Simplify the following text for a Grade 9 native English-speaking person.
Original: On 22 January 2010 it was confirmed that Silverstone would host the British round of the 2010 Superbike World Championship season , taking over from Donington Park after the circuit was deemed `` un-raceable '' due to the postponed construction that had commenced in 2009 .
Simplified: On 22 January 2010 it was confirmed that Silverstone would host the British round of the 2010 Superbike World Championship season . The race was moved after Donington Park was deemed `` un-raceable '' .