Complex sentence: Ustyugov intended to enrol to the Physicial Faculty for Culture at the Pedagogical Institute, but becausef of his grades, he moved his documents to the Divnogorsk Olympic Reserve School.
Split into simpler sentences: Ustyugov intended to enrol to the Physicial Faculty for Culture at the Pedagogical Institute, but his grades hindered enrolment. He then sent his documents to the Divnogorsk Olympic Reserve School.