Complex sentence: On the first day, the team time trial events were won by (women) and (men) for the second consecutive year; the latter squad's victory in the men's race came by 0.81 seconds over.
Split into simpler sentences: On the first day, the team time trial events were for the second consecutive year won by (women) and (men). The men's squad's victory in the men's team time trial came by 0.81 seconds over.