Chase Jackson threw 21.02m to set a North American record in Berlin. She became the second woman in 14 years to exceed 21 metres. Jackson improved her own US record from June.

Jackson's throw surpassed Cuba's Belsy Laza's 32-year-old record of 20.96m. Only Jessica Schilder has thrown further this year. Jackson will train in Berlin before the Diamond League final. Read more racing coverage.

Rajindra Campbell set a Jamaican men's record of 22.59m in Brescia. Amy Hunt won the 100m title in Brescia, fresh from European Championships gold. Related: John Wright sets new M65 100m world record at World Masters Champs.

This original Runner World brief is based on reporting from Athletics Weekly. Visit the source for its complete reporting, context and any later corrections.