A motorist has been arrested on suspicion of causing death by careless driving after a cyclist died while taking part in a time trial.
Police said the 27-year-old was arrested after an Audi collided with the cyclist on the A46 near Oversley in Warwickshire on Wednesday night.
He has since been released on police bail, the spokesman added.
Bystanders were trying to help the woman when paramedics arrived but she was confirmed dead at the scene.
West Midlands Ambulance Service said crews treated a middle-aged woman who had suffered multiple injuries.