The result marks the fastest time by an Italian woman in the event for 17 years, since Libania Grenot set the national record of 50.30 seconds in 2009.
Narrow Victory Over Strong Field
Polinari held off a determined challenge from Bahrain's Kemi Adekoya, who finished second in 50.37 seconds. Chile's Martina Weil took third place with 50.43 seconds, while Ireland's Sharlene Mawdsley placed fourth with the same time.
The race showcased high-quality performances across the field, with Polinari demonstrating composure and strength in the closing stages to secure the victory.
Significant Milestone for Italian Athletics
Polinari's achievement represents a major breakthrough for Italian women's sprinting. Her time not only improves her personal best substantially but also signals a positive step forward for the nation's 400 metres prospects ahead of major international competitions.
The performance will boost confidence as Italy continues to develop talent in middle-distance and sprint events on the global stage. Polinari's success in Madrid highlights the growing competitiveness of Italian athletes in top-level meetings.
This result adds to an encouraging period for Italian athletics, with athletes delivering strong showings across various disciplines in recent competitions. Polinari will now look to build on this momentum as the season progresses.