 innings this summer for the O’s and boasts a 1.92 ERA in 263 innings since 2012.
The 33-year-old right-hander is presumably going to slide back into his familiar setup role ahead of Orioles closer Zach Britton.
Washington reportedly came in second place here.