Completed the following sentence: In 1933, Oversloot broke the national record in 100 m backstroke set by Braun and became the national champion.<unk> Completed the following sentence: In 1933, Oversloot broke the national record in 100 m backstroke set by Braun and became the national champion. <unk> <unk> <unk> <unk> <unk>
1934 European Aquatics Championships.