Ireland's Jason Smyth completed a World Para-athletics European Championship sprint double as he won the T13 100m final in a championship record of 10.66 seconds in Berlin.
Smyth's time left him 0.33 seconds ahead of Poland's Mateusz Michalski who also won silver in Tuesday's 200m.
County Londonderry man Smyth's victory was his 18th major championship title.
Smyth's Irish team-mate David Leavy was seventh in the T38 1500m with Eve Walsh Dann sixth in the women's T38m 200m.
Thirty-one-year-old Smyth, whose 200m gold on Tuesday also produced a championship record, improved his championship mark to 10.86 seconds in Thursday morning's heat before going 0.20 faster in the final.
Smyth has clocked 10.22 in able-bodied competition
The Eglinton man set his T13 world record of 10.46 seconds at the London 2012 Paralympics although he has clocked 10.22 in able-bodied competition.
"It's great to be here, Berlin have done a great job," said Smyth.
"I'm running better this year than I was last year and I'm in a much better place. I'm just going to keep building and hopefully continue to be successful."
Sixteen-year-old Walsh Dann, earning her first Great Britain senior vest at championship level, cut 0.60 off her personal best as she clocked 30.74 seconds.
Her British team-mate Sophie Hahn took gold in a championship record of 26.51 seconds as she finished ahead of Germany's Lindy Ave (27.24) and Hungary's Luca Ekler (27.92).
Leavy represented Britain at Rio Paralympics
Leavy, 26, represented Great Britain in Seven-a-Side Football at the Rio Paralympics but has since switched international allegiance to Ireland whom he represents in both sports.
The Downpatrick man was in contention over the opening couple of laps but dropped back to finish in four minutes 28.72 seconds which left him over 15 seconds behind France's winner Redouane Hennouni.
Hennouni (4:13.12) finished over three seconds ahead of compatriot Louis Radius (4:16.66) with Germany's Felix Kruesemann (4:21.60) earning bronze.
Also during the morning session, Smyth's team-mate Jordan Lee finished third in the men's T47 high jump.
The Kerryman cleared 1.75 metres to take the bronze medal behind gold-medal winner Alexandre Dipoko-Ewane of France and Spain's Daniel Perez Martinez.
Kildare wheelchair athlete Patrick Monahan narrowly missed out on a medal as he finished fourth in the T53 800m final.
Monahan's time of 1:51.76 left him 0.51 behind Italy's bronze medal winner Diego Gastaldi as French athletes Pierre Fairbank (1:43.74) and Nicolas Brignone (1:44.87) filled the first two positions.