Tonka Ivanova Petrova (; born 1 February 1947) is a Bulgarian former middle-distance runner.Tonka Petrova. sports-reference.com
She won a silver medal at European Indoor Championships in the 1500 metres run in Rotterdam in 1973. In 1974, she won a gold medal at the European Indoor Championships' 1500 m run in Gothenburg, and a silver medal in a 4 x 392 metres relay race with Bulgaria. She also competed in the women's 1500 metres at the 1972 Summer Olympics.
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