Complex sentence: She won the Württembergian Championships in the high jump in 1935 and again on 30 June 1936 when, one month prior to the opening of the Olympic Games, she tied the German record by crossing 1.60 metres.
Split into simpler sentences: She won the Württembergian Championships in the high jump in 1935. On 30 June 1936, one month prior to the opening of the Olympic Games, she tied the German record by crossing 1.60 metres.