PARIS - The United States won their first two track and field titles of the Paris Paralympics on Saturday but China piled on the medals to stretch their lead in the table.
On the same track at the Stade de France where his compatriot Noah Lyles won the Olympic gold nearly four weeks ago, Jaydin Blackwell charged to the men's T38 100m final in a world record time of 10.64sec.
Blackwell, who has cerebral palsy, donned a pair of sunglasses to celebrate his victory.
There was more USA success as wheelchair racer Daniel Romanchuk upstaged reigning champion Marcel Hug of Switzerland in an exciting men's 5000m T54 final.
Romanchuk, a 26-year-old who was born with spina bifida, burst past five-time gold medallist Hug in the home straight, leaving the Swiss in silver medal position while Faisal Alrajehi took a rare Paralympic medal for Kuwait in third.
British veteran David Weir, a multiple Paralympic medallist, faded and finished eighth.
Romanchuk has impressive range having taken gold at 400m at the 2020 Tokyo Paralympics and has also won the Chicago, New York and Boston marathon wheelchair races.
China added an early gold medal on Saturday thanks to javelin thrower Yuping Zhao, who set a world record of 47.06 metres in the F12 category for athletes with a moderate visual impairment.
The Chinese team had moved up to 20 golds by the end of Saturday's action, showing that the nation that has topped the medals table at every Paralympics since Athens in 2004 is well on the way to repeating that feat.
In the pool, Brazilian swimmer Gabriel dos Santos Araujo, known as Gabrielzinho, won his second title of the Paris Games by taking the 50m backstroke gold in the S2 category.
Gabrielzinho has stumps where his arms should be and his legs are atrophied, although he can walk.
Britain remained in second place in the medal standings with 11 golds as Alice Tai won her first individual Paralympic title, taking the S8 100m backstroke gold and Stephen Clegg and William Ellard both set world records to triumph in their events.
The USA finished the day with five golds and fifth in the table.