Australia's Olympic champion Nina Kennedy kicked off the Zurich Diamond League by winning the women's pole vault on Wednesday.
The event was held in the main hall of the Swiss city's train station, on a raised runway, with fans and passers-by packed in close to the action.
Kennedy managed a best of 4.87 metres for her third consecutive win in Zurich.
Canadian Alysha Newman, the bronze medallist at the Paris Games, was second with 4.82m.
Newman beat American Katie Moon, Tokyo Olympic champion and two-time world gold medallist, on countback, the pair having both cleared the same height.
The main programme of the Diamond League is slated for the Letzigrund Stadium on Thursday.