[1] Kraft then started out at Sportfreunde Daaden, VfB Wissen and SG Betzdorf before joining Bayern Munich in 2004.

[15][16][17] After two years being promoted to the Bayern's reserve team, Kraft finally played in their first game in the newly formed 3.

Liga on 27 July 2008 against Union Berlin, as the club's reserve team won 2–1 in the opening goal of the season.

[19][20][21][22][23] Kraft, along with teammates Holger Badstuber and Thomas Müller, having been an unused substitute in a number of first-team matches in the 2008–09 season.

[24][25][26][27][28] However, during a 2–0 win against Carl Zeiss Jena on 1 March 2009, he suffered a broken jaw and a concussion that saw him substituted in the 19th minute.

[56][57] His next appearance for Bayern Munich came on 8 December 2011 against Basel in the UEFA Champions League match and kept a clean sheet, winning 1–0.

[60][61][62] Kraft made his Bundesliga debut as Bayern Munich's first-choice keeper against VfL Wolfsburg on 15 January 2011 and set up the club's only goal of the game, in a 1–1 draw.

[65][66][67][68][69] During a match against Mainz 05 on 19 February 2011, Kraft suffered a bruised skull when he collided with Petar Slišković and was substituted in the 46th minute, as the club won 3–1.

[70][71] Kraft returned to the starting line–up and produced top performance with several impressive saves to help FC Bayern Munich to a 1–0 win on 23 February 2011 in a round of 16 Champions League clash against Inter Milan.

[75] Van Gaal – who was already due to leave – was sacked early, and temporarily replaced by his assistant Andries Jonker.

Bundesliga champions Hertha BSC announced that they had signed a four-year deal with Kraft on a free transfer and will join the club on 1 July 2011.

[84] Ahead of the 2011–12 season, he found himself competing with Maikel Aerts and Sascha Burchert over Hertha BSC's first choice goalkeeper role.

[99][100] Two weeks later against Wolfsburg on 29 October 2011, however, he suffered a concussion following a collision with Mario Mandžukić and was substituted in the 38th minute, as the club won 3–2.

[109][110] Following Hertha BSC's relegation, Kraft, along with his four teammates, were involved in an incident with referee Wolfgang Stark, resulting in an investigation by the German Football Association.

[117] Having served a five match suspension, he returned to the starting line–up against VfR Aalen on 16 September 2012 and kept a clean sheet, as the club won 2–0.

[118][119][120] Since returning to the starting line–up, Kraft regained his place as Hertha BSC's first choice goalkeeper for the club and contributed into helping them reach the top of the table.

[128][129] He then helped Hertha BSC achieve direct promotion to the top-flight Bundesliga for the 2013–14 season by beating SV Sandhausen 1–0 on 21 April 2013.

[133][134] In the opening game of the 2013–14 season, Kraft made an impressive start for Hertha BSC when he helped the side beat Eintracht Frankfurt 6–1.

[142][143][144] After the match, Jos Luhukay defended his performance and responded to calls to drop Kraft as the club's first choice goalkeeper by disagreeing with his critics and maintain on using him.

[172] Two months later on 15 February 2015, Kraft was given Hertha BSC's captaincy for the first time, starting the whole game, in a 2–0 loss against SC Freiburg.

[199][200][201] Despite suffering two separate injuries, Kraft made one appearances for the club, starting the whole game, in a 2–0 loss against Bayern Munich on 23 April 2016.

Kraft made his only appearance of the 2016–17 season, coming against Brøndby in the second leg of the UEFA Europa League Third Round, as Hertha BSC lost 3–2, resulting in the club's elimination.

[212] On 20 August 2017, Kraft made his first appearance of the 2017–18 season, starting the whole game, as Hertha BSC's reserve team won 1–0 against Wacker 90 Nordhausen in the first round of the DFB–Pokal.

[213] A month later on 20 September 2017, he made his first team appearance of the season (and his UEFA Europa League debut), starting the whole game, and kept a clean sheet, in a 0–0 draw against Athletic Bilbao.

[215][216][217] Following the absence of Jarstein, Kraft made his return to the league starting line–up for the first time in two years for Hertha BSC against Borussia Dortmund on 20 January 2018, as the club drew 1–1.

[225] But he made his first appearance for Hertha BSC, coming on as a second-half substitute for Jarstein, as the club lost 3–1 against Werder Bremen on 25 September 2018.

[236][237][238] On 30 October 2019, he made his first appearance of the season against Dynamo Dresden in the second round of the DFB–Pokal, and helped Hertha BSC win 5–4 in a penalty shootout following a 3–3 draw.