Complex sentence: The off track betting facility is open during the off season of the Del Mar Racetrack live meets, and offers day and night racing with over 1000 televisions and live wagering of major racetracks.
Split into simpler sentences: The off track betting facility is open during the off season of the Del Mar Racetrack live meets. They offer day and night racing with over 1000 televisions and live wagering of major racetracks.