Russia's Tatyana Lysenko set a world record in the women's hammer with a throw of 77.06 metres, bettering the previous mark by almost a metre.
Romanian Mihaela Melinte's record of 76.07 metres had stood since 1999.
Lysenko set the new mark with her sixth and final attempt at the Vladimir Kuts Memorial meeting in Moscow's Luzhniki Olympic Stadium on Friday night.
The 21-year-old from the small town of Bataisk in Russia's south has been in great form in recent weeks.
On her third throw she bettered her own national record of 75.95 metres set at last month's Moscow city championships. She had another throw of 75.95 at the Russian championships in Tula three days ago.
Isinbayeva Record
Olympic champion Yelena Isinbayeva of Russia broke the women's pole vault record for the second time in 11 days at the IAAF Super Grand Prix meeting in Madrid yesterday.
The 23-year-old cleared 4.95 metres to break her previous record of 4.93 set in Lausanne on July 5.