The podium performance for Walker is her fifth of the season and sees her move into second place on the world standings.
Monobob is set to make its debut at the 2022 Olympic Winter Games in Beijing, with Walker regarded as one of the leading athletes in the event.
The 29-year-old from Queensland was in second place after the first run, despite crashing on the last corner and sliding across the finish line on her side.
It is not uncommon for sleds to go down on the last corner in Winterberg, with it often referred to as the victory roll due to its close proximity to the finish line.
In the second and final run, Walker showed she was impacted by the previous run, recording the fastest time of the round finishing just 0.17 seconds behind first place with a two run combined time of 1:58.93 seconds.
The event was won by American Elana Meyers Taylor with a time of 1:58.76, with German Laura Nolte in third with a time of 1:59.01.
“I am really satisfied with what I have been able to produce so far this season in the monobob” ,said Walker after extending her podium streak to five straight events.
“I am really proud of how I have been able to put together races and continually be on the podium, so I hope I can continue to produce good results like this heading into the next weeks monobob race in in St Moritz and then also at the Olympic Winter Games.”
“A very exciting time but it isn’t over yet.”
Walker teamed up with brakewoman Kiara Reddingius to compete in the two-woman bobsleigh the following day, recording an eighth place performance, her second top-10 World Cup performance of the season.
Also in action for Australia in the Europe Cup series in Innsbruck, Austria, was Ashleigh Werner, who took home a silver and bronze medal in the monobob world series events and teamed up with brakewoman Tia-Clair Toomey-Orr to finish in fourth place in the two-woman bobsleigh.
In the skeleton World Cup event in Winterberg, Jacqui Narracott had one of her best results of the season, finishing in 11th place.
"Finally a decent result. 11th with the fourth fastest run of heat two is a pretty good way to start 2022, said the 2018 Olympian.
The Australian bobsleigh and skeleton athlete will compete next weekend at the final World Cup of the season in St Moritz, Switzerland.