A one-minute round of applause was held by a running club ahead of a race at the former RAF Coltishall base in memory of a former member who was killed in a car crash.
Sze-Ming Cheung was in the Coltishall Jaguars athletics club until 2015 and remained friends after he moved to Norwich Road Runners.
The applause was held at the start of the annual Mike Groves 10K Race at 10am today.
About 500 runners took part with participants urged to wear a club vest or t-shirt in his memory.
Race director Paul Taylor said: 'It's a sad day. Sze-Ming was responsible for designing our awesome club kit and logo. He has left a very big hole in people's lives and a number of our members were in bits before the race.
'We asked runners to wear bright clothes which a lot of them have done, and also some of the Jaguars were wearing black armbands in respect.
'We lost a dear friend who was close to many people at the club. He touched many hearts and will be sadly missed by Alex, his family and friends.'
Three races were held, a wheelchair, the Mike Groves and a children's race.
Meanwhile, tributes have been paid to the popular athlete who was cycling on Reepham Road in Swannington at about 4pm last Thursday when he was in a crash with a grey Nissan Navara.
The driver of the car, a 55-year-old from the Reepham area, was arrested at the scene on suspicion of causing death by dangerous driving.
Mr Cheung ran Casey's fish and chip shop in Reepham Road, Hellesdon, with his family also running the next door Chung Hing Chinese take away.
But the former Hellesdon High School pupil was also very well-known as a runner, cyclist, swimmer and triathlete.
Alan Groves, president of Coltishall Jaguars, said the minute's applause was the least they could do.
He said: 'He left us in 2015 but remained friends. He wasn't a Jaguar member but he was a Jaguar friend.'
Mr Groves organised the original Mike Groves race in 2000 in memory of his son Michael, a talented athlete who died in a traffic accident.
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