China broke six world records and netted another 13 gold medals on the sixth day of competition at the Rio Paralympics on Tuesday.[Special coverage]
Four of the records were set by the country's swimmers, with the other two coming in the 100m and long jump athletics events.
China's gold tally stood at 63, with another 51 silver and 33 bronze medals at these Games. Britain were second in the standings on Tuesday night with 34 gold, followed by Ukraine (27), the United States (21) and Brazil (10).
The first record to tumble came when Hu Jianwen set a new benchmark in the men's 100m T38 final. The 29-year-old clocked 10.74 seconds to beat the previous mark set by Australia's Evan O'Hanlon by five hundredths of a second.
O'Hanlon had to settle for the silver medal, despite posting a season's best 10.98. Brazil's Edson Pinheiro took bronze in 11.26.
"My calf is a little sore and I'm probably a little bit in shock," said O'Hanlon, who won gold in the event at the last two Paralympics.
"This is the first time I've been beaten on the international stage since probably 2006. I can't take anything away from Hu. He ran a world record to beat me. I just got beaten by a faster guy on the day. I can't complain."
Recently married, O'Hanlon said a calf injury would likely rule him out of the 400m here as he considers retirement.
"I think I'm going to have to step away from the track at this point," he said. "I'd love to keep running but realistically I'd like to give my family the best start.
"I think I'll go back, have my honeymoon and I'll know by the end of that. My honeymoon is all around South America."
Another Chinese athlete to set a new world record was Huang Wenpan as he took gold in the men's 50m freestyle S3 final.
The 21-year-old touched the wall in 39.24 seconds to shatter his own mark by 1.26 seconds.
Ukraine's Dmytro Vynohradets grabbed silver in 41.41 and China's Li Hanhua bronze in 42.18.
It was Huang's second gold medal of these Games after his victory in the mixed 4x50 freestyle 20 points on Friday.
Zhou Cong broke the world record to win gold in the men's 100m backstroke S8. The 27-year-old finished in one minute 2.90 seconds to beat the previous record held by Russia's Konstantin Lisenkov by 0.42sec.
Britain's Oliver Hynd took silver in 1:04.46 and Robert Griswold claimed bronze in 1:04.68.
Zhou was left with spinal cord injuries after a car accident when he was 16. He was previously a promising able-bodied swimmer, winning several national championship titles.
Yang Bozun smashed his own world record to win his second straight Paralympic 100m breaststroke SB11 title.
The 30-year-old, who became blind at 19 due to glaucoma, touched the wall in 1 minute 10.08 seconds to beat his previous mark by three hundredths of a second.
Tharon Drake of the United States grabbed silver in 1:11.50 and Japan's Keiichi Kimura took bronze in 1:12.88.
It was Yang's third gold medal at the Rio Games and seventh Paralympic title overall. He also won the 50m freestyle S11 and 100m backstroke S11 finals here.
Teenager Zhang Xiaotong set a new world record to win gold in the women's 100m breaststroke SB11.
The 17-year-old clocked one minute 23.02 seconds to smash the previous record held by Liesette Bruinsma of the Netherlands by 1.61 seconds.
Bruinsma claimed silver in 1:25.81 and Sweden's Maja Reichard took bronze in 1:26.60.
And Shang Guangxu beat his own world record to win gold in the men's long jump T37.
The 21-year-old leapt 6.77 meters with his third attempt to break the previous record of 6.47m he set in Doha last year.
Brazil's Mateus Evangelista Cardoso took silver with 6.53m and Pakistan's Haider Ali bronze with 6.28m.
Guangxu was born with cerebral palsy, which affects the left side of his body.
Chinese fencer Zhou Jingjing claimed gold in the women's individual epee category B by defeating Thailand's Jana Saysunee in the final.
Zhou, 29, took the match 15-10, securing her first Paralympic fencing title at Carioca Arena 3.
"I'm so excited to win the gold medal bout against an excellent athlete," Zhou said. "I attacked more than her using a strategy based on the fact that she's taller and longer than me. I'm short but this is not a disadvantage: I could attack more because of that."
In the bronze medal match Hong Kong, China's Chan Yui Chong defeated Germany's Simone Briese-Baetke 15-14.
Zou Xufeng beat fellow Chinese fencer Bian Jing to clinch gold in the women's individual epee category A final.
The 25-year-old won the match 15-11 at Carioca Arena 3.
"I'm super happy. It is my first Paralympic Games participation and my first medal, a gold - I can't be more excited about this," said Zou, who has impaired muscle power.
Bian was gracious in defeat, praising the performance of her friend, Zou.
"Whoever got the gold medal would have been so happy for the other," Bian said. "So I'm still happy for my teammate that she won the gold, although I didn't get it myself."
Sun Gang claimed China's first wheelchair fencing gold medal here by defeating Britain's Piers Gilliver in the men's individual epee category A final.
The 23-year-old won his maiden Paralympic title by taking the match 15-13 at Carioca Arena 3.
In the bronze medal duel Tian Jianquan of China beat Iraq's Zainulabdeen Al-Madhkhoori 15-11.
Liu Meng secured China's ninth table tennis gold medal by defeating compatriot Lei Lina in the women's singles class 9 final.
The 19-year-old, whose impairment was the result of a car crash, needed just 23 minutes to wrap up the match 3-0 (12-10, 13-11, 13-11) at Riocentro.
In the bronze medal duel, Poland's Karolina Pek came back from two sets down to beat Brazil's Danielle Rauen 3-2 (8-11, 8-11, 11-9, 11-5, 11-5) in a match that lasted 39 minutes.
Zhang Cuiping clinched her third Paralympic shooting gold medal by defeating Slovakia's Veronika Vadovicova in the final of the R8 50m rifle 3P SH1.
The 28-year-old finished with 455.4 points, 6.0 points ahead of Vadovicova. South Korea's Lee Yunri claimed bronze with 437.8 points.
Zhang also won the R2 10m air rifle standing SH1 and R8 50m rifle 3 positions SH1 gold at the London 2012 Games.
Her impairment is the result of polio, which she contracted aged three.
Zhao Shuai successfully defended his Paralympic table tennis singles class 8 title with a straight sets victory over Hungary's Andras Csonka.
The 21-year-old, who had his left arm amputated when he was four after a car accident, won the final 11-5, 11-6, 11-9 in 18 minutes at Riocentro.
In the bronze medal match Poland's Piotr Grudzien overcame China's Ye Chaoqun 3-2 (11-6, 5-11, 11-9, 3-11, 11-3).
And Shi Yiting recorded a personal best time of 28.74 seconds to win the women's 200m T36 final.
The 18-year-old finished more than two seconds ahead of South Korea's Jeon Min Jae, who took silver. Germany's Claudia Nicoleitzik claimed bronze in 31.13.