Katie Boulter responds to Sonay Kartal run by backing up Japan Open winSportOct 20 at 10:30 PM – Oct 21 at 4:21 AM3 outletsUnited KingdomBBC NewsBoulter wins in under an hour to reach quarters Oct 21 at 4:18 AMThe IndependentKatie Boulter responds to Sonay Kartal run by backing up Japan Open win Oct 21 at 4:21 AMSky SportsBoulter beats Golubic to reach Japan Open quarter-finals seen Oct 21 at 4:09 AMT. Gibson v S. Kraus seen Oct 20 at 10:30 PM