2012 When incumbent Senate District 35 Republican Senator Jeffrey Haverly left the Legislature and left the District 35 seat open, Kirkeby was unopposed for both the June 5, 2012, Republican Primary[3] and also the November 6, 2012, General election, winning with 5,382 votes.[4]
2000 Kirkeby challenged incumbent House District 35 Republican Representatives Alice McCoy and William Napoli in the three-way June 6, 2000, Republican Primary, but placed third behind them;[5] they went on to win the four-way November 7, 2000, General election where Representative Napoli took the first seat and Representative McCoy took the second seat ahead of Democratic nominees Theresa Spry and Gary Sisco.[6]
2006 When House District 35 incumbent Republican Representative McCoy ran for South Dakota Senate and left a District 35 seat open, Kirkeby ran in the four-way June 6, 2006, Republican Primary and placed first with 858 votes (32.9%);[7] in the four-way November 7, 2006, General election incumbent Republican Representative Jeffrey Haverly took the first seat and Kirkeby took the second seat with 3,326 votes (31.6%) ahead of Democratic nominee Laurie Wudtke and Independent candidate John Buxcel.[8]
2008 When House District 35 incumbent Republican Representative Haverly ran for South Dakota Senate, Kirkeby ran in the three-way June 3, 2008, Republican Primary and placed first with 735 votes (43.2%),[9] in the four-way November 4, 2008, General election Kirkeby took the first seat with 4,556 votes (33%) and fellow Republican nominee Don Kopp took the second seat ahead of Democratic nominees Fern Johnson and Curtis Marquardt.[10]
2010 Kirkeby and Kopp were unopposed for the June 8, 2010, Republican Primary[11] and won the four-way November 2, 2010, General election, where Kirkeby took the first seat with 3,609 votes (35.3%) and Representative Kopp took the second seat ahead of Democratic nominee Sharon Green and Independent candidate Jay Pond.[12]