The 30-year-old claimed bronze at the European Championships, which also acted as the fourth World Cup leg, last week and made an impressive jump of two places to win in Koenigssee.
Rudman topped the timesheets in both runs in Germany – holding a 0.15 second advantage over world champion Marion Thees after her first outing of 53.26.
And she extended that too an impressive half a second and after a second run of 52.89 for 1:46.15 minutes overall with Thees holding on for silver ahead of Canadian Mellisa Hollingsworth.
Thees clocked 1:46.65 overall and Hollingsworth 1:47.19 while Rudman’s fellow Brit Elizabeth Yarnold, making her World Cup debut, was 14th overall in 1:49.20.
With five World Cup legs down and three to go Rudman, who has finished as the overall runner-up for three years running, sits third in the overall rankings behind leader Thees and then Hollingsworth.