Simplify the following text for a Grade 10 native English-speaking person.
Original: On February 13 , 1960 , Gimnasia was therefore crowned champion of the Gobernador Alende Cup , at the stadium of its classic archrival , located at the intersection of the 57 & 1 streets of La Plata .
Simplified: On February 13 , 1960 , Gimnasia was crowned champion of the Gobernador Alende Cup , at the stadium of its archrival .