Valerie Adams continued her amazing streak of unbeaten competitions with a dominant win in the London Diamond League shot put early on Sunday morning (NZT).
By winning the event, the double Olympic champion is now unbeaten in 38 competitions stretching over almost three years.
Adams' best throw of 20.90 metres is the best in the world this year and 20 centimetres better than her 2012 Olympic gold medal performance in the same stadium.
The throw improved on her own 2013 world leading distance of 20.88m and was well clear of her opponents, including the second and third best performers in the world this year.
Adams' series of 20.71m, 20.79m, 20.82m, 20.31m, 20.90m and 20.40m showed fantastic consistency. In comparison, neither of her two main rivals managed to surpass the 20m mark.
Adams commented that she was very happy with her performance to improve on her season best and, in the process, set a new London Diamond League record. She said she was looking forward to the Moscow world championships starting in two weeks.
At the world championships, Adams will attempt to win her fourth straight world title and tie the record for the most consecutive titles.
In addition, it is expected that Adams' other world championships medal, a bronze in 2005 is likely to be upgraded to silver by the IAAF following a historic positive test at those championships by arch rival Nadzeya Ostapchuk.