When racing in her season-opening events, British wheelchair racer Hannah Cockroft achieved a fourth world record in three days.
On the final day of the Sharjah International meeting on Wednesday, the seven-time Paralympic gold medalist improved upon her previous personal best time in the 400 meters.
In a run of 52.80 seconds, she beat her previous record from 2021 by 1.19 seconds.
The 30-year-old broke her own 200m, 800m, and 1500m world records in the T34 division on earlier days.
While she gets ready for the World Championships in July in Paris, where she will race over 100 meters and 800 meters, Cockroft will next compete in the World Para-athletics Grand Prix competition in Dubai, which starts on Sunday.