Great Britain's David Weir won the wheelchair race at the London Marathon for a record-equalling sixth time.
The 32-year-old won a sprint finish to take the title in 1:32:26 and equal
Baroness Tanni Grey-Thompson's record.
"This is my favourite win ever because the field was so strong," Weir told BBC Radio 5 live.
Shelly Woods ensured there was further success for Britain's Paralympians as she cruised to victory in the women's wheelchair race.
Weir beat Switzerland's Marcel Hug by a second, with American Krige Schabort a further second adrift.
"That was perfectly timed and well executed. It shows that David Weir is in the best form of his life. And it's absolutely amazing what Shelly Woods has done today."
However, with increasing family commitments, the 32-year-old suggested Sunday's London Marathon could be his last.
"Maybe," Weir said. "I've got an eight-month-old baby boy and I've got another one on the way in October, so I need a bit of time at home.
"There's not a lot of goals left. I'll definitely take a year out after the [Paralympics] because I want to spend some time with my family."
The Londoner admitted it was a "great privilege" to match Grey-Thompson, whom Weir described as a role model.
"She was the one who got me back into the sport when I had a little dip," said Weir.
"I wasn't enjoying the sport but watching her in Sydney [at the 2000 Olympics] brought me back, so it is great to equal her record.
"I was quite emotional when I crossed the line because it could be my last one for a while."
Woods, 26, finished almost three minutes ahead of Japan's Wakako Tsuchida, while Canadian Diane Roy took third.
"I'm really happy," Woods told BBC Radio 5 live. "I can't believe it.
"To win a Paralympic gold medal is my ambition as an athlete. If I could do it in London would be amazing. I wouldn't say I'm now favourite for a Paralympic gold but that's the ambition in my career."