US Open 2026: Katie Boulter blown away by Karolina Muchova

British No 1 Katie Boulter suffered a swift US Open exit, losing to Karolina Muchova 6-1 6-0 in just 58 minutes at Louis Armstrong Stadium. Boulter was broken in all seven of her service games, double-faulted eight times, and committed 22 unforced errors in the straight-sets defeat. Muchova, the 2026 Wimbledon finalist, dominated throughout, bageling Boulter in the second set.