The annual Warsaw Uprising Run was held to commemorate the wartime insurrection, which broke out in the city 82 years ago.
The 5- and 10-kilometre routes led around the city centre and close to sites where heavy fighting took place during the failed uprising.
The Warsaw Uprising began on August 1, 1944 and lasted 63 days before being put down by better equipped and more numerous German forces.
The insurgency resulted in the deaths of around 18,000 Polish fighters and 200,000 civilians, according to some estimates.
It was the largest military operation by any resistance movement in Europe against the Nazi Germans during World War II.
The Warsaw Uprising Run, which has a tradition going back 35 years, is part of a series of three major patriotic runs in Warsaw that every year celebrate key events from the nation's history.
The other two are the May 3rd Constitution Run, which honours an 18th-century Polish constitution that was the first such modern set of laws in Europe and the second worldwide, and the Independence Run, which celebrates the restoration of the country’s independence on November 11, 1918.
Tens of thousands of runners take part in these three events every year.
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Source: IAR, polskieradio24.pl, tvp.pl