By SABC Sport
7th August 2024
Hudson-Smith was leading into the closing stages when Hall found another gear to snatch gold in a personal-best 43.40.
The Brit finished four hundredths of a second behind to lower his own European record, with Zambia's Muzala Samukonga claiming bronze.
Hall's winning time to beat world silver-medallist Hudson-Smith was good enough for the fourth-fastest in history at 400m.
Hudson-Smith finished last in the final on Olympic debut at Rio 2016, a race won by South Africa's Wayde van Niekerk in what remains a world record time.
The 29-year-old was leading the chase with 50 metres to go as he battled Trinidad and Tobago's Jereem Richards, who was hot on his tail.
But world bronze medallist Hall surged forward in the final 50 metres in a thrilling finish to seal his own maiden Olympic medal.