[wheeler]

How many teams? This is the most important part to figure out.
For the basics you will need the at least the following:
1 tournament table setup
2 practice tables in pit area
2 classroom spaces for presentations
3 judges per room
2 judges for floating in the pit and competiton area
concession stand $$$$$

We ran one last year for 30 teams and set up the schedule like this

Round 1 Competition #1 10 min per match we had 3 tournament tables so it took 1hr

Round 2 Presentations #1 15 min per time slot we had 3 rooms for each Research and technical presentation each team did one presentation during this time

Round 3 Competition #2 same as #1

Lunch break

Round 4 Presentation #2 same as above

Round 5 Competition #3 same as before

30 min clean up and judges meeting

Awards
hope this helps