Hi Ann.
Don't run after him.
Get some raw meat, go down to his height, talk very softly to him.
Throw some meat towards him, throw some nearer you, repeat until you can pet him then slowly take hold of his collar.
Then phone Celia and me on 07826 244765.
We'll try to find him too.
Thanks for telling us.
Jimmy. Greyhound Rescue Fife.