Sandilands was third at the bell in his race but the Scot timed his run to perfection, accelerating away over the final 300m to finish clear of Portugal’s Sandro Baessa (3:49.46) with Brannigan, the Rio gold medallist, third (3:49.91).

“It’s an amazing feeling,” he said after becoming the second consecutive British winner of the race following fellow Fife AC club-mate Owen Miller, who triumphed in Tokyo in 2021.

“I’ve put in so much hard work and I want to thank my family and friends, and my coach Steve Doig.

“I knew I had the speed in me at the end from my training.

“The timing has to be perfect and I went for it, and the world record means a lot. It’s incredible.”

There was a silver for wheelchair racer Marcus Perrineau-Daley in the T52 100m event on his Paralympic debut.

The 35-year-old Londoner, who was paralysed in a motorbike accident in 2014, led Belgian Maxime Carabin at the halfway mark before the world-record holder came through strongly to win.