Complex sentence: His first scheduled event for the team was the May 30th event at Dover International Speedway, however he did not qualify for the race after wrecking in practice, getting loose in the 4th turn and hitting the inside wall.
Split into simpler sentences: His first scheduled event for the team is the May 30th event at Dover International Speedway. He DNQ'ed after wrecking in practice getting loose in the 4th turn and hitting the inside wall.