Complex sentence: By the end of the season, Oscar Robertson's career statistics for the first five years of his career averaged out to a triple double: 30.3 points per game, 10.4 rebounds per game, and 10.6 assists per game.
Split into simpler sentences: By the end of the season, Oscar Robertson's career stats for the first five years of his career averaged out to a triple double. His career average was 30.3 points per game, 10.4 rebounds per game, and 10.6 assists per game.