Complex sentence: In the final of the 200-meter backstroke, Lochte lead Clary throughout the race and at the 150-meter mark, Clary was 0.12 seconds behind Lochte.
Split into simpler sentences: In the final of the 200-meter backstroke, Lochte lead Clary throughout the race. At the 150-meter mark, Clary was 0.12 seconds behind Lochte.