The 958 participants gathered in the mist on Sunday morning for Michendorf's eighth annual pre-Christmas Nikolauslauf (Nicholas run).
The Santa Claus costume was compulsory, but runners wore an array of different running shoes and tracksuit bottoms.
The fastest male Father Christmas finished the longer ten-kilometre course in 33 minutes and ten seconds, while the fastest female Santa made it in 44 minutes and nine seconds.
The runners' club said more children and families took part in this year's event.
The red-clad participants disappeared into the fog. Photo: DPA
Michendorf wasn't the only place to host a Nikolauslauf - Cologne and Tübingen were among others to put on runs, but did not insist on participants wearing the costumes.
The Tübingen Nikolauslauf half marathon has been going since 1976, and this year 2,662 runners crossed the finish line, according to the event website. Sabrina Mockenhaupt finishing first among women with a time of one hour, 20 minutes and one second, and Jens Ziganke finished first among men at one hour, ten minutes and 33 seconds
Mockenhaupt was photographed winning the race without a costume, alongside a keenly dressed Santa Claus.