Smyth, who won the 100m T13 title on Sunday (July 16), posted a season’s best time of 21.40sec with Namibia’s Johannes Nambala second in 21.81 and Poland’s Mateusz Michalski third in a personal best 21.86.

The five-time Paralympic gold medallist now has seven world titles to his name having also done the T13 double in 2006 and 2013 and claimed the 100m crown in 2015. 

"I think as time goes each major championship will get a little bit more special as my daughter gets older," Smyth said.

"I’m delighted to be done and I get to relax now.

"It’s obviously incredible to be here after the 100m on Sunday night where I didn’t feel like I could relax and enjoy it.

"But now that I'm done with a second gold medal, it’s incredible really."

World records continued to tumble on the fifth day of action with the United States' Isaac Jean-Paul getting in on the act in the men’s high jump T13.

The 24-year-old thrice broke his own world record of 2.10m, set in Los Angeles last month, on his way to victory with a mark of 2.17m.

Compatriot Tyson Gunter and Cuba’s Luis Felipe Gutierrez shared the silver medal with 1.88m.

"I could not hope for a better result," Jean-Paul said.

"I was thinking about the world record, but in the competition I just knew I wanted to go over the bar and jump these heights. 

"Coming to this stadium, I just wanted to jump and to have fun. 

"I am glad I managed to break the record in this beautiful stadium with these great fans."

Brazil’s Andre Rocha was also in world record-breaking form today in the men’s discus throw F52.

The 40-year-old has already broken the record this year, although it took him until the fourth round to pass the 20-metre mark when he threw a massive 23.80m.

Defending champion Aigars Apinis set an area record of 21.95m for silver, while Croatia’s Velimir Sandor won bronze with 17.95m.

Ukraine's Dmytro Prudnikov twice broke the men’s triple jump T20 world record on his way to gold.

The long jump bronze medallist on Sunday, the 27-year-old proved unbeatable this time around, adding 17 centimetres to the previous world record of 14.16m in the second round before managing a phenomenal 14.50m with his third attempt.

Prudnikov was joined on the podium by Portugal’s defending champion and previous world record holder Lenine Cunha, who posted a season's best 13.03m, and Argentina’s Alain Omar Villamarin, who set an area record of 12.57m.

Another world record out in the field came courtesy of Trinidad and Tobago’s Akeem Stewart with a throw of 57.61m in the men’s javelin F44.

Iceland’s Helgi Sveinsson was the runner-up with 56.74m, followed by Canada’s Alister McQueen with an area record of 55.72m.

Daniel Wagner of Denmark claimed his first world title in the men’s long jump T42, leaping a Championship record 6.50m in the third round to take the win ahead of Japan’s Atsushi Yamamoto.

The former world record holder won silver at the 2015 World Championships in Qatar's capital Doha, finishing behind Yamamoto who jumped a season's best 6.44m in the final round today.

Germany’s Leon Schaefer finished third with 6.25m.

Rio 2016 Paralympic gold medallist Breanna Clark of the US broke the women’s 400m T20 world record with a time of 56.33, taking 0.38 seconds off her own previous best mark set in Los Angeles last month.

Poland’s Barbara Niewiedzial took the runners-up spot in 59.56, while Ecuador’s Anais Maribel Lara Borja came third in a personal best 59.70.

There was also a Championship record in the men’s 400m T12 as Morocco’s Mahdi Afri triumphed in 48.60.

Silver medallist Luis Goncalves of Portugal managed a personal best 49.34, while bronze medallist Oguz Akbulut of Turkey achieved the same feat in 50.19.

Canada’s Brent Lakatos won the men’s 400m T53 event in a Championship record of 47.56, adding to his 200m success from Sunday.

Thailand’s Pongsakorn Paeyo came second in 47.97 with France’s Pierre Fairbank third in a season’s best 48.91.

Japan’s Tomoki Sato clinched the men’s 400m T52 crown with a Championship record of 56.78.

He held off the challenge of the US’s Raymond Martin, who had to settle for silver in 57.31.

Rounding out the podium was Japan’s Hirokazu Ueyonabaru in a season’s best 1:02.27.

Another Championship record came in the women’s 200m T36 as China’s Shi Yiting triumphed in 28.92.

Argentina’s Yanina Andrea Martinez claimed silver in 30.70 with South Korea’s Jeon Min-Jae third in 31.40.

The last Championship record of the day came in the final track event as Tunisia's Yassine Gharbi won the men's 200m T54 crown in 24.86.

Dutchman Kenny van Weeghel, a three-time winner of the 200m T54, finished second in 24.92 with Finland's Leo Pekka Tahti, the 100m T54 champion, third in 25.05.

There was plenty of success for China out in the field today with Zhang Liangmin claiming the women’s discus throw F11 title with a season’s best 35.11m and Wei Enlong coming out on top in the men’s shot put F46 with 15.64m.

Defending champion Yang Liwan prevailed in the women’s shot put F54 with 7.43m and the women’s discus F44 event also went the way of a Chinese competitor with Yao Juan triumphing courtesy of a season’s best throw of 39.72m to retain her title.

Poland’s Ewa Durska took top honours in the women’s shot put F20 with 13.18m, while Iran’s Amanollah Papi led an Iranian podium sweep in the men’s javelin throw F57 with a personal best 44.87m.

Mohammad Khalvandi took silver with 42.18m and Abdollah Heidari Til managed bronze with 41.83m, both season’s bests.

The men’s long jump T36 title was won by Ukraine’s Roman Pavlyk with a personal best 5.63m.

Other victors on the track included Paralympic champion Gerard Descarrega Puigdevall in the men’s 400m T11 final.

The Spaniard capitalised on late falls from defending champion and world record holder Daniel Silva of Brazil and former European champion Timothee Adolphe of France to take gold in 51.46.

Both Adolphe and Silva were ultimately disqualified with China’s Dongdong Di nipping in to claim silver in 53.38.

China’s Zhou Guohua posted a season’s best 12.16 to take gold in the women’s 100m T11, while the US’s Deja Young prevailed in the women’s 100m T47 with a season’s best 12.39.

South Africa won two gold medals late in the evening with Charl Du Toit coming out on top in the men’s 200m T37 in a season’s best 23.27 and Dyan Buis securing the men’s 200m T38 crown with a season’s best 22.67.

After five days of action, China lead the way in the medal standings with 14 golds, 11 silvers and seven bronzes.

The US are second with 14 golds, 10 silvers and 10 bronzes, while hosts Britain are third with 11 golds, two silvers and seven bronzes.

Action is due to continue tomorrow.