The latest World Athletics Continental Tour Gold meeting of the season, which will take place exactly a month before athletics gets underway at the Tokyo 2020 Olympics, will present a men's event involving Poles Pawel Fajdek, four times the world champion, and Olympic bronze and European gold medallist Wojciech Nowicki.

They will both have in mind the recent United States record of 82.71 metres set at the nation's Olympic trials in Eugene, Oregon by Rudy Winkler.

The women’s competition involves Malwina Kopron, world bronze medallist in 2017 and winner of last weekend’s Polish Championships in Poznan, and Anita Wlodarczyk, twice an Olympic champion and four times a world gold medallist, who is still recovering her form after surgery.

Like their male counterparts, they will have noted with interest the action at the US Olympic trials, where Deanna Price became only the second woman to throw beyond 80m, reaching 80.31m to sit second on the all-time list beneath Wlodarczyk, who set the world record of 82.98m on the Polish soil of Warsaw in 2016.

Elsewhere in compelling field competition, another home hope for Tokyo, shot putter Michal Haratyk, is also competing in an event recently shaped by American exploits at the trials, with Olympic champion Ryan Crouser setting a world record of 23.37m.

Haraytk, the European outdoor champion and European indoor silver medallist earlier this year, faces a field that includes New Zealand’s 2017 world champion Tom Walsh.

Staying in the field, American Chris Nilsen is venturing outside his home country to compete overseas for the first time this outdoor season.

Having won the men’s pole vault at the US Olympic trials with 5.90m, Nilsen faces strong international opposition including home favourites Piotr Lisek and Pawel Wojciechowski.

Lisek is a three-time World Championship medallist, while 2011 world champion Wojciechowski is competing in his home town.

Brazil’s Rio 2016 champion Thiago Braz set a season’s best of 5.80m last weekend in Leverkusen, tying with Asian champion Ernest Obiena of the Philippines, and both are in the field in Bydgoszcz.

On the track, Poland’s European champion Justyna Święty-Ersetic will carry home hopes in the women’s 400 metres, but the presence of 18-year-old Namibian Christine Mboma, who has already clocked 49.22 this season, will be testing.

The meeting will mark the first outdoor race of the season for world silver medallist Lamecha Girma in the men’s 3,000m steeplechase.

The Ethiopian was in fine form during the indoor season earlier this year, clocking personal bests of 3min 35.60sec for 1500m and 7:27.98 for 3,000m.

Compatriot Chala Beyo, the 2016 African champion, could be Girma’s toughest opponent.

There will also be huge home support for Adam Kszczot in the men’s 800m as he seeks to regain the form that has earned him two world silvers and one world indoor gold.

But Kenya’s Cornelius Tuwei, who won in Turku at the start of the month, and Britain’s Jamie Webb, have both been close to sub-1min 44sec runs this season and start as favourites.

Home expectations in the women’s 800m will be carried by Joanna Jóźwik, the European indoor silver medallist.

Olympic silver medallist Orlando Ortega of Spain and European champion Elvira Herman of Belarus head the respective line-ups for the 110m and 100m hurdles.