Complex sentence: McGee won the NL batting crown with a.335 average, but hit only.274 the rest of the season in Oakland, for a season average of.324,.006 lower than Murray's Major League leading.330 average.
Split into simpler sentences: McGee won the National League title with a.335 average, but hit only.274 the rest of the season in Oakland. His season average was.324,.006 points lower than Murray's Major League leading.330 average.