Complex sentence: He never reached 1,000 runs in a season, his closest approach coming with 990 in 1928: he had been well on course at the end of July, having already passed 800, but his highest score in 16 innings thereafter was just 30.
Split into simpler sentences: He never reached a thousand runs in a season, his closest approach coming with 990 in 1928. He had been well on course at the end of July, having already passed 800, but his highest score in 16 innings thereafter was just 30.