The elite women have just crossed the 15km mark and it's still the same two out in front. Last year's winner Mary Keitany and runner-up Tirunesh Dibaba have created a gap ahead of the chasing field. Live 💻 https://t.co/2xqdN93yRe 📺 BBC One #LondonMarathon #GetInspired https://t.co/jEKxnNnC39