Intervention gets the vote in a tight Chelmsford seven-furlong contest, his progressive profile and fitness edge making him preferable to the top-rated Obsidian Dream, who is only three pounds better on our figures. The clock also backs his form, which gives us a sound basis for siding with him at 69. Obsidian Dream is the chief danger, while Yachtsman and Shaw Park are both two pounds behind her and sit just one pound clear of our pick, so this looks an open race with a thin margin for error. Intervention is the selection.