LONDON--(BUSINESS WIRE)--Today, (15 September) over 3,000 runners will take part in Teach First's sold out flagship fundraising event 'Run the River' at 7pm, proudly sponsored by Citi. The twilight run, now in its third year, has a new improved 5k and 10k route around iconic London landmarks along the River Thames Starting and ending at More London at London Bridge, this year's improved route will see contenders pass over Tower Bridge, Blackfriars Bridge and Southwark Bridge, as well as taking