It began as an idea to celebrate Ealing’s involvement in London’s 2012 Games.
But two months ahead of the Olympic torch’s arrival in the borough, the Ealing Half Marathon has already clocked up 2,012 entrants.
And organisers of the race – on September 30 – say the “overwhelming” public interest in the event means it should prove to be a lasting legacy of the Games.
Race director Kelvin Walker said: “When we opened for entries, we had no idea how popular it would be.