Germany's Thomas Rohler won the finest javelin contest ever staged at Eugene's Hayward Field ©Getty Images

Germany’s Olympic javelin champion Thomas Rohler produced a meeting record of 89.88 metres to finish clear of his two home rivals - world champion Johannes Vetter and Andreas Hofmann - on the opening night of the International Association of Athletics Federations Diamond League event in Eugene, Oregon.

In the last major meeting to take place within the historic Hayward Field venue before it is redeveloped next month in preparation for the 2021 IAAF World Championships, Rohler could only manage two scoring throws from his six efforts, but his fourth round effort was enough to win in front of a crowd of 7,500.

Vetter, whose personal best of 94.44 from last season put him second on the world all-time list behind Jan Zelezny of the Czech Republic - displacing Rohler, who started last season with an effort of 93.90 - had twice broken the meeting record with efforts of 88.37 and 89.34.

That spurred his domestic rival into a decisive response, although Hofmann - who threw a personal best of 91.44 in Rehlingen last weekend, finished with a flourish as he secured third place with 86.45.

In what was the only Diamond League-scoring event of the evening, the 2016 champion and 2017 world silver medallist Jakub Vadlejch of the Czech Republic finished fourth with 85.40.

“It’s hard to predict the javelin,” Rohler said after the finest javelin contest the old stadium had ever witnessed.

“I’m sure someone will throw the world record one day.”

If they do, that someone looks like being a German…

The historic setting of Hayward Field - which will be redeveloped next month - on the opening night of the IAAF Diamond League meeting ©Twitter
The historic setting of Hayward Field - which will be redeveloped next month - on the opening night of the IAAF Diamond League meeting ©Twitter

World outdoor and indoor champion Sam Kendricks secured a home victory in a super-talented pole vault field with a best effort of 5.81 metres.

The US Army Reserve Officer finished 10 centimetres clear of Sweden’s 18-year-old World U20 record holder Armand Duplantis, who finished ahead of Poland’s world silver medallist Piotr Lisek on countback.

The young Swede held the lead after being the only competitor to reach 5.81 without a failure, but could go no further.

France’s 31-year-old world record holder Renaud Lavillenie could only finish fifth with 5.56 – which he only cleared at the third attempt - one place ahead of Canada’s 2015 world champion Shawnacy Barber, who had a best of 5.41.

Brazil’s Olympic champion Thiago Braz failed to clear the opening height of 5.41, as did Germany’s 2013 world champion Raphael Holzdeppe.

Ethiopia’s 18-year-old World U20 3000m champion Selemon Barega won a fast-finishing, tactical Two Miles race in 8min 20.01sec in what was his debut at the Prefontaine Classic meeting, being held for the 44th time.

He produced a 54sec final lap to finish 0.90sec clear of home athlete Paul Chelimo, the naturalised Kenyan runner who has won Olympic silver and world bronze for the United States in the last two years.

Third place went to Bahrain’s Birhanu Yemataw Balew in 8:21.54.

Home athlete Sam Kendricks, the world pole vault champion, defeated a stacked field on the opening night of the IAAF Diamond League meeting at Eugene, Oregon ©Getty Images
Home athlete Sam Kendricks, the world pole vault champion, defeated a stacked field on the opening night of the IAAF Diamond League meeting at Eugene, Oregon ©Getty Images

There was disappointment for many at the University of Oregon track as former student Edward Cheserek, who ran the world’s second fastest indoor mile of 3:49.44 last year, finished back in the pack in 15th place in 8:31.43, two places behind Ethiopia’s world 5000m champion Muktar Edris, who clocked 8:28.11.

Emmanuel Kipkurui Korir of Kenya won in dramatic fashion in the men’s 800m, recovering from being tripped on the final lap to overhaul last year’s Diamond League champion Nigel Amos, the London 2012 silver medallist, to finish his Eugene debut in a season’s best of 1: 45.16.

It was a winning return for Korir to the track on which he had won the US collegiate title the previous year.

The Botswana athlete clocked 1:45.51 in second place.

Kenya’s 20-year-old world bronze medallist Kipyegon Bett was fourth in 1:46.46.