Over 6,000 runners wore yellow ribbons, which have become the symbol in the #FindAlice appeal, when they ran in the Ealing Half Marathon this weekend.
The winner of the men's group was Ugandan Bem Siwa, 24, who ran the half marathon in one hour, seven minutes and 33 seconds.
Winner of the women's group was Kenyan Gladys Yator, 21, who finished in one hour, 15 minutes and 58 seconds.
Race director Kelvin Walker said: "We run through an area where she lives and quite close to where her school is, so it's a very poignant day. The whole course is littered with ribbons, it's a very emotional sight.
"We've got 6,000 bows of ribbons here which have been created by the community in the last two or three days and we expect virtually every runner will be wearing a ribbon."
Diana Russell from Ealing said: "We have been behind the yellow ribbon and poster campaign right from the beginning. Alice is a Hanwell girl so we are all heartbroken for her and her family and we just want to help to bring her home safely.
"It's very close to home for us as we regularly walk Charlie, our black labrador, along that stretch of the canal. We have desperately wanted to help and always keep our eyes and ears open for any clues whatsoever that could lead to her being found. Charlie has been wearing his yellow ribbon for weeks now. Although it has had to be replaced a few times."
Ealing Council leader Julian Bell ran the race with his daughter Angellica Bell both with the time of two hours and 56 seconds. He said: "I have not put one running step infront of the other for two and a half years so having not trained at all I'm quite pleased with my self for finishing in three hours. It has been a fantastic day with every ethnicity and religion coming together supersceding all prejudices. I call it the 'Ealing feeling'. The support from the community in the area as we have all run through has been phenomenal. The support and cheering made it that little bit less painful.
Angellica Bell said: "I dragged him along most of the way. I would normally run a half marathon in one hour 50minutes but doing it this way to support my dad meant that it was more of a site seeing exercise. I was able to take in all the places where I grew up and appreciate what a lovely area it is. The support from the community as we went around was wonderful. It was great fun."
Julian Bell added: "It's this same community spirit that has got behind the Alice Gross appeal which has seen over 6,000 visitors and runners wearing the yellow ribbons to continue to raise awareness that one of our girls is missing and needs to be found. The volunteers were here very early this morning handing out the ribbons doing a fantastic job. Anything that will help to spread the knowledge of the Alice Gross investigation in order to jog someones memory about a small detail that could help find her is worth every effort. Hanwell has always had an incredibly strong community spirit so the level of support has not surprised me one bit.
