2019 London Marathon
... that at the 2019 London Marathon, the total raised for charities surpassed £1 billion since the first race in 1981?
... that at the <b id="mwBnM"><a href="./2019_London_Marathon" id="mwBnQ" rel="mw:WikiLink" title="2019 London Marathon">2019 London Marathon</a></b>, the total raised for charities surpassed £1<span id="mwBnU" typeof="mw:Entity"> </span>billion since the first race in 1981?