Poland's Joanna Jóźwik and Patryk Dobek grabbed the gold in the 2x2x400m mixed relay on Saturday, and the Polish team of Zuzanna Hulisz, Krzysztof Kiljan, Klaudia Wojtunik and Damian Czykier took the silver in the shuttle hurdles relay.
Members of the Polish shuttle hurdles relay team celebrate their second-place finish. Photo: PAP/Andrzej Grygiel
Meanwhile, the Polish women's 4x100 m relay group of Paulina Guzowska, Klaudia Adamek, Katarzyna Sokólska and Pia Skrzyszowska secured a berth at this summer's Olympic Games in Tokyo.
Several hundred athletes from more than 30 countries have flocked to Poland to compete in the 2021 World Athletics Relays at the Silesian Stadium in Chorzów on May 1 and 2.
The host nation has fielded a team of more than 40 athletes to represent it in all competitions making up the two-day event, including the 4x400m and 4x200m.
Poland's Dobek last month claimed 800m gold at the European Athletics Indoor Championships on home soil.
Source: onet.pl, worldathletics.org, pzla.pl