[9] On 20 August 2016, Kretzschmar was handed his first Woking start by manager Garry Hill in a 3–1 home defeat against Dagenham & Redbridge, before being replaced by Gozie Ugwu in the 73rd minute.

[10] On 1 January 2017, Kretzschmar scored his first Woking goal in a 2–1 home defeat against local rivals Aldershot Town, equalizing two minutes after Scott Rendell had given the visitors the lead.

[11] On 28 February 2017, Kretzschmar scored Woking's winner in their 1–0 victory against National League promotion hopefuls Dover Athletic, netting into an open goal after academy graduate, Charlie Carter had squared the ball.

[12] On the final day of the 2016–17 campaign, Kretzschmar scored in Woking's 1–1 draw with Dagenham & Redbridge, a goal which saw the Cards survival in the National League confirmed.

[15] On the opening day of the campaign, Kretzschmar made his Hampton & Richmond debut during their 1–1 away draw with East Thurrock United, playing the full 90 minutes.

[18] On 2 December 2017, Kretzschmar netted his tenth goal in all competitions during Hampton & Richmond's league tie against Weston-super-Mare, completing the Beavers' comeback in the 79th minute to secure a 2–1 victory.

[22] On the opening day of the 2018–19 campaign, Kretzschmar marked his Woking return with the winner in their 1–0 away victory over East Thurrock United, converting a penalty with seconds remaining.

[31] On 19 October 2019, Kretzschmar netted his first goal of the campaign during a 1–1 away draw with Ebbsfleet United in their FA Cup fourth round qualifying tie, converting a 91st minute penalty to take the fixture to a replay,[32] which the Cards eventually lost 1–0.

Ahead of the 2021–22 campaign, Kretzschmar penned a further one-year deal and went onto net a decisive brace in the Cards' opening fixture of the season against Wealdstone, in which the Surrey-based side were victorious, 2–1.