I believe it 9 or 10 am with races a hours later
The Gates open at 9:00 am every race day The race's start at 5:00 pm on fireworks day
9:00 am. However you should call because seats sell out early. They started selling July 3rd seats last Tuesday (19 th). They even sell reservations for the picnic tables at track level. They reserve those tables which are usually forst come, first served. People like to pay for the tables so they have a guaranteed seat for the day. Grandstand seatinhg also sells fast. Everyone wants the uncovered seats because they have an unobstructed view of the fireworks. It is definitely a POPULAR venue on July 3rd.
The gates open at 9:00 am. on opening day. Enjoy.
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