With his 25 goals, he contributed to 38% of Leverkusen's total goal output for the year. The 29-year-old also led the Bundesliga with shots taken on goal per game (3.6 on average). He also recorded seven assists, which was tied for the club lead at Leverkusen. Kießling also led the Bundesliga in aerial duels per match (5.4) – thanks to his height (191 cm) – and also led the league in fouls committed per match (2.6). He was also a scoring threat inside the box, scoring 24 of his 25 inside the area. He was included in the Bundesliga Team of the Season and was voted as the league's fourth best player overall. He finished the season with 27 goals in 43 matches in all competition.