Completed the following sentence: In 2013 Ludwig formed a beach partnership with Kira Walkenhorst. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Ludwig and Walkenhorst won the
2016 Summer Olympics, defeating Brazil's pair of Ágatha and Bárbara in straight sets of 21-18 21<unk>14 in the final.