Switzerland's Matthias Kyburz claimed the fourth World Games gold medal of his career today as he won the men's middle distance orienteering event.
After winning bronze in yesterday's sprint competition, the Swiss competitor led a one-two for his nation after winning in a time of 34min 05.00sec at Trzebnica Aquapark.
Kyburz also won sprint, middle distance and relay gold at Cali 2013.
His compatriot Florian Howald finished 38 seconds behind in 34:43.00 to seal a sublime day for Switzerland.
The Czech Republic's Vojtech Kral sealed the bronze medal but was way behind Kyburz in 35:20.00.
Sweden's Helena Jansson won the women's middle distance title after posting a time of 34:44.00.
The gap between first and second was much shorter than the men's event with Russia's Natalia Gemperle crossing the line in second just three seconds behind in 34:47.00.
Sabine Hauswirth won a third medal of the day for Switzerland as she took bronze in 35:54.00.
Orienteering competition concludes tomorrow with the mixed team relay.
Powerlifting competition finished today with the men's and women's super heavyweight finals at the National Forum of Music.
The United States and Ukraine dominated the medals in both events, winning five out of the six available.
Bonica Lough struck gold for the US in the women's competition after lifting 763 kilograms for a total of 600.71 points.
Ukrainian Tetyana Melnyk secured silver on 598.36 while another American, Liane Blyn, completed the podium on 590.07.
Oleksii Rokochiy of Ukraine prevailed in the men's event after amassing 632.50 points.
American Joseph Cappellino claimed silver on 613.13 while Kazakhstan's Nurlan Yeshmakhanov rounded out the podium with 603.70.
Indoor rowing, an invitational sport here, also took place today with four gold medals awarded at the Multifunctional Hall.
Invited sports, whose world federations are not members of the International World Games Association, will not be included in the final medal classification.
There was delight for hosts Poland as Artur Mikolajczewski set a World Games record in the men's lightweight 2,000 metres final with a time of 6:08.2.
Germany's Oliver Zeidler took gold in the men's open weight 2,000m event in 5:42.0, also a World Games record.
Austria's Anna Berger prevailed in the women's lightweight 2,000m with her time proving to be a World Games record of 7:12.7.
The open weight crown went to Ukraine's Olena Buryak in 6:22.8, a world record.