The 29-year-old Pole reached the top of a 15-metre wall in 6.24 seconds in the Italian capital, public broadcaster Polish Radio’s IAR news agency reported.
She improved on her previous world record of 6.25 seconds that she set in April, Polish state news agency PAP reported.
Mirosław finished fourth in the women's climbing competition at the Tokyo Games in 2021, narrowly missing out on an Olympic medal.
(gs)
Source: IAR, PAP, polskieradio24.pl