Hannah Cockroft contributed a third gold as Great Britain finished the IPC Athletics World Championships in Doha on a high.
The 23-year-old from Halifax easily added the 400m title to the 100m and 800m golds she had won earlier in the T34 section.
Cockroft was the main contributor as Great Britain prepared to head home with 13 golds.
In the other closing action, the women’s T35-38 4x100m relay team smashed the world record in 52.22 seconds and Hollie Arnold retained her F46 javelin title.
Cockroft won in a new championship best of one minute 2.66 seconds, almost two seconds ahead of American Alexa Halko with 14-year-old Briton Kare Adenagen winning a second bronze.
Cockroft had been beaten by Adenagen when the pair had last clashed over 400 metres and she said it was great to prove that she was not past her best.
Great Britain finished with 32 medals, more than at Lyon two years earlier and higher than their target.
Paralympic head coach Paula Dunn said: ““We came out to Doha with the aim of winning 26-30 medals, 10-12 of those being gold and we hit that objective before we even started the final session.
“We’ve got a huge two years ahead with both Rio and a home championships in London on the horizon and I am confident that we can replicate and even surpass the performances we’ve seen over the last 10 days of action.”
Cockroft added: “The whole point of a World Championships is to get the medals. That’s what people remember, not times, and I just needed to come here and prove that I’m still the best in the world.”