Ben Ainslie believes a British team could challenge a US team to win the America's Cup.
"I think so, it sounds like there's been quite a good following in the UK," he told BBC Radio 5 Live.
"We've got the talent in the UK in terms of sailors, designers, you've seen the public reaction to this racing, people love it."
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The 10K and half-marathon races take place almost exactly a year after Salman Abedi killed 22 in his attack at an Ariana Grande concert.
Dmitrios Pagourtzis also had several kinds of homemade explosive devices but they were not capable of detonating, county officials said.
After early mist clears, most parts of England and Wales will have another fine, warm day with plenty of sunshine.