Father, Hans-Karl, works for an electronic planning company; mother, Hildegard, is a housewife; sister, Michaela.
Idols growing up were Andre Agassi, Pete Sampras and countryman Thomas Muster.
Favourite shot is forehand and favourite surfaces are clay and slow hard courts.
Named ATP Doubles Team of the Year in 2018 (w/Pavic).
In October 2010, opened DNA Tennis Academy in Graz, Austria.
Hobbies include spending time with friends, playing cards and enjoying a glass of sweet wine.
Wife, Jessie; daughters, Leah and Amelie.
(UPDATED 8 JULY 2019)
Finished 2018 as World No. 1 in team rankings w/Pavic. At age 38, oldest member of year-end No. 1 team since Stewart, 38, in 1984. First Austrian to finish No. 1 in singles, doubles or team rankings. Achieved career-high No. 2 in doubles on 28 May 2018 after winning Geneva title w/Pavic. Reached career-high No. 82 in singles on 7 August 2006 following run to Sopot QF.
Qualified for Nitto ATP Finals in 2009 w/Kubot, 2010 w/Kubot and 2018 w/Pavic. Also played in 2017 w/Pavic as ALT.
Boasts 22 ATP Tour doubles titles with 10 different partners, including 5 w/Kubot and 6 w/Pavic. Won career-high 4 titles in 2018 w/Pavic, including Doha, Auckland and Geneva. Went 17-0 w/Pavic to begin 2018 season and earned career-high 55 doubles wins overall. Enjoyed 400th doubles win of career in 2019 Geneva final w/Pavic(d. Ebden/Lindstedt).
Captured 1st Grand Slam title at 2018 Australian Open w/Pavic, winning 4 matches in 3 sets and 2 in 3rd-set TBs. Also advanced to 2017 Wimbledon and 2018 Roland Garros finals w/Pavic. Won 2017 Wimbledon SF over Mektic/Skugor 17-15 in 5th before losing final to Kubot/Melo 13-11 in 5th.
Reached 13 SFs but only 1 final at ATP Masters 1000 events. Received 1R bye and QF walkover en route to 2018 Monte-Carlo final w/Pavic.